Increasing evidence has suggested that endoscopic retrograde cholangiopancreatography (ERCP) in the supine position is technically more technically demanding for operators than prone ERCP and leads to a greater risk of adverse cardiorespiratory events. Our results showed no differences in the CR, SNR, and CNR of the CBD between MRCP image sets. The visibility of most pancreaticobiliary ducts, motion artifact, and overall image quality were slightly better on the prone MRCP images than on the supine ones (P < 0.005). Therefore, 3D prone MRCP could provide better visualization and a roadmap directly matched with prone ERCPs for clinicians performing a surgery.
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