Optimization of MR Cholangiopancreatography at 3T: Comparison of 2D Thick Slab Acquisitions to 3D Strategies
Smith M, Pedrosa I, Niendorf E, Rofsky N
Beth Israel Deaconess Medical Center
3T MRI and parallel imaging techniques make quality 3D sequences for magnetic resonance cholangiopancreatography (MRCP) clinically feasible. In this study, 20 patients underwent MRCP that included standard 2D thick-slab SSFSE images and 3D breath hold (BH) and 3D respiratory gated non-breath hold (RG-NBH) FRFSE sequences on a 3T GE system. Image sets were evaluated for visualization of different levels of bile ducts, pancreatic ducts, SNR, and overall impression. 3D RG-NBH was significantly better than 2D thick-slab SSFSE for depicting most bile ducts, SNR, and overall impression. 3D RG-NBH significantly outperformed 3D BH in all categories.