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Purpose: To organize a knee MRI segmentation challenge for characterizing the semantic and clinical efficacy of automatic segmentation methods relevant for monitoring osteoarthritis progression. Methods: A dataset partition consisting of 3D…

Purpose: To propose and evaluate an accelerated $T_{1\rho}$ quantification method that combines $T_{1\rho}$-weighted fast spin echo (FSE) images and proton density (PD)-weighted anatomical FSE images, leveraging deep learning models for…

Image and Video Processing · Electrical Eng. & Systems 2025-08-06 Junru Zhong , Chaoxing Huang , Ziqiang Yu , Fan Xiao , Siyue Li , Tim-Yun Michael Ong , Ki-Wai Kevin Ho , Queenie Chan , James F. Griffith , Weitian Chen

Objective: We evaluate a fully-automated femoral cartilage segmentation model for measuring T2 relaxation values and longitudinal changes using multi-echo spin echo (MESE) MRI. We have open sourced this model and corresponding…

Computer Vision and Pattern Recognition · Computer Science 2020-12-24 Kevin A. Thomas , Dominik Krzemiński , Łukasz Kidziński , Rohan Paul , Elka B. Rubin , Eni Halilaj , Marianne S. Black , Akshay Chaudhari , Garry E. Gold , Scott L. Delp

Imaging features of knee articular cartilage have been shown to be potential imaging biomarkers for knee osteoarthritis. Despite recent methodological advancements in image analysis techniques like image segmentation, registration, and…

Image and Video Processing · Electrical Eng. & Systems 2024-09-12 Yongcheng Yao , Weitian Chen

Background. Osteoarthritis affects about 528 million people worldwide, causing pain and stiffness in the joints. Arthroplasty is commonly performed to treat joint osteoarthritis, reducing pain and improving mobility. Nevertheless, a…

OBJECTIVES: Quantitative MRI techniques such as T2 and T1$\rho$ mapping are beneficial in evaluating cartilage and meniscus. We aimed to evaluate the MIXTURE (Multi-Interleaved X-prepared Turbo-Spin Echo with IntUitive RElaxometry)…

Analyzing knee cartilage thickness and strain under load can help to further the understanding of the effects of diseases like Osteoarthritis. A precise segmentation of the cartilage is a necessary prerequisite for this analysis. This…

To develop and validate a fully automated, deep-learning pipeline for measuring glenoid bone loss on 3D CT scans using linear-based, en-face view, and best-circle method. Shoulder CT scans of 81 patients were retrospectively collected…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Zhonghao Liu , Hanxue Gu , Qihang Li , Michael Fox , Jay M. Levin , Maciej A. Mazurowski , Brian C. Lau

The morphological changes in knee cartilage (especially femoral and tibial cartilages) are closely related to the progression of knee osteoarthritis, which is expressed by magnetic resonance (MR) images and assessed on the cartilage…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Dong Liang , Jun Liu , Kuanquan Wang , Gongning Luo , Wei Wang , Shuo Li

The purpose of this work is to develop a deep learning-based method for knee menisci segmentation in 3D ultrashort echo time (UTE) cones magnetic resonance (MR) imaging, and to automatically determine MR relaxation times, namely the T1,…

Image and Video Processing · Electrical Eng. & Systems 2019-08-06 Michal Byra , Mei Wu , Xiaodong Zhang , Hyungseok Jang , Ya-Jun Ma , Eric Y Chang , Sameer Shah , Jiang Du

We introduce CartiMorph, a framework for automated knee articular cartilage morphometrics. It takes an image as input and generates quantitative metrics for cartilage subregions, including the percentage of full-thickness cartilage loss…

Image and Video Processing · Electrical Eng. & Systems 2023-11-22 Yongcheng Yao , Junru Zhong , Liping Zhang , Sheheryar Khan , Weitian Chen

We developed deep learning models for predicting Total Knee Replacement (TKR) need within various time horizons in knee osteoarthritis patients, with a novel capability: the models can perform TKR prediction using a single scan, and…

Image and Video Processing · Electrical Eng. & Systems 2025-03-31 Haresh Rengaraj Rajamohan , Richard Kijowski , Kyunghyun Cho , Cem M. Deniz

Plain radiography is the most common modality to assess the stage of osteoarthritis. Our aims were to assess the relationship of radiography-based bone density and texture between radiographs with minimal and clinical post-processing, and…

Medical Physics · Physics 2019-02-07 Jukka Hirvasniemi , Jaakko Niinimäki , Jérôme Thevenot , Simo Saarakkala

Surgical treatment of complicated knee fractures is guided by real-time imaging using a mobile C-arm. Immediate and continuous control is achieved via 2D anatomy-specific standard views that correspond to a specific C-arm pose relative to…

Image and Video Processing · Electrical Eng. & Systems 2023-05-29 Lisa Kausch , Sarina Thomas , Holger Kunze , Jan Siad El Barbari , Klaus Maier-Hein

Quantitative MRI (qMRI) methods allow reducing the subjectivity of clinical MRI by providing numerical values on which diagnostic assessment or predictions of tissue properties can be based. However, qMRI measurements typically take more…

Medical Physics · Physics 2022-02-15 Matti Hanhela , Antti Paajanen , Mikko J. Nissi , Ville Kolehmainen

Assessing the quality of movements for post-stroke patients during the rehabilitation phase is vital given that there is no standard stroke rehabilitation plan for all the patients. In fact, it depends basically on the patient's functional…

Signal Processing · Electrical Eng. & Systems 2023-01-02 Asma Bensalah , Alicia Fornés , Cristina Carmona-Duarte , Josep Lladós

In the current study, our purpose is to evaluate the feasibility of applying deep learning (DL) enabled algorithms to quantify bilateral knee biomarkers in healthy controls scanned at 0.55T and compared with 3.0T. The current study assesses…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Rupsa Bhattacharjee , Zehra Akkaya , Johanna Luitjens , Pan Su , Yang Yang , Valentina Pedoia , Sharmila Majumdar

Knee Osteoarthritis (KOA) is the third most prevalent Musculoskeletal Disorder (MSD) after neck and back pain. To monitor such a severe MSD, a segmentation map of the femur, tibia and tibiofemoral cartilage is usually accessed using the…

Image and Video Processing · Electrical Eng. & Systems 2024-01-24 Akshay Daydar , Alik Pramanick , Arijit Sur , Subramani Kanagaraj

Inertial measurement units have the ability to accurately record the acceleration and angular velocity of human limb segments during discrete joint movements. These movements are commonly used in exercise rehabilitation programmes following…

Human-Computer Interaction · Computer Science 2018-12-11 Antonio Bevilacqua , Bingquan Huang , Rob Argent , Brian Caulfield , Tahar Kechadi

The assessment of knee osteoarthritis (KOA) severity on knee X-rays is a central criteria for the use of total knee arthroplasty. However, this assessment suffers from imprecise standards and a remarkably high inter-reader variability. An…

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