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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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