MR cholangiopancreatography (MRCP) plays an essential role in the noninvasive assessment of the biliary and pancreatic duct systems. Although the conventional respiratory-triggered three-dimensional turbo spin-echo (RT-3D-TSE) MRCP sequence has an excellent duct-to-periductal tissue contrast, the long acquisition time, over 5 minutes, has been a clinical burden. We assessed two types of ultrafast MRCP within 30 seconds of scan time. Breath-hold 3D gradient- and spin-echo (GRASE) MRCP provided better image quality and a reduced number of poor or non-diagnostic images compared to RT-3D-TSE MRCP highly accelerated with optimized integrated combination with parallel imaging and compressed-sensing technique (Compressed SENSE).
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