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Abstract #2781

Free-breathing MRCP using motion compensated 3D Cartesian turbo spin-echo imaging

Tom Bruijnen1,2, Tim Schakel1, Jan Lagendijk1, Liesbeth Geerts3, Johannes Peeters3, Niels Blanken4, Wouter Veldhuis4, and Cornelis van den Berg1,2
1Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands, 2Computational Imaging Group for MRI diagnostics and therapy, Centre for Image Science, Utrecht, Netherlands, 3BIU MR, Philips Healthcare, Best, Netherlands, 4Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands

Magnetic resonance cholangiopancreatography (MRCP) is crucial for the diagnosis of biliary/pancreatic duct disease. However, conventional respiratory triggered (RT-MRCP) scans require long acquisition times and ultimately fail in patients with irregular breathing. In this work we propose a free-breathing motion corrected MRCP scan (MOCO-MRCP) based on a rewinded Cartesian Acquisition with Spiral Proļ¬le ordering (rCASPR). MOCO-MRCP eliminates idle time associated with respiratory triggering, thereby increasing the robustness to motion artefacts while reducing the overall scan time compared to RT-MRCP. We show preliminary results of MOCO-MRCP in three patients with suspected biliary/pancreatic duct disease.

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