Abstract #1244

Multiresolution comparison of fetal CINE MRI at 0.55 T

Datta Singh Goolaub¹, Ye Tian², Joshua F.P. van Amerom¹, John Wood^3,4, Jon Detterich⁴, Krishna S. Nayak², and Christopher K. Macgowan^1,5

¹Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada, ²Ming Hsieh Department of Electrical and Computer Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA, United States, ³Biomedical Engineering, University of Southern California, Los Angeles, CA, United States, ⁴Division of Cardiology, Department of Pediatrics and Radiology, Children's Hospital Los Angeles, Los Angeles, CA, United States, ⁵Medical Biophysics, University of Toronto, Toronto, ON, Canada

Synopsis

Keywords: Prenatal, FetusIn this study, we demonstrate the feasibility of CINE fetal CMR at 0.55 T at multiple spatial resolutions. First, real-time images are reconstructed for motion-correction and cardiac gating. Fetal cardiac CINEs are then reconstructed using the corrected data. Retrospective CINEs have higher SNR relative to their corresponding real-time reconstructions. Feasibility of the pipeline is demonstrated for up to 1.0 mm in-plane resolution. Good cardiac structure conspicuity is observed at coarse spatial resolutions in real-times and at all spatial resolutions in CINEs.

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