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Abstract #2747

Comparison between high-resolution DESS images of the hip joint at 3T and 7T MRI

Aurelien Destruel1, Mingyan Li 1, Ewald Weber1, Jin Jin1,2,3, Shekhar S Chandra1, Jurgen Fripp4, Feng Liu1, Stuart Crozier1, and Craig Engstrom5
1School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia, 2Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA, United States, 3ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, Brisbane, Australia, 4CSIRO Health and Biosecurity, Herston, Australia, 5School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Australia

Advances in automatic segmentation of cartilage in hip joints has shown the need for high resolution and contrast in 3D sequences. In this work, double-echo steady-state (DESS) hip images from a healthy volunteer were compared at 3T and 7T. 3D-DESS with a resolution up to 0.4x0.4x0.6mm3 was acquired, and showed that the 7T images had superior anatomical detail, signal-to-noise ratio (SNR), contrast ratio (CR) and overall image quality. The improvements observed in 7T imaging of the hip have the potential to boost the performance of automated cartilage segmentation algorithms by reducing segmentation errors.

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