Abstract #2263

Energy loss assessed with 4D-Flow for the normal subjects and patients with an abdominal aortic aneurysm pre and post endovascular aortic repair

Takashi Mizuno¹, Yasuo Takehara², Masataka Sugiyama², Ryota Horiguchi³, Shinji Naganawa³, Yasuo Sakurai¹, Yutaka Kato¹, Shinji Abe¹, Haruo Isoda⁴, Tomohiro Sato⁵, Tsuneo Ishiguchi⁵, Masanori Tadokoro⁵, and Atushi Nozaki⁶

¹Department of Radiological Technology, Nagoya University Hospital, Nagoya, Japan, ²Department of Fundamental Development of Low Invasive Diagnostic Imaging, Nagoya University Graduate School of Medicine, Nagoya, Japan, ³Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan, ⁴Brain & Mind Research Center, Nagoya University, Nagoya, Japan, ⁵Trust Clinic, Nagoya, Japan, ⁶GE Healthcare Japan, Tokyo, Japan

We analyzed energy loss in normal subjects, patients in pre- and post- endovascular aortic repair. Patients had vortices in dilated flow path in pretreatment and tortuous high-velocity streamlines in posttreatment. Energy loss of posttreatment was higher than that of pretreatment. Energy loss would be affected most effectively by the change of the flow direction.

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