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Abstract #5042

A systematic automated post-processing approach for quantitative analysis of 3D T1ρ knee MRI

Junru Zhong1, Yongcheng Yao1,2, Fan Xiao3, Michael Tim-Yun Ong4, Kevin Ki-Wai Ho4, Queenie Chan5, James F Griffith1, and Weitian Chen1
1Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Sha Tin, NT, Hong Kong, 2School of Informatics, University of Edinburgh, Edinburgh, United Kingdom, 3Department of Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China, 4Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Sha Tin, NT, Hong Kong, 5Philips Healthcare, Sha Tin, NT, Hong Kong

Synopsis

Keywords: Cartilage, Software Tools

Motivation: To address the global healthcare challenge of knee osteoarthritis.

Goal(s): Develop and validate an automated post-processing method for quantitative 3D T1ρ knee imaging analysis. The proposed post-processing pipeline accelerates the process while preserving a user-friendly and clinical-related output.

Approach: We proposed a post-processing pipeline that combines parcellation, ROIs selection, T1rho fitting, and regionally averaged outputs. We evaluated our approach on 30 OA patients and 10 healthy controls.

Results: The proposed post-processing approach achieved satisfactory performance on automatic ROI selection compared to the manually labelled ROIs and provided quantitative T1ρ analysis with clinical promise.

Impact: Our proposed pipeline enables automated post-processing for T1ρ imaging with deep learning, pushing this promising technique to the clinics to provide sensitive and quantitative knee OA diagnostics.

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