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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