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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