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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