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Abstract #4381

Evaluation of the cross flow for anterior communicating artery aneurysms using 4D-Flow MRI

Yoshiyuki Watanabe1, Hiroto Takahashi1, Hisashi Tanaka1, Atsuko Arisawa1, Chisato Matsuo1, Eri Yoshioka1, Hajime Nakamura2, and Noriyuki Tomiyama1

1Radiology, Osaka University, Suita, Japan, 2Neurosurgery, Osaka University, Suita, Japan

The purpose of this study was to elucidate in vivo analysis of the flow dynamics of ACOM aneurysms from both A1 arteries using 4D-Flow and digital subtraction angiography (DSA). 2 out of 8 ACOM aneurysms showed intra-aneurysm flow from both A1 arteries and 6 other patients showed the unilateral A1 inflow. Inflow findings of all patients are consistent with 4D-Flow and DSA. 4D-FLOW MRI is able to visualize cross flow in ACOM aneurysms.

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