Evaluation of Dural Arteriovenous Fistulas of Cavernous Sinus Before and After Endovascular Treatment Using Time-resolved MR Angiography

Overview

Journal Neurosurg Rev

Specialty Neurosurgery

Date 2010 Feb 26

PMID 20182900

Citations 3

Authors

Shigeyuki Sakamoto

Masaaki Shibukawa

Yoshihiro Kiura

Toshinori Matsushige

Nobukazu Abe

Kaoru Kurisu

Affiliations

Soon will be listed here.

Abstract

Digital subtraction angiography (DSA) is the preferred method for confirming dural arteriovenous fistulas (DAVFs), but it has the disadvantage of being invasive. In contrast, time-resolved magnetic resonance angiography (TR-MRA) is a useful, noninvasive imaging technique. The aim of this study was to compare the evaluation of DAVFs of the cavernous sinus (CS) using TR-MRA and DSA. TR-MRA and DSA were obtained in six patients with CS-DAVFs treated with endovascular surgery. TR-MRA and DSA before and after treatment were reviewed by one neuroradiologist without previous knowledge of the existence of CS-DAVFs for the detection and characterization (feeding artery and venous drainage) of CS-DAVFs. DSA showed six CS-DAVFs in the six patients. TR-MRA demonstrated a hyperintensity area in the CS at the arterial phase in six patients. DSA revealed feeding arteries and a drainage vein in all CS-DAVFs. In contrast, the feeding arteries could not be identified with TR-MRA. The details regarding venous drainage could only be speculated upon with TR-MRA as it was only partly visible on the TR-MRA images. DSA after embolization showed no CS-DAVFs in any of the six patients. TR-MRA showed no hyperintensity areas in the CS at the arterial phase in any of the six patients, and with no coil artifacts. In summary, TR-MRA could detect and diagnose CS-DAVF. However, the detail regarding anatomical feeders and draining veins remains poorly visualized by TR-MRA. In this small number of cases, TR-MRA can be a useful screening tool to detect CS-DAVF and possibly also to confirm persistent obliteration following definitive treatment.

Citing Articles

Surgical treatment for ruptured dural arteriovenous fistula with large intracranial hematoma.

Ye X, Wang H, Huang Y, Zhou S, Gao X Int J Clin Exp Med. 2015; 7(12):5244-51.

PMID: 25664027 PMC: 4307474.

Endovascular treatment of 170 consecutive cranial dural arteriovenous fistulae: results and complications.

Baltsavias G, Valavanis A Neurosurg Rev. 2013; 37(1):63-71.

PMID: 24101196 DOI: 10.1007/s10143-013-0498-2.

Detection and grading of dAVF: prospects and limitations of 3T MRI.

Bink A, Berkefeld J, Wagner M, You S, Ackermann H, Lorenz M Eur Radiol. 2011; 22(2):429-38.

PMID: 21932162 DOI: 10.1007/s00330-011-2268-2.

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