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Abstract #2057

Ultrashort TE Time-Spatial Labeling Inversion Pulse MR Angiography Denoised with Deep Learning Reconstruction for Abdominal Visceral Arteries: A Feasibility Study

Ryuichi Mori1, Hideki Ota2, Atsuro Masuda2, Tomoyoshi Kimura1, Tatsuo Nagasaka1, Takashi Nishina3, Sho Tanaka3, Yoshimori kassai3, and Kei Takase2

1Department of Radiology, Tohoku University Hospital, Sendai, Japan, 2Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan, 3Canon Medical Systems corp., Tochigi, Japan

We have developed ultrashort TE (UTE) time-SLIP MRA for the evaluation of abdominal visceral arteries. In this volunteer study, although image quality and number of visualized renal arteries on UTE time-SLIP MRA were inferior to those on steady-state free precession (SSFP) time-SLIP MRA, deep learning reconstruction enabled significant improvement of signal-to-noise ratio and contrast to the background tissue. In patients with visceral artery aneurysms treated by endovascular intervention, contrast ratio of treated segment adjacent to metal devices to the aorta were higher on UTE than SSFP time-SLIP MRA. This proposed technique is feasible for visceral artery disease after endovascular interventions.

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