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Abstract #4742

GRASE Revisited: Breath-hold Three-dimensional (3D) Magnetic Resonance Cholangiopancreatography using a Gradient and Spin Echo (GRASE) Technique at 3T

Ju Gang Nam1,2, Jeong Hee Yoon3, Jeong Min Lee3, Hyo-Jin Kang4, Sang Min Lee5, Johannes M. Peeters6, and Eunju Kim7

1Radiology, Seoul National University Hostpital, Seoul, Republic of Korea, 2Radiology, Seoul National University, Seoul, Republic of Korea, 3Seoul National University Hospital, Seoul, Republic of Korea, 4Seoul National University Hostpital, Seoul, Republic of Korea, 5Hallym University Sacred Heart Hospital, Gyeonggi-do, Republic of Korea, 6Philips MR Clinical Science, Best, Netherlands, 7Philips Healthcare Korea, Seoul, Republic of Korea

We evaluate the clinical feasibility and image quality of breath-hold (BH) three-dimensional (3D) MRCP using a gradient and spin-echo (GRASE) technique compared to the conventional 3D respiratory-triggered (RT)-MRCP using a turbo spin-echo (TSE) sequence at 3T. Sixty-six patients underwent both 3D RT-TSE-MRCP and 3D BH-GRASE-MRCP at 3T and three radiologists independently reviewed the images. The 3D BH-GRASE-MRCP had a significantly better image quality. In detail, 3D BH-GRASE-MRCP better depicted the common bile duct, cystic duct, and bilateral 1st intrahepatic duct. The number of scans with nondiagnostic or poor image quality significantly decreased with 3D BH-GRASE-MRCP compared with 3D RT-TSE-MRCP.

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