helium has been researched along with Sensitivity and Specificity in 122 studies
Timeframe | Studies, this research(%) | All Research% |
---|---|---|
pre-1990 | 1 (0.82) | 18.7374 |
1990's | 16 (13.11) | 18.2507 |
2000's | 54 (44.26) | 29.6817 |
2010's | 51 (41.80) | 24.3611 |
2020's | 0 (0.00) | 2.80 |
Authors | Studies |
---|---|
Chan, HF; Collier, GJ; Johns, CS; Lawson, RA; Marshall, H; Norquay, G; Wild, JM | 1 |
Cheng, HT; Guo, CY; Hu, HT; Li, HL; Xiao, JC; Zong, DW | 1 |
Cai, H; Stearns, SD | 1 |
Kirby, M; Leary, D; Maksym, GN; McCormack, DG; Parraga, G; Starr, D; Svenningsen, S; Wheatley, A | 1 |
Fox, MS; Ouriadov, A; Santyr, GE | 1 |
Deppe, MH; Lawson, R; Lipson, DA; Marshall, H; Parra-Robles, J; Wild, JM | 1 |
Emami, K; Hamedani, H; Ishii, M; Kadlecek, S; Rizi, R; Xin, Y; Xu, Y | 1 |
de Rochefort, L; Durand, E; Friese, M; Hagot, P; Maître, X; Martin, L; Sarracanie, M | 1 |
D'Armiento, J; Emami, K; Mongkolwisetwara, P; Profka, H; Rizi, R; Shiomi, T; Siddiqui, S; Xin, Y | 1 |
Chang, YV; Quirk, JD; Yablonskiy, DA | 2 |
Choy, S; Guo, F; Kirby, M; McCormack, DG; Parraga, G; Svenningsen, S; Wheatley, A | 1 |
Guo, F; Kirby, M; McCormack, DG; Parraga, G; Pike, D | 1 |
Altes, TA; Brookeman, JR; Cates, GD; de Lange, EE; Komlosi, P; Mata, JF; Miller, GW; Mooney, KE; Mugler, JP; Qing, K; Tobias, WA | 1 |
Clapp, J; Hamedani, H; Kadlecek, S; Rizi, RR; Rossman, MD; Shaghaghi, H; Siddiqui, S; Xin, Y | 1 |
Quirk, JD; Sukstanskii, AL; Yablonskiy, DA | 1 |
Akeson, P; Casselbrant, I; Diaz, S; Ekberg, O; Leander, P; Magnusson, P; Peterson, B; Piitulainen, E; Wollmer, P | 1 |
Chhina, N; De Zanche, N; Pruessmann, KP; Randell, C; Teh, K; Wild, JM | 1 |
Baldacchini, G; Grassano, UM; Tanga, A | 1 |
Etemad-Rezai, R; Evans, A; Fogel, R; Mathew, L; McCormack, DG; Ouriadov, A; Parraga, G; Santyr, G | 1 |
Chen, J; Liu, C; Merges, R; Sun, C; Wang, D; Wang, XM | 1 |
Cooper, M; Espy, M; Matlashov, A; Savukov, I; Volegov, P | 1 |
Foran, BH; Hatton, MQ; Hoggard, N; Ireland, RH; Swinscoe, JA; Wild, JM; Woodhouse, N | 1 |
Kaulisch, T; Peces-Barba, G; Pérez-Sánchez, JM; Rodríguez, I; Ruiz-Cabello, J; Stiller, D | 1 |
Emami, K; Ishii, M; Kadlecek, S; Law, M; Rizi, RR; Stephen, M; Vahdat, V; Woodburn, JM; Yu, J | 1 |
Altes, TA; Brookeman, JR; Hagspiel, KD; Mata, JF; Miller, GW; Mugler, JP; Ruppert, K | 1 |
Akeson, P; Casselbrant, I; Diaz, S; Ekberg, O; Magnusson, P; Peterson, B; Pickering, E; Piitulainen, E; Tuthill, T | 1 |
Agranat, AJ; Gumennik, A; Israel, A; Perepelitsa, G | 1 |
Bley, TA; Brodsky, EK; Busse, WW; Fain, SB; Francois, CJ; Holmes, JH; O'Halloran, RL; Sorkness, RL; Velikina, JV | 1 |
Emami, K; Ishii, M; Kadlecek, SJ; Pickup, S; Rizi, RR; Vahdat, V; Woodburn, JM; Yu, J; Zhu, J | 1 |
Hugon, C; Jacquinot, JF; Sakellariou, D | 1 |
Bentzen, SM; Fain, SB; Hodge, CW; Mehta, MP; Tomé, WA | 1 |
Alexander, A; Fain, SB; Holmes, JH; O'Halloran, RL; Wu, YC | 1 |
Karpuk, S; Keil, B; Meise, FM; Rivoire, J; Salhi, Z; Schreiber, LM; Terekhov, M; Wald, LL; Wiggins, GC | 1 |
Hedlund, LW; Johnson, GA; Mistry, NN; Qi, Y | 1 |
Etemad-Rezai, R; Gaede, S; Mathew, L; Parraga, G; Rodrigues, GB; Wheatley, A | 1 |
Driehuys, B; Johnson, GA; Kaushik, SS; Mistry, NN; Thomas, A | 1 |
Aubert, F; Bannier, E; Berthezène, Y; Cieslar, K; Crémillieux, Y; Duboeuf, F; Gaillard, S; Mosbah, K; Reix, P; Salhi, Z | 1 |
Ajraoui, S; Deppe, MH; Parnell, SR; Parra-Robles, J; Wild, JM | 1 |
Altes, TA; Awate, SP; Cai, J; de Lange, EE; Gee, JC; Miller, GW; Mugler, JP; Tustison, NJ | 1 |
Chapligin, B; Friedrichsen, H; Hubberten, HW; Marent, A; Meyer, H; Sohns, E | 1 |
Blum, A; Chia, E; Emami, K; Ishii, M; Kadlecek, S; Macduffie-Woodburn, JP; Pickup, S; Rizi, RR; Zhu, J | 1 |
Chia, E; Emami, K; Ishii, M; Kadlecek, S; Pickup, S; Rizi, RR; Rossman, M; Stephen, MJ; Woodburn, JM; Zhu, J | 1 |
Edison, SE; Gamble, BM; Lin, LA; Wong, J; Zhang, K | 1 |
Atkinson, JJ; Conradi, MS; Nguyen, NM; Osmanagic, E; Sukstanskii, AL; Wang, W; Woods, JC; Yablonskiy, DA | 1 |
Ajraoui, S; Deppe, MH; Parra-Robles, J; Wild, JM | 1 |
Gast, K; Meise, F; Rivoire, J; Salhi, Z; Santoro, D; Schreiber, LM; Terekhov, M | 1 |
Deppe, MH; Lanz, T; Marshall, H; Parra-Robles, J; Wild, JM | 1 |
Altes, TA; Avants, BB; de Lange, EE; Flors, L; Gee, JC; Mugler, JP; Tustison, NJ | 1 |
Ball, I; Beardsmore, CS; Garipov, R; Kuehni, CE; Mada, M; Narayanan, M; Owers-Bradley, J; Panesar, KS; Silverman, M; Spycher, BD; Williams, SE | 1 |
Deppe, MH; Wild, JM | 1 |
Izquierdo-Garcia, JL; Kyriazis, A; Lorente, JA; Nin, N; Olsson, LE; Perez-Sanchez, JM; Pesic, J; Rodriguez, I; Ruiz-Cabello, J | 1 |
Agapov, E; Holtzman, MJ; Nguyen, NM; Wang, W; Woods, JC | 1 |
Ajraoui, S; Parra-Robles, J; Wild, JM | 1 |
Ban, S; Iwase, H; Namito, Y; Sasaki, S; Sato, T; Satoh, D; Takada, M; Takahashi, F; Tsuda, S | 1 |
Atmanene, C; Petiot-Bécard, S; Sanglier-Cianférani, S; Van Dorsselaer, A; Vivat Hannah, V; Zeyer, D | 1 |
McCormack, DG; Owrangi, AM; Parraga, G; Wang, JX; Wheatley, A | 1 |
Eom, S; Kang, J; Lee, H; Lee, K; Shin, H | 1 |
Coxson, HO; Etemad-Rezai, R; Farag, A; Kirby, M; McCormack, DG; Ouriadov, A; Owrangi, A; Parraga, G; Santyr, GE; Svenningsen, S; Wheatley, A | 1 |
Beltran, J; Cherta, L; Hernández, F; Portolés, T | 1 |
Etemad-Rezai, R; Kanhere, N; Kirby, M; McCormack, DG; Parraga, G | 1 |
Bunch, DR; Cieslak, W; Jackson, R; Pap, K; Reineks, E; Steinle, R; Wang, S | 1 |
Emami, K; Hamedani, H; Ishii, M; Kadlecek, SJ; Kuzma, NN; Rizi, RR; Rossman, M; Xin, Y | 1 |
Emami, K; Hamedani, H; Ishii, M; Kadlecek, S; Profka, H; Rizi, RR; Xin, Y; Xu, Y | 1 |
Briguet, A; Brochot, J; Callot, V; Canet, E; Crémillieux, Y; Humblot, H; Tournier, H | 1 |
Deninger, AJ; Erjefeldt, I; Fridlund, B; Golman, K; Hansson, G; Magnusson, P; Månsson, S; Petersson, JS; Pettersson, G; Svensson, J; Wollmer, P | 1 |
Kauczor, HU | 1 |
Danell, AS; Danell, RM; Glish, GL; Vachet, RW | 1 |
Biedermann, A; Eberle, B; Gast, KK; Heussel, CP; Kauczor, HU; Knitz, F; Ley, S; Mayer, E; Schmiedeskamp, J; Schreiber, WG; Thelen, M; Zaporozhan, J | 1 |
Jamieson, GG; Krysztopik, R; Ludemann, R; Watson, DI | 1 |
Borgerding, AJ; Finley, JW; Lukaski, HC; Roberge, MT | 1 |
Fichele, S; Griffiths, PD; Paley, MN; van Beek, EJ; Wild, JM; Woodhouse, N | 1 |
Altes, TA; Brookeman, JR; De Lange, EE; Miller, GW; Mugler, JP | 1 |
D'Angelo, E; Foresi, A; Milic-Emili, J; Pecchiari, M; Pelucchi, A | 1 |
Farhat, S; Hinkov, I; Scott, CD | 1 |
Manz, A; Naji, OP | 1 |
Albert, MS; Handler, Z; Hong, K; Lewis, TA; Mansour, J; McKinstry, EL; Sun, Y; Tooker, AC; Tzeng, YS | 1 |
Bae, KT; Conradi, MS; Hong, C; Leawoods, JC; Leyendecker, JR; Pilgram, TK; Woodard, PK; Yablonskiy, DA; Zheng, J | 1 |
Berthelsen, AK; Dirksen, A; Hanson, LG; Mortensen, J; Schmiedeskamp, J; Stavngaard, T; Søgaard, LV | 1 |
Biedermann, A; Eberle, B; Gast, KK; Heussel, CP; Kauczor, HU; Ley, S; Mayer, E; Thelen, M; Zaporozhan, J | 1 |
Chernetsova, ES; Durst, D; Revelsky, AI; Revelsky, IA; Sobolevsky, TG | 1 |
Darrasse, L; de Rochefort, L; Durand, E; Guillot, G; Maître, X; Robert, P; Santus, R; Vignaud, A; Vivès, V | 1 |
Dahmen, A; Gast, KK; Heussel, CP; Kauczor, HU; Morbach, AE; Schreiber, WG; Thelen, M; van Beek, EJ | 1 |
Choi, MY; Miller, RE | 1 |
Grossman, RI; Johnson, G; Lee, RF; McGuinness, G; Stoeckel, B; Trampel, R | 1 |
Balouch, J; Hopkins, SR; Olfert, IM; Wagner, PD | 1 |
Bae, KT; Conradi, MS; Cooper, JD; Gierada, DS; Hogg, JC; Tanoli, TS; Woods, JC; Yablonskiy, DA | 1 |
Chan, KC; Chan, KK; Cheung, PY; Chu, HS; Sham, WC; Yip, YC | 1 |
Jensen, JH; Johnson, G; Kamenetskiy, I; Lee, RF; McGuinness, G; Trampel, R | 1 |
Fujiwara, H; Imai, H; Inoshita, H; Kimura, A; Narazaki, M | 1 |
Bentley, J; Choong, CK; Conradi, MS; Cooper, JD; Hogg, JC; Macklem, PT; Pierce, JA; Wong, J; Woods, JC; Yablonskiy, DA | 1 |
Acosta, RH; Agulles-Pedrós, L; Blümler, P; Heil, W; Herweling, A; Morbach, AE; Schmiedeskamp, J; Scholz, A; Schreiber, WG; Spiess, HW; Thelen, M; Wolf, U | 1 |
Altes, TA; Brookeman, JR; de Lange, EE; Mata, J; Mugler, JP | 1 |
Altes, TA; Fain, SB; Holmes, JH; O'Halloran, RL; Salerno, M | 1 |
de Zanche, N; Teh, K; Wild, JM | 1 |
Alagappan, A; Ballingall, I; Costen, ML; McKendrick, KG; Paterson, G | 1 |
Altes, TA; Benedict, SH; Brookeman, JR; Cai, J; Cates, GD; de Lange, EE; Miller, GW; Mugler, JP; Read, PW; Sheng, K | 1 |
Botha, A; Janse van Rensburg, M; Rohwer, E | 1 |
Allen, ED; Bar-Yishay, E; Castile, RG; Filbrun, DA; Flucke, RL; McCoy, KS | 1 |
Bogaard, JM; Bruining, HA; Feenstra, BW; Gültuna, I; Huygen, PE; Ince, C; Zwart, A | 1 |
Abbot, NC; Ferrell, WR; Lockhart, JC; Lowe, JG | 1 |
Baker, CW; Bogucki, TM; Haus, AG; Murphy, WR; Piazza, SS | 1 |
Brune, T; Hentschel, R; Jorch, G; Suska, A; Volbracht, A | 1 |
Alvarez-Sala, R; García-Río, F; Pino-García, JM; Racionero, MA; Serrano, S; Terreros-Caro, JG; Villamor, J; Villasante, C | 1 |
Chawla, MS; Chen, XJ; Hedlund, LW; Johnson, GA; MacFall, JR; Möller, HE | 1 |
Dimitrov, IE; Gentile, TR; Ishii, M; Jones, G; Leigh, JS; Reddy, R; Rizi, RR; Schnall, MD; Thompson, A | 1 |
Chawla, MS; Chen, XJ; Cofer, GP; Hedlund, LW; Johnson, GA; Möller, HE | 1 |
Frey, U; Jackson, AC; Kraemer, R; Silverman, M | 1 |
Kauczor, HU; Markstaller, K | 1 |
Cowie, G; Lloyd, D | 1 |
Baldwin, DR; Cliff, IJ; Evans, AH; Pantin, CF | 1 |
Liistro, G; Stanescu, D; Veriter, C | 1 |
Brey, WW; Hurlston, SE; Johnson, GA; Suddarth, SA | 1 |
Cooper, NP | 1 |
Delank, W; Khanavkar, B; Nakhosteen, JA; Stoll, W | 1 |
Stearns, SD; Sun, K; Wentworth, WE | 1 |
Beverding, A; Casson, WH; Devine, RT; Hsu, HH; Kleck, JH; Olsher, RH; Vasilik, DG | 1 |
Cofer, GP; Hedlund, LW; Johnson, GA; Maronpot, RR; Suddarth, SA | 1 |
Rodrigo, C; Rodrigo, GJ | 1 |
Eberle, B; Gast, K; Hanke, A; Kauczor, HU; Markstaller, K; Thelen, M; Viallon, M | 1 |
Koda, E; Soejima, K; Sugiyama, N; Yamaguchi, K | 1 |
Eberle, B; Gast, KK; Hanke, AT; Kauczor, HU; Lill, J; Puderbach, MU; Schmiedeskamp, J; Viallon, M | 1 |
4 review(s) available for helium and Sensitivity and Specificity
Article | Year |
---|---|
Diffusion lung imaging with hyperpolarized gas MRI.
Topics: Administration, Inhalation; Animals; Contrast Media; Diffusion Magnetic Resonance Imaging; Evidence-Based Medicine; Gases; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Xenon Isotopes | 2017 |
Hyperpolarized helium-3 gas magnetic resonance imaging of the lung.
Topics: Helium; Humans; Isotopes; Lung; Magnetic Resonance Imaging; Partial Pressure; Pulmonary Ventilation; Sensitivity and Specificity | 2003 |
[Magnetic resonance tomography with inhalation of polarized noble gases: new perspectives in functional imaging diagnosis of emphysema].
Topics: Administration, Inhalation; Contrast Media; Helium; Humans; Magnetic Resonance Imaging; Noble Gases; Pulmonary Emphysema; Sensitivity and Specificity; Xenon | 1998 |
Aerosol and inhaled therapy in treatment of acute adult airway obstruction in the emergency department.
Topics: Acute Disease; Administration, Inhalation; Adrenal Cortex Hormones; Adrenergic beta-Agonists; Adult; Aerosols; Airway Obstruction; Anti-Asthmatic Agents; Asthma; Cholinergic Antagonists; Critical Care; Emergency Service, Hospital; Emergency Treatment; Female; Helium; Humans; Male; Oxygen; Respiration, Artificial; Sensitivity and Specificity; Severity of Illness Index | 2001 |
12 trial(s) available for helium and Sensitivity and Specificity
Article | Year |
---|---|
Hyperpolarized (3) He and (129) Xe MRI: differences in asthma before bronchodilation.
Topics: Administration, Inhalation; Adolescent; Adult; Albuterol; Asthma; Bronchodilator Agents; Contrast Media; Female; Helium; Humans; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Treatment Outcome; Xenon Isotopes; Young Adult | 2013 |
Ventilation heterogeneity in ex-smokers without airflow limitation.
Topics: Aged; Emphysema; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Magnetic Resonance Imaging; Male; Pulmonary Disease, Chronic Obstructive; Pulmonary Ventilation; Radiopharmaceuticals; Reference Values; Reproducibility of Results; Sensitivity and Specificity; Smoking; Smoking Cessation | 2015 |
An image acquisition and registration strategy for the fusion of hyperpolarized helium-3 MRI and x-ray CT images of the lung.
Topics: Carcinoma, Non-Small-Cell Lung; Helium; Humans; Image Processing, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Radiotherapy Planning, Computer-Assisted; Respiration; Sensitivity and Specificity; Tomography, X-Ray Computed | 2008 |
Detection of longitudinal lung structural and functional changes after diagnosis of radiation-induced lung injury using hyperpolarized 3He magnetic resonance imaging.
Topics: Administration, Inhalation; Aged; Contrast Media; Female; Helium; Humans; Image Enhancement; Isotopes; Lung; Lung Injury; Magnetic Resonance Imaging; Male; Middle Aged; Radiation Injuries; Radiopharmaceuticals; Radiotherapy, Conformal; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Hyperpolarized 3He and 129Xe MR imaging in healthy volunteers and patients with chronic obstructive pulmonary disease.
Topics: Administration, Inhalation; Aerosols; Aged; Contrast Media; Female; Helium; Humans; Isotopes; Magnetic Resonance Imaging; Male; Pulmonary Disease, Chronic Obstructive; Reproducibility of Results; Sensitivity and Specificity; Static Electricity; Xenon Isotopes | 2012 |
Hyperpolarized 3He lung ventilation imaging with B1-inhomogeneity correction in a single breath-hold scan.
Topics: Administration, Inhalation; Adolescent; Adult; Child; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Pulmonary Ventilation; Reproducibility of Results; Sensitivity and Specificity | 2004 |
Hyperpolarized 3He MRI and 81mKr SPECT in chronic obstructive pulmonary disease.
Topics: Administration, Inhalation; Contrast Media; Female; Helium; Humans; Krypton Radioisotopes; Magnetic Resonance Imaging; Male; Middle Aged; Pulmonary Disease, Chronic Obstructive; Radiopharmaceuticals; Reproducibility of Results; Respiratory Function Tests; Sensitivity and Specificity; Statistics as Topic; Tissue Distribution; Tomography, Emission-Computed, Single-Photon | 2005 |
[Visual assessment of functional lungs parenchyma on HRCT and (3)He-MRI in patients after single lung transplantation: comparison with quantitative volumetric results].
Topics: Emphysema; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Lung Transplantation; Magnetic Resonance Imaging; Male; Middle Aged; Observer Variation; Pulmonary Fibrosis; Radiographic Image Enhancement; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Tomography, X-Ray Computed; Treatment Outcome | 2005 |
Modification of the open circuit N2 washout technique for measurement of functional residual capacity in premature infants.
Topics: Calibration; Female; Functional Residual Capacity; Helium; Humans; Hypoxia; Infant; Infant, Newborn; Infant, Premature; Linear Models; Male; Models, Anatomic; Nitrogen; Oxygen; Positive-Pressure Respiration; Pulmonary Gas Exchange; Reproducibility of Results; Respiratory Distress Syndrome, Newborn; Respiratory Function Tests; Sensitivity and Specificity | 1997 |
Comparison of helium dilution and plethysmographic lung volumes in pregnant women.
Topics: Adult; Analysis of Variance; Female; Helium; Humans; Lung Volume Measurements; Plethysmography; Pregnancy; Respiratory Function Tests; Respiratory Physiological Phenomena; Sensitivity and Specificity | 1997 |
Influence of gas density on simulated snoring.
Topics: Adult; Air Pressure; Airway Resistance; Analysis of Variance; Epiglottis; Female; Gases; Helium; Humans; Models, Biological; Oxygen; Reference Values; Respiratory Mechanics; Sensitivity and Specificity; Snoring; Statistics, Nonparametric; Sulfur Hexafluoride; Viscosity | 1999 |
A pilot study of autofluorescent endoscopy for the in vivo detection of laryngeal cancer.
Topics: Adult; Aged; Aged, 80 and over; Biopsy; Cadmium; False Positive Reactions; Female; Fluorescence; Helium; Humans; Image Processing, Computer-Assisted; Laryngeal Edema; Laryngeal Neoplasms; Laryngitis; Laryngoscopy; Larynx; Lasers; Light; Male; Microscopy; Middle Aged; Pilot Projects; Prospective Studies; Sensitivity and Specificity | 2000 |
106 other study(ies) available for helium and Sensitivity and Specificity
Article | Year |
---|---|
Imaging Collateral Ventilation in Patients With Advanced Chronic Obstructive Pulmonary Disease: Relative Sensitivity of
Topics: Bronchoscopy; Endoscopy; Female; Helium; Humans; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Pulmonary Disease, Chronic Obstructive; Pulmonary Ventilation; Retrospective Studies; Sensitivity and Specificity; Tomography, X-Ray Computed; Xenon Isotopes | 2019 |
[Study on the significance of intravoxel incoherent motion quantitative index combined with time-signal intensity curve in the early diagnosis of residual lesions in non-small cell lung cancer after argon-helium cryosurgery].
Topics: Argon; Carcinoma, Non-Small-Cell Lung; Contrast Media; Cryosurgery; Diffusion Magnetic Resonance Imaging; Early Detection of Cancer; Helium; Humans; Lung Neoplasms; Neoplasm, Residual; Reproducibility of Results; ROC Curve; Sensitivity and Specificity | 2018 |
Pulsed discharge helium ionization detector with multiple combined bias/collecting electrodes for gas chromatography.
Topics: Alcohols; Calibration; Chromatography, Gas; Electrodes; Equipment Design; Helium; Sensitivity and Specificity; Temperature | 2013 |
Comparison of hyperpolarized (3)He and (129)Xe MRI for the measurement of absolute ventilated lung volume in rats.
Topics: Administration, Inhalation; Animals; Helium; Image Enhancement; Isotopes; Lung; Lung Volume Measurements; Magnetic Resonance Imaging; Radiopharmaceuticals; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Sensitivity and Specificity; Xenon Isotopes | 2014 |
(3)He pO2 mapping is limited by delayed-ventilation and diffusion in chronic obstructive pulmonary disease.
Topics: Administration, Inhalation; Adult; Aged; Breath Holding; Contrast Media; Diffusion; Female; Helium; Humans; Imaging, Three-Dimensional; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Oximetry; Oxygen; Pulmonary Disease, Chronic Obstructive; Pulmonary Gas Exchange; Pulmonary Ventilation; Reproducibility of Results; Sensitivity and Specificity | 2014 |
Regional alveolar partial pressure of oxygen measurement with parallel accelerated hyperpolarized gas MRI.
Topics: Adult; Contrast Media; Female; Helium; Humans; Isotopes; Magnetic Resonance Imaging; Male; Middle Aged; Oximetry; Oxygen; Phantoms, Imaging; Pulmonary Alveoli; Pulmonary Disease, Chronic Obstructive; Pulmonary Gas Exchange; Reproducibility of Results; Sensitivity and Specificity; Smoking | 2013 |
Phase-contrast velocity mapping for highly diffusive fluids: optimal bipolar gradient pulse parameters for hyperpolarized helium-3.
Topics: Algorithms; Contrast Media; Diffusion; Helium; Image Interpretation, Computer-Assisted; Isotopes; Magnetic Resonance Imaging; Radiopharmaceuticals; Reproducibility of Results; Rheology; Sensitivity and Specificity | 2014 |
Hyperpolarized (3)He diffusion MRI and histology of secreted frizzled related protein-1 (SFRP1) deficient lungs in a Murine model.
Topics: Administration, Inhalation; Animals; Diffusion Magnetic Resonance Imaging; Disease Models, Animal; Emphysema; Feasibility Studies; Helium; Intercellular Signaling Peptides and Proteins; Isotopes; Lung; Membrane Proteins; Mice, Knockout; Reproducibility of Results; Sensitivity and Specificity | 2014 |
In vivo lung morphometry with hyperpolarized (3) He diffusion MRI: reproducibility and the role of diffusion-sensitizing gradient direction.
Topics: Administration, Inhalation; Adult; Algorithms; Contrast Media; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Male; Middle Aged; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Young Adult | 2015 |
In vivo lung morphometry with accelerated hyperpolarized (3) He diffusion MRI: a preliminary study.
Topics: Administration, Inhalation; Adult; Aged; Algorithms; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Pilot Projects; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Young Adult | 2015 |
Pulmonary functional magnetic resonance imaging: asthma temporal-spatial maps.
Topics: Adolescent; Adult; Asthma; Contrast Media; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Pulmonary Gas Exchange; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Spatio-Temporal Analysis; Young Adult | 2014 |
Regional anisotropy of airspace orientation in the lung as assessed with hyperpolarized helium-3 diffusion MRI.
Topics: Adult; Anisotropy; Computer Simulation; Contrast Media; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Fields; Male; Models, Biological; Radiopharmaceuticals; Reference Values; Reproducibility of Results; Sensitivity and Specificity | 2015 |
Multibreath alveolar oxygen tension imaging.
Topics: Administration, Inhalation; Adult; Helium; Humans; Isotopes; Magnetic Resonance Imaging; Male; Middle Aged; Molecular Imaging; Oxygen; Oxygen Consumption; Pulmonary Alveoli; Pulmonary Gas Exchange; Radiopharmaceuticals; Reproducibility of Results; Respiratory Function Tests; Respiratory Mechanics; Sensitivity and Specificity | 2016 |
Validity of apparent diffusion coefficient hyperpolarized 3He-MRI using MSCT and pulmonary function tests as references.
Topics: Contrast Media; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Isotopes; Male; Middle Aged; Pulmonary Emphysema; Radiopharmaceuticals; Reproducibility of Results; Respiratory Function Tests; Sensitivity and Specificity; Tomography, X-Ray Computed | 2009 |
Asymmetric quadrature split birdcage coil for hyperpolarized 3He lung MRI at 1.5T.
Topics: Computer-Aided Design; Contrast Media; Equipment Design; Equipment Failure Analysis; Helium; Humans; Image Enhancement; Isotopes; Lung; Magnetic Resonance Imaging; Magnetics; Phantoms, Imaging; Reproducibility of Results; Sensitivity and Specificity; Transducers | 2008 |
Unwanted birefringence in low-temperature windows.
Topics: Artifacts; Birefringence; Cold Temperature; Helium; Materials Testing; Refractometry; Refrigeration; Reproducibility of Results; Sensitivity and Specificity; Specimen Handling; Vacuum | 1978 |
Hyperpolarized 3He magnetic resonance imaging of chronic obstructive pulmonary disease: reproducibility at 3.0 tesla.
Topics: Aged; Contrast Media; Female; Helium; Humans; Isotopes; Lung; Magnetic Resonance Imaging; Male; Pulmonary Disease, Chronic Obstructive; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2008 |
Functional CT in a rabbit model: evaluation of the perfusion characteristics before and after Ar-He cryoablation therapy.
Topics: Animals; Argon; Cryosurgery; Disease Models, Animal; Helium; Liver Neoplasms; Perfusion Imaging; Prognosis; Rabbits; Reproducibility of Results; Sensitivity and Specificity; Tomography, X-Ray Computed; Treatment Outcome | 2008 |
Detection of 3He spins with ultra-low field nuclear magnetic resonance employing SQUIDs for application to a neutron electric dipole moment experiment.
Topics: Algorithms; Electromagnetic Fields; Helium; Isotopes; Magnetic Resonance Spectroscopy; Neutrons; Reproducibility of Results; Sensitivity and Specificity; Spin Labels | 2008 |
Long-range diffusion of hyperpolarized 3He in rats.
Topics: Algorithms; Animals; Contrast Media; Diffusion; Diffusion Magnetic Resonance Imaging; Helium; Image Enhancement; Image Interpretation, Computer-Assisted; Ions; Isotopes; Lung; Male; Radiopharmaceuticals; Rats; Rats, Wistar; Reproducibility of Results; Sensitivity and Specificity | 2009 |
Simultaneous measurement of pulmonary partial pressure of oxygen and apparent diffusion coefficient by hyperpolarized 3He MRI.
Topics: Animals; Contrast Media; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Lung; Middle Aged; Oxygen; Phantoms, Imaging; Pulmonary Disease, Chronic Obstructive; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Swine | 2009 |
Assessment of in vitro vs. in vivo lung structure using hyperpolarized helium-3 diffusion magnetic resonance imaging.
Topics: Administration, Inhalation; Animals; Contrast Media; Diffusion Magnetic Resonance Imaging; Helium; Isotopes; Lung; Rabbits; Reproducibility of Results; Sensitivity and Specificity | 2009 |
Progression of emphysema in a 12-month hyperpolarized 3He-MRI study: lacunarity analysis provided a more sensitive measure than standard ADC analysis.
Topics: Administration, Inhalation; Adult; Aged; Contrast Media; Emphysema; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Magnetic Resonance Imaging; Male; Middle Aged; Reproducibility of Results; Sensitivity and Specificity | 2009 |
A tunable channel waveguide array fabricated by the implantations of He+ ions in an electrooptical KLTN substrate.
Topics: Computer-Aided Design; Electronics; Equipment Design; Equipment Failure Analysis; Helium; Ions; Lithium; Optical Devices; Potassium; Refractometry; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Titanium | 2009 |
Three-dimensional imaging of ventilation dynamics in asthmatics using multiecho projection acquisition with constrained reconstruction.
Topics: Adult; Algorithms; Asthma; Contrast Media; Echo-Planar Imaging; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Isotopes; Male; Middle Aged; Pulmonary Gas Exchange; Reproducibility of Results; Sensitivity and Specificity; Young Adult | 2009 |
Improved technique for measurement of regional fractional ventilation by hyperpolarized 3He MRI.
Topics: Algorithms; Animals; Helium; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Oxygen; Oxygen Consumption; Pulmonary Ventilation; Radiopharmaceuticals; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Sensitivity and Specificity; Tissue Distribution | 2010 |
Measurements of magnetic field stability in inhomogeneous magnetic fields at low temperature.
Topics: Anisotropy; Cold Temperature; Electromagnetic Fields; Equipment Design; Equipment Failure Analysis; Helium; Magnetic Resonance Spectroscopy; Radiometry; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Solutions | 2010 |
On the use of hyperpolarized helium MRI for conformal avoidance lung radiotherapy.
Topics: Helium; Humans; Isotopes; Lung; Lung Injury; Magnetic Resonance Imaging; Pulmonary Gas Exchange; Radiation Injuries; Radiation Protection; Radiopharmaceuticals; Radiotherapy, Conformal; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Helium-3 MR q-space imaging with radial acquisition and iterative highly constrained back-projection.
Topics: Administration, Inhalation; Algorithms; Contrast Media; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Phantoms, Imaging; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Design and evaluation of a 32-channel phased-array coil for lung imaging with hyperpolarized 3-helium.
Topics: Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Helium; Humans; Image Enhancement; Isotopes; Lung; Magnetic Resonance Imaging; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Transducers | 2010 |
Ventilation/perfusion imaging in a rat model of airway obstruction.
Topics: Administration, Inhalation; Airway Obstruction; Algorithms; Animals; Disease Models, Animal; Female; Helium; Humans; Image Enhancement; Isotopes; Magnetic Resonance Imaging; Perfusion Imaging; Rats; Rats, Inbred F344; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Quantitative analysis of hyperpolarized 3He ventilation changes in mice challenged with methacholine.
Topics: Administration, Inhalation; Algorithms; Animals; Asthma; Contrast Media; Helium; Image Enhancement; Isotopes; Magnetic Resonance Imaging; Methacholine Chloride; Mice; Mice, Inbred C57BL; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Hyperpolarized 3He MR for sensitive imaging of ventilation function and treatment efficiency in young cystic fibrosis patients with normal lung function.
Topics: Administration, Inhalation; Adolescent; Airway Obstruction; Child; Cystic Fibrosis; Female; Helium; Humans; Isotopes; Magnetic Resonance Imaging; Male; Pulmonary Ventilation; Reproducibility of Results; Respiratory Function Tests; Respiratory Therapy; Sensitivity and Specificity; Statistics, Nonparametric; Treatment Outcome | 2010 |
Experimental investigation and numerical simulation of 3He gas diffusion in simple geometries: implications for analytical models of 3He MR lung morphometry.
Topics: Computer Simulation; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Models, Biological; Phantoms, Imaging; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Pulmonary kinematics from tagged hyperpolarized helium-3 MRI.
Topics: Administration, Inhalation; Contrast Media; Female; Helium; Humans; Isotopes; Lung; Magnetic Resonance Imaging; Male; Reproducibility of Results; Respiratory Function Tests; Sensitivity and Specificity | 2010 |
A high-performance, safer and semi-automated approach for the delta18O analysis of diatom silica and new methods for removing exchangeable oxygen.
Topics: Automation, Laboratory; Desiccation; Diatoms; Helium; Ion Exchange; Oxygen Isotopes; Paleontology; Quartz; Reproducibility of Results; Sensitivity and Specificity; Silicon Dioxide | 2010 |
Regional correlation of emphysematous changes in lung function and structure: a comparison between pulmonary function testing and hyperpolarized MRI metrics.
Topics: Animals; Contrast Media; Emphysema; Helium; Isotopes; Lung; Magnetic Resonance Imaging; Male; Radiopharmaceuticals; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Respiratory Function Tests; Sensitivity and Specificity | 2011 |
Quantitative assessment of lung ventilation and microstructure in an animal model of idiopathic pulmonary fibrosis using hyperpolarized gas MRI.
Topics: Animals; Disease Models, Animal; Helium; Humans; Idiopathic Pulmonary Fibrosis; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Pulmonary Ventilation; Radiopharmaceuticals; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Sensitivity and Specificity | 2010 |
Surface swabbing technique for the rapid screening for pesticides using ambient pressure desorption ionization with high-resolution mass spectrometry.
Topics: Chromatography, High Pressure Liquid; Fruit; Helium; Mass Spectrometry; Pesticide Residues; Sensitivity and Specificity; Specimen Handling; Temperature | 2011 |
Imaging lung microstructure in mice with hyperpolarized 3He diffusion MRI.
Topics: Administration, Inhalation; Animals; Contrast Media; Diffusion Magnetic Resonance Imaging; Female; Helium; Isotopes; Lung; Mice; Mice, Inbred C57BL; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2011 |
Combined measurement of pulmonary inert gas washout and regional ventilation heterogeneity by MR of a single dose of hyperpolarized 3He.
Topics: Adult; Contrast Media; Female; Helium; Humans; Image Enhancement; Isotopes; Lung; Magnetic Resonance Imaging; Male; Metabolic Clearance Rate; Pulmonary Ventilation; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2011 |
Three-dimensional mapping of the B1 field using an optimized phase-based method: application to hyperpolarized 3He in lungs.
Topics: Algorithms; Contrast Media; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2011 |
A flexible 32-channel receive array combined with a homogeneous transmit coil for human lung imaging with hyperpolarized 3He at 1.5 T.
Topics: Administration, Inhalation; Adult; Contrast Media; Equipment Design; Equipment Failure Analysis; Female; Helium; Humans; Image Enhancement; Isotopes; Lung; Magnetic Resonance Imaging; Magnetics; Male; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Transducers | 2011 |
Ventilation-based segmentation of the lungs using hyperpolarized (3)He MRI.
Topics: Administration, Inhalation; Asthma; Automation; Case-Control Studies; Cystic Fibrosis; Female; Helium; Humans; Image Processing, Computer-Assisted; Lung; Magnetic Resonance Imaging; Male; Pulmonary Gas Exchange; Pulmonary Ventilation; Sensitivity and Specificity | 2011 |
Alveolarization continues during childhood and adolescence: new evidence from helium-3 magnetic resonance.
Topics: Adolescent; Child; Confidence Intervals; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Lung; Male; Plethysmography; Pulmonary Alveoli; Reproducibility of Results; Sensitivity and Specificity; Spirometry; Young Adult | 2012 |
Variable flip angle schedules in bSSFP imaging of hyperpolarized noble gases.
Topics: Adult; Algorithms; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2012 |
Dynamic ventilation 3He MRI for the quantification of disease in the rat lung.
Topics: Animals; Diffusion Magnetic Resonance Imaging; Disease Models, Animal; Female; Helium; Isotopes; Pancreatic Elastase; Pulmonary Emphysema; Rats; Rats, Wistar; Sensitivity and Specificity | 2012 |
Monitoring in vivo changes in lung microstructure with ³He MRI in Sendai virus-infected mice.
Topics: Animals; Diffusion Magnetic Resonance Imaging; Disease Models, Animal; Helium; Isotopes; Lung; Lung Volume Measurements; Mice; Mice, Inbred C57BL; Predictive Value of Tests; Pulmonary Alveoli; Pulmonary Disease, Chronic Obstructive; Respirovirus Infections; Sendai virus; Sensitivity and Specificity; Time Factors | 2012 |
Incorporation of prior knowledge in compressed sensing for faster acquisition of hyperpolarized gas images.
Topics: Adult; Algorithms; Contrast Media; Data Compression; Female; Gases; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2013 |
Systematic measurement of lineal energy distributions for proton, He and Si ion beams over a wide energy range using a wall-less tissue equivalent proportional counter.
Topics: Biomimetic Materials; Equipment Design; Equipment Failure Analysis; Heavy Ions; Helium; Linear Energy Transfer; Protons; Radiometry; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Silicon | 2012 |
Exploring key parameters to detect subtle ligand-induced protein conformational changes using traveling wave ion mobility mass spectrometry.
Topics: Amino Acid Sequence; bcl-X Protein; Biphenyl Compounds; Crystallography, X-Ray; Helium; Humans; Ions; Ligands; Mass Spectrometry; Molecular Sequence Data; Nitrogen; Nitrophenols; Piperazines; Protein Conformation; Recombinant Fusion Proteins; Sensitivity and Specificity; Sequence Alignment; Sulfonamides | 2012 |
Quantitative (1)H and hyperpolarized (3)He magnetic resonance imaging: comparison in chronic obstructive pulmonary disease and healthy never-smokers.
Topics: Aged; Contrast Media; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Magnetic Resonance Imaging; Male; Middle Aged; Protons; Pulmonary Disease, Chronic Obstructive; Pulmonary Emphysema; Reference Values; Reproducibility of Results; Respiratory Function Tests; Sensitivity and Specificity; Smoking; Static Electricity | 2014 |
Feasibility study of a plasma display-like radiation detector for X-ray imaging.
Topics: Computer Simulation; Electricity; Equipment Design; Feasibility Studies; Helium; Linear Models; Plasma Gases; Radiographic Image Enhancement; Sensitivity and Specificity; X-Rays; Xenon | 2012 |
Improved gas chromatography-tandem mass spectrometry determination of pesticide residues making use of atmospheric pressure chemical ionization.
Topics: Atmospheric Pressure; Fruit; Gas Chromatography-Mass Spectrometry; Helium; Pesticide Residues; Reproducibility of Results; Sensitivity and Specificity; Tandem Mass Spectrometry; Vegetables | 2012 |
Hyperpolarized helium-3 magnetic resonance imaging of chronic obstructive pulmonary disease exacerbation.
Topics: Administration, Inhalation; Aged; Contrast Media; Disease Progression; Female; Helium; Humans; Isotopes; Longitudinal Studies; Lung; Magnetic Resonance Imaging; Male; Pulmonary Disease, Chronic Obstructive; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Severity of Illness Index | 2013 |
Highly sensitive measurement of whole blood chromium by inductively coupled plasma mass spectrometry.
Topics: Adult; Chromium; Clinical Chemistry Tests; Fasting; Female; Helium; Humans; Male; Mass Spectrometry; Middle Aged; Reference Standards; Reproducibility of Results; Sensitivity and Specificity; Young Adult | 2013 |
A variability study of regional alveolar oxygen tension measurement in humans using hyperpolarized (3) He MRI.
Topics: Contrast Media; Female; Helium; Humans; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Middle Aged; Oximetry; Oxygen; Oxygen Consumption; Pulmonary Gas Exchange; Reproducibility of Results; Sensitivity and Specificity; Smoking; Tissue Distribution | 2013 |
Accelerated fractional ventilation imaging with hyperpolarized Gas MRI.
Topics: Algorithms; Animals; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Magnetic Resonance Imaging; Pulmonary Ventilation; Radioisotopes; Reproducibility of Results; Sensitivity and Specificity; Swine | 2013 |
Hyperpolarized helium3 encapsulated in microbubbles: a new class of blood pool MRI contrast agent.
Topics: Animals; Contrast Media; Coronary Circulation; Helium; Isotopes; Lung; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Microspheres; Phospholipids; Polyethylene Glycols; Rats; Sensitivity and Specificity; Swine | 2002 |
Quantitative measurement of regional lung ventilation using 3He MRI.
Topics: Animals; Guinea Pigs; Helium; Image Processing, Computer-Assisted; Isotopes; Magnetic Resonance Imaging; Male; Pulmonary Gas Exchange; Pulmonary Ventilation; Sensitivity and Specificity | 2002 |
The use of static pressures of heavy gases within a quadrupole ion trap.
Topics: Argon; Buffers; Chemical Phenomena; Chemistry, Physical; Enkephalin, Leucine; Gases; Helium; Mass Spectrometry; Pressure; Sensitivity and Specificity | 2003 |
(3)He-MRI in follow-up of lung transplant recipients.
Topics: Adult; Bronchiolitis Obliterans; Female; Graft Rejection; Graft Survival; Helium; Humans; Image Interpretation, Computer-Assisted; Lung Transplantation; Magnetic Resonance Imaging; Male; Middle Aged; Monitoring, Physiologic; Postoperative Care; Prognosis; Radiographic Image Enhancement; Respiratory Function Tests; Retrospective Studies; Risk Assessment; Sensitivity and Specificity; Severity of Illness Index | 2004 |
Pneumothorax during laparoscopy.
Topics: Absorption; Animals; Carbon Dioxide; Diffusion; Electrocardiography; Female; Fluoroscopy; Helium; Hypercapnia; Intraoperative Complications; Laparoscopy; Pneumoperitoneum, Artificial; Pneumothorax; Sensitivity and Specificity; Sheep; Suction | 2003 |
Evaluation of the pulsed discharge helium ionization detector for the analysis of hydrogen and methane in breath.
Topics: Breath Tests; Helium; Humans; Hydrogen; Methane; Reproducibility of Results; Sensitivity and Specificity | 2004 |
Investigating 3He diffusion NMR in the lungs using finite difference simulations and in vivo PGSE experiments.
Topics: Adult; Algorithms; Computer Simulation; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Isotopes; Lung; Male; Middle Aged; Models, Biological; Nuclear Magnetic Resonance, Biomolecular; Numerical Analysis, Computer-Assisted; Pulmonary Gas Exchange; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity; Smoking | 2004 |
Effect of heliox breathing on dynamic hyperinflation in COPD patients.
Topics: Aged; Airway Resistance; Albuterol; Bronchodilator Agents; Female; Helium; Humans; Inspiratory Capacity; Male; Oxygen; Posture; Probability; Prospective Studies; Pulmonary Disease, Chronic Obstructive; Pulmonary Gas Exchange; Respiration; Sensitivity and Specificity; Severity of Illness Index; Spirometry; Tidal Volume | 2004 |
Arc process parameters for single-walled carbon nanotube growth and production: experiments and modeling.
Topics: Argon; Carbon; Electrodes; Fullerenes; Helium; Kinetics; Microscopy, Electron, Scanning; Models, Statistical; Models, Theoretical; Nanotechnology; Nanotubes; Nanotubes, Carbon; Normal Distribution; Pressure; Sensitivity and Specificity; Time Factors | 2004 |
A double plasma gas chromatography injector and detector.
Topics: Chemical Phenomena; Chemistry, Physical; Chloroform; Chromatography, Gas; Equipment Design; Helium; Ions; Methylene Chloride; Sensitivity and Specificity; Time Factors | 2004 |
Quantification of airway diameters and 3D airway tree rendering from dynamic hyperpolarized 3He magnetic resonance imaging.
Topics: Administration, Inhalation; Aerosols; Anatomy, Cross-Sectional; Bronchi; Computer Simulation; Contrast Media; Helium; Humans; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Magnetic Resonance Imaging; Models, Biological; Reproducibility of Results; Sensitivity and Specificity | 2005 |
Feasibility of combining MR perfusion, angiography, and 3He ventilation imaging for evaluation of lung function in a porcine model.
Topics: Administration, Inhalation; Airway Obstruction; Animals; Contrast Media; Disease Models, Animal; Feasibility Studies; Gadolinium DTPA; Helium; Image Processing, Computer-Assisted; Imaging, Three-Dimensional; Isotopes; Magnetic Resonance Angiography; Magnetic Resonance Imaging; Observer Variation; Pulmonary Embolism; Reproducibility of Results; Sensitivity and Specificity; Swine | 2005 |
Increasing the accuracy of determination of nc/nH ratios by gas chromatography-atomic emission detection.
Topics: Alkanes; Chromatography, Gas; Helium; Hydrocarbons; Oxygen; Polychlorinated Biphenyls; Reference Standards; Sensitivity and Specificity; Spectrophotometry, Atomic | 2005 |
Magnetic susceptibility matching at the air-tissue interface in rat lung by using a superparamagnetic intravascular contrast agent: influence on transverse relaxation time of hyperpolarized helium-3.
Topics: Administration, Inhalation; Air; Algorithms; Animals; Contrast Media; Dextrans; Dose-Response Relationship, Drug; Ferrosoferric Oxide; Helium; Image Enhancement; Injections, Intravenous; Iron; Isotopes; Lung; Magnetic Resonance Imaging; Magnetite Nanoparticles; Male; Oxides; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Sensitivity and Specificity; Surface Properties | 2005 |
[Hyperpolarized (3)helium gas for functional magnetic resonance imaging of the lung].
Topics: Administration, Inhalation; Contrast Media; Helium; Humans; Image Enhancement; Image Processing, Computer-Assisted; Isotopes; Lung Diseases; Magnetic Resonance Imaging; Oxygen; Pulmonary Diffusing Capacity; Pulmonary Disease, Chronic Obstructive; Pulmonary Gas Exchange; Reference Values; Sensitivity and Specificity; Smoking; Ventilation-Perfusion Ratio | 2005 |
Multiple isomers of uracil-water complexes: infrared spectroscopy in helium nanodroplets.
Topics: Cold Temperature; Helium; Models, Chemical; Nanotubes; Sensitivity and Specificity; Spectrophotometry, Infrared; Uracil; Vibration; Water | 2005 |
Advantages of parallel imaging in conjunction with hyperpolarized helium--a new approach to MRI of the lung.
Topics: Administration, Inhalation; Algorithms; Computing Methodologies; Equipment Design; Equipment Failure Analysis; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Information Storage and Retrieval; Lung; Magnetic Resonance Imaging; Reproducibility of Results; Sensitivity and Specificity | 2006 |
The effect of incomplete acetylene washout on cardiac output measurement using open circuit acetylene uptake.
Topics: Acetylene; Adult; Analysis of Variance; Cardiac Output; Exercise; Female; Helium; Humans; Male; Pulmonary Gas Exchange; Sensitivity and Specificity | 2007 |
In vivo lung morphometry with hyperpolarized 3He diffusion MRI in canines with induced emphysema: disease progression and comparison with computed tomography.
Topics: Animals; Diffusion Magnetic Resonance Imaging; Disease Progression; Dogs; Helium; Isotopes; Lung; Mathematics; Pancreatic Elastase; Pulmonary Emphysema; Sensitivity and Specificity; Tomography, X-Ray Computed | 2007 |
Determination of cadmium in oyster tissue using isotope dilution inductively coupled plasma mass spectrometry: comparison of results obtained in the standard and He/H2 cell modes.
Topics: Animals; Cadmium; Helium; Hydrogen; Isotope Labeling; Mass Spectrometry; Molybdenum; Ostreidae; Reproducibility of Results; Sensitivity and Specificity; Zirconium | 2006 |
Diffusional kurtosis imaging in the lung using hyperpolarized 3He.
Topics: Artifacts; Diffusion Magnetic Resonance Imaging; Helium; Humans; Isotopes; Lung; Lung Diseases, Obstructive; Pulmonary Ventilation; Sensitivity and Specificity | 2006 |
MR imaging of mouse lung using hyperpolarized 3He: image acquisition and T1 estimation under spontaneous respiration.
Topics: Animals; Artificial Intelligence; Helium; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Male; Mice; Models, Animal; Oxygen; Partial Pressure; Pulmonary Circulation; Pulmonary Diffusing Capacity; Regional Blood Flow; Respiratory Mechanics; Sensitivity and Specificity; Signal Processing, Computer-Assisted | 2006 |
Hyperpolarized 3He diffusion MRI and histology in pulmonary emphysema.
Topics: Administration, Inhalation; Contrast Media; Diffusion Magnetic Resonance Imaging; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; In Vitro Techniques; Isotopes; Lung; Pulmonary Emphysema; Reproducibility of Results; Sensitivity and Specificity | 2006 |
Controlling diffusion of 3He by buffer gases: a structural contrast agent in lung MRI.
Topics: Contrast Media; Diffusion Magnetic Resonance Imaging; Gases; Helium; Humans; Image Enhancement; Isotopes; Lung; Phantoms, Imaging; Reproducibility of Results; Sensitivity and Specificity | 2006 |
Assessment of lung development using hyperpolarized helium-3 diffusion MR imaging.
Topics: Adolescent; Adult; Algorithms; Child; Child, Preschool; Diffusion Magnetic Resonance Imaging; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Isotopes; Lung; Male; Radiopharmaceuticals; Reproducibility of Results; Sensitivity and Specificity | 2006 |
The effects of SNR on ADC measurements in diffusion-weighted hyperpolarized He-3 MRI.
Topics: Artifacts; Diffusion Magnetic Resonance Imaging; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Pulmonary Gas Exchange; Radioisotopes; Reproducibility of Results; Sensitivity and Specificity | 2007 |
Radiation-damping effects in a birdcage resonator with hyperpolarised 3He gas NMR at 1.5 T.
Topics: Artifacts; Equipment Design; Equipment Failure Analysis; Gases; Helium; Isotopes; Radiation Dosage; Radiometry; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Transducers | 2007 |
Efficiencies of state and velocity-changing collisions of superthermal CN A(2)Pi with He, Ar, N(2) and O(2).
Topics: Argon; Cyanides; Free Radicals; Helium; Nitrogen; Oxygen; Quantum Theory; Sensitivity and Specificity; Spectrophotometry; Time Factors | 2007 |
Direct measurement of lung motion using hyperpolarized helium-3 MR tagging.
Topics: Administration, Inhalation; Adult; Contrast Media; Female; Helium; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Isotopes; Lung; Magnetic Resonance Imaging; Male; Movement; Radiopharmaceuticals; Respiratory Mechanics; Sensitivity and Specificity | 2007 |
Analysis of trace amounts of carbon dioxide, oxygen and carbon monoxide in nitrogen using dual capillary columns and a pulsed discharge helium ionisation detector.
Topics: Carbon Dioxide; Carbon Monoxide; Chromatography, Gas; Chromatography, Gel; Electrophoresis, Capillary; Helium; Nitrogen; Oxygen; Oxygen Inhalation Therapy; Sensitivity and Specificity; Temperature | 2007 |
Functional residual capacity (FRC) measurements by plethysmography and helium dilution in normal infants.
Topics: Age Factors; Anthropometry; Child, Preschool; Female; Functional Residual Capacity; Helium; Humans; Infant; Infant, Newborn; Lung Volume Measurements; Male; Plethysmography; Reference Values; Sensitivity and Specificity | 1995 |
A new ventilation inhomogeneity index from multiple breath indicator gas washout tests in mechanically ventilated patients.
Topics: Adult; Aged; Body Height; Breath Tests; Female; Helium; Humans; Lung Diseases, Obstructive; Lung Volume Measurements; Male; Mass Spectrometry; Middle Aged; Prospective Studies; Pulmonary Gas Exchange; Reproducibility of Results; Respiration, Artificial; Sensitivity and Specificity; Severity of Illness Index; Vital Capacity | 1993 |
Laser Doppler perfusion imaging of skin blood flow using red and near-infrared sources.
Topics: Adult; Animals; Female; Helium; Humans; Laser-Doppler Flowmetry; Male; Middle Aged; Neon; Rats; Rats, Wistar; Regional Blood Flow; Sensitivity and Specificity; Skin; Skin Pigmentation; Spectroscopy, Near-Infrared | 1996 |
Processor quality control in laser imaging systems.
Topics: Helium; Humans; Infrared Rays; Lasers; Models, Theoretical; Neon; Quality Control; Radiography; Sensitivity and Specificity; Thermodynamics; X-Ray Film | 1997 |
MR microscopy of lung airways with hyperpolarized 3He.
Topics: Animals; Disease Models, Animal; Guinea Pigs; Helium; Humans; Image Enhancement; Isotopes; Lung; Magnetic Resonance Imaging; Male; Microscopy; Middle Aged; Pulmonary Gas Exchange; Reference Values; Sensitivity and Specificity | 1998 |
MRI of hyperpolarized 3He gas in human paranasal sinuses.
Topics: Adult; Contrast Media; Helium; Humans; Image Processing, Computer-Assisted; Isotopes; Magnetic Resonance Imaging; Male; Nasal Cavity; Paranasal Sinuses; Pulmonary Ventilation; Reference Values; Sensitivity and Specificity | 1998 |
Hyperpolarized 3He NMR lineshape measurements in the live guinea pig lung.
Topics: Animals; Guinea Pigs; Helium; Isotopes; Lung; Magnetic Resonance Spectroscopy; Pulmonary Gas Exchange; Reference Values; Respiratory Mechanics; Sensitivity and Specificity | 1998 |
High-frequency respiratory input impedance measurements in infants assessed by the high speed interrupter technique.
Topics: Adult; Airway Resistance; Animals; Child, Preschool; Dogs; Female; Helium; Humans; Infant; Male; Pulmonary Ventilation; Recurrence; Respiratory Function Tests; Respiratory Sounds; Sensitivity and Specificity | 1998 |
Membrane inlet ion trap mass spectrometry for the direct measurement of dissolved gases in ecological samples.
Topics: Argon; Carbon Dioxide; Gases; Geologic Sediments; Helium; Mass Spectrometry; Nitrogen Oxides; Oxygen; Sensitivity and Specificity; Time Factors; Water | 1999 |
Comparison of two new methods for the measurement of lung volumes with two standard methods.
Topics: Adult; Airway Obstruction; Female; Forced Expiratory Volume; Helium; Humans; Lung; Lung Volume Measurements; Male; Middle Aged; Models, Biological; Nitrogen; Plethysmography; Sensitivity and Specificity; Vital Capacity | 1999 |
A high-temperature superconducting Helmholtz probe for microscopy at 9.4 T.
Topics: Algorithms; Aluminum Oxide; Animals; Artifacts; Cold Temperature; Copper; Equipment Design; Helium; Hot Temperature; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Mice; Microscopy; Phantoms, Imaging; Radio Waves; Ruthenium Compounds; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Thermal Conductivity | 1999 |
An improved heterodyne laser interferometer for use in studies of cochlear mechanics.
Topics: Animals; Basilar Membrane; Glass; Guinea Pigs; Hair Cells, Auditory; Helium; Interferometry; Lasers; Linear Models; Microscopy; Neon; Optics and Photonics; Sensitivity and Specificity; Tectorial Membrane | 1999 |
Development and characterization of chlorine-selective pulsed discharge emission detector for gas chromatography.
Topics: Chlorine; Chromatography, Gas; Helium; Sensitivity and Specificity; Spectrophotometry, Ultraviolet | 2000 |
WENDI: an improved neutron rem meter.
Topics: Borates; Calibration; Equipment Design; Fast Neutrons; Helium; Monte Carlo Method; Polyethylene; Power Plants; Radiometry; Rubber; Sensitivity and Specificity; Tungsten; Tungsten Compounds | 2000 |
Registered (1)H and (3)He magnetic resonance microscopy of the lung.
Topics: Animals; Anisotropy; Helium; Hydrogen; Image Enhancement; Image Processing, Computer-Assisted; Imaging, Three-Dimensional; Isotopes; Lung; Magnetic Resonance Imaging; Male; Microscopy; Rats; Rats, Inbred F344; Sensitivity and Specificity | 2001 |
[Dynamic imaging of the nasal cavity and the paranasal sinuses with polarized 3helium MRI].
Topics: Administration, Inhalation; Adult; Contrast Media; Female; Helium; Humans; Image Enhancement; Isotopes; Magnetic Resonance Imaging; Male; Nasal Cavity; Nasal Obstruction; Paranasal Sinuses; Pulmonary Ventilation; Sensitivity and Specificity; Sinusitis; Valsalva Maneuver | 2001 |
Inhaling gas with different CT densities allows detection of abnormalities in the lung periphery of patients with smoking-induced COPD.
Topics: Administration, Inhalation; Adult; Aged; Helium; Humans; Lung; Lung Volume Measurements; Male; Middle Aged; Oxygen Inhalation Therapy; Pulmonary Disease, Chronic Obstructive; Pulmonary Ventilation; Radiographic Image Enhancement; Reference Values; Sensitivity and Specificity; Smoking; Sulfur Hexafluoride; Tomography, X-Ray Computed | 2001 |
MRI in lung transplant recipients using hyperpolarized 3He: comparison with CT.
Topics: Adult; Female; Helium; Humans; Lung; Lung Transplantation; Magnetic Resonance Imaging; Male; Middle Aged; Pulmonary Ventilation; Sensitivity and Specificity; Tomography, X-Ray Computed | 2002 |