RT Journal Article SR Electronic T1 Metrizamide shuntography for evaluation of shunt malfunction in hydrocephalus. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 815 OP 822 VO 6 IS 5 A1 M Mirfakhraee A1 E C Benzel A1 M J Crofford A1 F C Guinto A1 V L Giyanani A1 A J Gerlock A1 A Sadree YR 1985 UL http://www.ajnr.org/content/6/5/815.abstract AB Ventricular shunts were evaluated by a shuntographic technique using metrizamide for the contrast material and delayed spot films and computed tomography (CT) to evaluate shunt function. Thirty hydrocephalic patients were studied who had clinical presentations of shunt malfunction. Fifty-two shuntograms were obtained; most demonstrated the cause of shunt malfunction. No contrast-related complications resulted from the procedure. Diagnostic accuracy was greatly improved by this method, since both anatomic and functional evaluations could be performed. In patients with normal studies, unnecessary surgery was eliminated; in abnormal shuntograms, the duration of surgery and the likelihood of complications were reduced because the surgeons knew the exact anatomic derangements to be corrected.