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Abstract #1899

A single breath-hold abdominal diffusion-weighted imaging with simultaneous multislice echo-planar imaging

Naoki Ohno1, Kotaro Yoshida1, Yu Ueda2, Tosiaki Miyati1, Yuki Koshino1, Toshifumi Gabata1, and Satoshi Kobayashi1
1Kanazawa University, Kanazawa, Japan, 2Philips Japan, Tokyo, Japan

Although respiratory-triggered (RT)-diffusion-weighted imaging (DWI) has often been used to minimize respiratory motion in abdomen, unstable respiration leads to prolonged scan time without resolving the problem of respiratory motion. Therefore, we proposed a single breath-hold (BH)-DWI with simultaneous multislice (SMS) echo-planar imaging to allow faster acquisition and reliable quantification of apparent diffusion coefficient (ADC) in abdominal DWI. The BH-DWI with SMS technique reduced the scan time by more than fourfold and demonstrated comparable accuracy and repeatability in ADC quantification with conventional RT-DWI. The proposed method enables to acquire abdominal diffusion-weighted images in a single breath-holding.

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