Abstract #1246

Fetal 3D cine cardiovascular MRI: Improved image quality with region-optimized virtual coils

Marjolein Piek¹, Johannes Töger¹, Erik Hedström^1,2, and Anthony H. Aletras^1,3

¹Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden, ²Diagnostic Radiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden, ³Laboratory of Computing, Medical Informatics and Biomedical-Imaging Technologies, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece

Synopsis

Keywords: Fetal, Image ReconstructionRecently, the first 3D cine radial acquisition of the fetal heart with isotropic resolution was introduced. However, image quality suffers from radial streaking artifacts due to under-sampling. A new coil combination method, Region-Optimised Virtual coils (ROVir), was suggested to improve image quality by highlighting signal from the ROI while suppressing signal from unwanted regions. This study aimed to compare 3D fetal cardiac imaging ROVir to conventional SVD-based coil combination, in a parallel imaging based reconstruction. Streaking artifacts were reduced, and the cine could be reconstructed to more cardiac phases. This allowed for improved appreciation of fetal cardiac function.

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