Abstract 260: Endoluminal Visualization of Dural Arteriovenous Fistula Using Virtual Angioscopy

IntroductionVirtual Angioscopy (VA) has not been widely used for neurointervention.MethodsReviewing cases of dural arteriovenous fistula (dAVF) where virtual angioscopy was utilized were reviewed.Results2 cases are reported where VA images were derived from 3D volume rendered (VR) images. It helped...

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Bibliographic Details
Published in:	Stroke: vascular and interventional neurology Vol. 4; no. S1
Main Authors:	litao, M L, Wallace, E, D Turkel‐Parrella, Farkas, J
Format:	Journal Article
Language:	English
Published:	Phoenix Wiley Subscription Services, Inc 01-11-2024
Subjects:	Fistula
Online Access:	Get full text
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Summary:	IntroductionVirtual Angioscopy (VA) has not been widely used for neurointervention.MethodsReviewing cases of dural arteriovenous fistula (dAVF) where virtual angioscopy was utilized were reviewed.Results2 cases are reported where VA images were derived from 3D volume rendered (VR) images. It helped anatomic understanding and treatment planning.ConclusionThese cases demonstrate the utility of VA in endoluminal visualization of dural arteriovenous fistula that may aid in treatment planning.Case 1 Images. (A) and (B) DSA of right ECA demonstrating a dAVF of the vein of Trolard supplied mainly by the anterior parietal branch of the right MMA. (C) VR images demonstrating the fistula with symbols corresponding to the Angioscopy (D) Red star is angioscopic view from the anterior parietal MMA branch. (E) View from the fistula‐ blue triangle, where the yellow circle is posterior parietal branch and the green rectangle the Trolard. (F) 40% n‐BCA injection via from posterior branch to fistula. (G) RECA run demonstrating occlusion of the fistula.Case 2 Images. (A) and (B) DSA of right ECA demonstrating an indirect left CCF supplied by cavernous branches of the foramen rotundum and accessory meningeal arteries. (C) 3D VR fusion of the right ECA: blue, left ECA: red, and left ICA: white demonstrating the arterial inputs of the CC fistula, the posterior hypophyseal artery from the right MHT is demonstrated (yellow arrow). (D) 3D images of the “fistulogram” with symbols corresponding angioscopic views; the white arrow points to the microcatheter tip. (E) View from inside the fistula‐ yellow circle, with the venous drainage towards the SOV‐ blue triangle, and the venous drainage towards the SMCV‐ green rectangle. (F) Fist coil positioned at point of fistula at the junction of the SOV and SMCV.(G) Right CCA post coil‐embolization demonstrating resultant obliteration of this Type D CCF.
ISSN:	2694-5746 2694-5746
DOI:	10.1161/SVIN.04.suppl_1.260