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 Jin^1,2,3, 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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