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Abstract #2417

Improvement of visualization of cardiac wall in diffusion-weighted imaging using cardiac triggering and acceleration motion correction

Tomoya Nakamura 1 , Shuhei Shibukawa 1 , Isao Muro 1 , Nao Kajihara 1 , Hiroaki Nishio 1 , Tetsuo Ogino 2 , Tetsu Niwa 1 , and Yutaka Imai 1

1 Tokai University Hospital, Isehara, Kanagawa, Japan, 2 Philips Healthcare Asia Pacific, Tokyo, Japan

Cardiac diffusion-weighted imaging (DWI) often results in signal loss and poor visibility even though the cardiac triggering is used. The purpose of study is to assess the visualization of cardiac wall in cardiac triggered DWI using motion correction (MC) and accelerate motion correction (aMC). Muscle normalized signal intensity at aMC DWI is significantly higher than MC DWI and cardiac triggered DWI in each b-value of 200, 400, 600, and 800s/mm2. Visualization of cardiac wall is improved at aMC DWI even if the high b-value is used. DWI with aMC may enable to assess water molecular change in myocardial infarction.

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