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Abstract #0479

Breath-hold 3D gradient- and spin-echo (GRASE) MRCP compared to compressed-sensing highly accelerated respiratory-triggered technique.

Nobuyuki Kawai1, Yoshifumi Noda1, Kimihiro Kajita2, Hiroshi Kawada1, and Masayuki Matsuo1
1Radiology, Gifu University, Gifu, Japan, 2Radiology Services, Gifu University Hospital, Gifu, Japan

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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