choline and Pituitary Neoplasms

choline has been researched along with Pituitary Neoplasms in 12 studies

Pituitary Neoplasms: Neoplasms which arise from or metastasize to the PITUITARY GLAND. The majority of pituitary neoplasms are adenomas, which are divided into non-secreting and secreting forms. Hormone producing forms are further classified by the type of hormone they secrete. Pituitary adenomas may also be characterized by their staining properties (see ADENOMA, BASOPHIL; ADENOMA, ACIDOPHIL; and ADENOMA, CHROMOPHOBE). Pituitary tumors may compress adjacent structures, including the HYPOTHALAMUS, several CRANIAL NERVES, and the OPTIC CHIASM. Chiasmal compression may result in bitemporal HEMIANOPSIA.

Research

Studies (12)

Authors

Clinical Trials (2)

Trial Overview

Trial Outcomes

Lesion Based Analysis of FEC-PET, Endorectal MRI and Combined FEC-PET/eMRI in All Patients

PET positive lesions (n=128) were measured on its own and evaluated as malignant just as hypointense lesions on MRI. In PET/MRI analysis, MRI suspect lesions without FEC uptake were considered not to be malignant. PET positive lesions in central periurethral zone with inhomogenous signal intensity and sharp edges on MRI images were also considered to be benign. PET positive lesions in the peripheral zone without a hypointense correlate on MRI were considered to be malignant. Sensitivity, specificity, accuracy, negative and positive predictive values were determined. (NCT00520546)
Timeframe: within < 2 weeks after PET/MRI

Lesion Based Analysis of FEC-PET, Endorectal MRI and Combined FEC-PET/eMRI in Patients With Gleason Score >6 (3+3)

PET positive lesions in patients with Gleason >6(3+3),n=43 were measured on its own and evaluated as malignant just as hypointense lesions on MRI. In PET/MRI analysis, MRI suspect lesions without FEC uptake were considered not to be malignant. PET positive lesions in central periurethral zone with inhomogenous signal intensity and sharp edges on MRI images were also considered to be benign. PET positive lesions in the peripheral zone without a hypointense correlate on MRI were considered to be malignant. Sensitivity, specificity, accuracy, negative & positive predictive values were determined. (NCT00520546)
Timeframe: within < 2 weeks after PET/MRI

Lesion Based Analysis of FEC-PET, Endorectal MRI and Combined FEC-PET/eMRI in Patients With Malignant Lesions >5mm (n=98)

PET positive lesions were measured on its own and evaluated as malignant just as hypointense lesions on MRI. In PET/MRI analysis, MRI suspect lesions without FEC uptake were considered not to be malignant. PET positive lesions in central periurethral zone with inhomogenous signal intensity and sharp edges on MRI images were also considered to be benign. PET positive lesions in the peripheral zone without a hypointense correlate on MRI were considered to be malignant. Sensitivity, specificity, accuracy, negative and positive predictive values were determined without malign lesions <=5mm. (NCT00520546)
Timeframe: within < 2 weeks after PET/MRI

Number of Participants With Positive or Negative Results in PET, MRI or PET/MRI for Prostate Cancer Compared to Histological Findings

PET positive lesions were measured on its own and evaluated as malignant just as hypointense lesions on MRI. In PET/MRI analysis, MRI suspect lesions without FEC uptake were considered not to be malignant. PET positive lesions in central periurethral zone with inhomogenous signal intensity and sharp edges on MRI images were also considered to be benign. PET positive lesions in the peripheral zone without a hypointense correlate on MRI were considered to be malignant. At least 1 histological confirmed cancer lesion has to be detected by each of the 3 methods to be patient based true positive. (NCT00520546)
Timeframe: within < 2 weeks after PET/MRI

Other Studies

12 other studies available for choline and Pituitary Neoplasms