iothalamate-meglumine and Carotid-Artery-Diseases

In vitro work with detachable latex balloons confirms that long term balloon inflation can be achieved. The short term osmotic effects of hypertonic and nearly isotonic radiographic contrast materials filling the balloons are negligible. Long term osmotic effects may be operative. The discrepancy between in vitro prolonged inflation and in vivo deflation cannot be due to the osmolarity of the balloon contents.

Topics: Aged; Arteriovenous Fistula; Carotid Artery Diseases; Carotid Artery, Internal; Cavernous Sinus; Embolization, Therapeutic; Female; Humans; Iothalamate Meglumine; Latex; Metrizamide; Neurosurgery; Osmolar Concentration

A dual digital memory recursive filtering system provides an effective alternative to digital subtraction imaging by using routine fluoroscopic equipment operated with slightly elevated fluoroscopic technical factors. This is accomplished with relatively inexpensive portable electronic equipment that can be connected to the video output of most modern fluoroscopic systems. Initial clinical experimental studies suggest that the system can produce diagnostic images comparable with pulsed fluoroscopic digital systems. The temporal filtering approach offers a real-time vascular imaging technique that requires no postprocessing and can be used either with arterial or intravenous injections of contrast materials.

Topics: Adult; Angiography; Carotid Artery Diseases; Filtration; Fluoroscopy; Humans; Injections, Intra-Arterial; Injections, Intravenous; Iothalamate Meglumine; Male; Middle Aged; Renal Artery; Subtraction Technique

Topics: Adolescent; Carotid Artery Diseases; Cerebellar Neoplasms; Cerebral Angiography; Child; Contrast Media; Geriatrics; Humans; Intracranial Aneurysm; Iothalamate Meglumine; Toxicology