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Abstract #1611

Ultrashort TE 4D-MRA for Giant Aneurysms Treated with Flow-Diverter Stents: Visualization of Flow in the Stents and Hemodynamic Vascular Flow

Nao Takano1, Michimasa Suzuki1, Yutaka Ikenouchi1, Munetaka Yamamoto2, Kohsuke Teranishi2, Syo Murata1, Nozomi Hamasaki1, Haruyoshi Hoshito1, Christina Andica1, Toshiaki Akashi1, Akihiko Wada1, Hidenori Oishi3, and Shigeki Aoki1
1Department of Radiology, Juntendo University Hospital, Tokyo, Japan, Tokyo, Japan, 2Department of Neurosurgery, Juntendo University School of Medicine, Tokyo, Japan, Tokyo, Japan, 3Department of Neuroendovascular Therapy, Juntendo University School of Medicine, Tokyo, Japan, Tokyo, Japan

We assessed the usefulness of ultrashort TE (UTE) 4D-MR angiography for giant aneurysms treated with flow-diverter stents. We evaluated the depiction of flow in the stents, and visualization of hemodynamic vascular flow in aneurysms. The newly developed UTE 4D-MRA could visualize flow in the stents at the acceptable quality for diagnosis, and hemodynamic vascular flow in aneurysms were comparable to X-ray DSA. Moreover, UTE 4D-MRA showed intraaneurysmal flow within the coil which was difficult to visualize even with X-ray DSA. Our study demonstrated that UTE 4D-MRA was adequate to visualize the hemodynamic vascular flow in aneurysms, and might be useful.

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