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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