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Abstract #3514

Reduction of Signal Loss in Diffusion-Weighted Imaging of the Upper Abdomen:motion Correction Using Bipolar Motion Probing Gradients

Isao Muro1, Tetso Ogino2, Tomohiko Horie1, Taro Takahara3, Thomas Kwee3, Yutaka Imai1, Marc Van Cauteren4

1Department of Radiology, Tokai University, Isehara, Japan; 2Philips Electronics Japan, Shinagawa, Japan; 3Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands; 4Philips Healthcare Asia Pacific, Shinagawa, Japan

In diffusion-weighted imaging (DWI) of the body, cardiac motion gives signal loss in the adjacent left lobe of the liver, causing poor visibility of lesions and overestimation of apparent diffusion coefficient (ADC) measurements. Motion correction (MC) using dual bipolar motion probing gradients may solve this issue. We conducted phantom and volunteer studies using DWI with and without MC and showed MC is effective in preventing signal loss and reducing falsely increased ADCs in the left lobe of the liver.