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Abstract #0240

Computationally tractable high resolution non-rigid motion compensated 3D abdominal image reconstruction

Tom Bruijnen1,2, Tim Schakel1, and Cornelis AT van den Berg1,2
1Department of Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands, 2Computational Imaging Group for MR Therapy and Diagnostics, University Medical Center Utrecht, Utrecht, Netherlands


Respiratory and bulk organ motion remains a significant problem in abdominal 3D MRI. Motion compensated image reconstruction is a potential generic solution, but requires solving a large computational problem. In this work we propose to split the image reconstruction into sagittal planes to correct for the majority of respiratory and bulk organ motion. We demonstrate that the proposed method reconstructs high quality free-breathing T1 gradient echo images that are qualitatively comparable to breathhold scans. Future work will assess the feasibility of the method for dynamic contrast enhanced MRI and MR cholangiopancreatography.

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