Analysis of endoscopic third ventriculostomy patency by MRI: value of different pulse sequences, the sequence parameters, and the imaging planes for investigation of flow void.

Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery
Alp DinçerM Memet Özek

Abstract

The aim of the study is to evaluate the efficiency of turbo spin-echo (TSE), three-dimensional constructive interference in the steady state (3D CISS) and cine phase contrast (Cine PC) sequences in determining flow through the endoscopic third ventriculostomy (ETV) fenestration, and to determine the effect of various TSE sequence parameters. The study was approved by our institutional review board and informed consent from all patients was obtained. Two groups of patients were included: group I (24 patients with good clinical outcome after ETV) and group II (22 patients with hydrocephalus evaluated preoperatively). The imaging protocol for both groups was identical. TSE T2 with various sequence parameters and imaging planes, and 3D CISS, followed by cine PC were obtained. Flow void was graded as four-point scales. The sensitivity, specificity, accuracy, positive and negative predictive values of sequences were calculated. Bidirectional flow through the fenestration was detected in all group I patients by cine PC. Stroke volumes through the fenestration in group I ranged 10-160.8 ml/min. There was no correlation between the presence of reversed flow and flow void grading. Also, there was no correlation between the stroke volumes...Continue Reading

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Citations

Jan 24, 2012·AJNR. American Journal of Neuroradiology·O Algin, B Turkbey
Aug 8, 2015·Magnetic Resonance Imaging·Cailei ZhaoWeiguo Cao
May 17, 2015·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Eric W SankeyDaniele Rigamonti
Jun 1, 2014·The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques·Roberto Jose DiazMark G Hamiltonn
Oct 27, 2015·AJR. American Journal of Roentgenology·Michael RozenfeldDaniel Thomas Ginat
Dec 4, 2014·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Murat UcarTurgut Tali
Sep 20, 2011·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Alp Dinçer, M Memet Özek
Aug 19, 2011·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Florian H EbnerMartin U Schuhmann
Nov 18, 2018·AJNR. American Journal of Neuroradiology·M TrellesA M Blitz
Dec 23, 2019·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Aydan ArslanAlp Dinçer

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