Abstract #4742

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

Ju Gang Nam^1,2, 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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