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The severity of knee osteoarthritis is graded using the 5-point Kellgren-Lawrence (KL) scale where healthy knees are assigned grade 0, and the subsequent grades 1-4 represent increasing severity of the affliction. Although several methods…

图像与视频处理 · 电气工程与系统科学 2020-04-21 Sudeep Kondal , Viraj Kulkarni , Ashrika Gaikwad , Amit Kharat , Aniruddha Pant

Knee pain is undoubtedly the most common musculoskeletal symptom that impairs quality of life, confines mobility and functionality across all ages. Knee pain is clinically evaluated by routine radiographs, where the widespread adoption of…

图像与视频处理 · 电气工程与系统科学 2022-02-14 Shi Yan , Taghi Ramazanian , Elham Sagheb , Walter K. Kremers , Vipin Chaudhary , Michael Taunton , Hilal Maradit Kremers , Ahmad P. Tafti

A fully automated knee MRI segmentation method to study osteoarthritis (OA) was developed using a novel hierarchical set of random forests (RF) classifiers to learn the appearance of cartilage regions and their boundaries. A neighborhood…

计算机视觉与模式识别 · 计算机科学 2019-03-12 Satyananda Kashyap , Honghai Zhang , Karan Rao , Milan Sonka

Accurate prediction of malignancy in renal tumors is crucial for informing clinical decisions and optimizing treatment strategies. However, existing imaging modalities lack the necessary accuracy to reliably predict malignancy before…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Zhengkang Fan , Chengkun Sun , Russell Terry , Jie Xu , Longin Jan Latecki

In critical care, intensivists are required to continuously monitor high dimensional vital signs and lab measurements to detect and diagnose acute patient conditions. This has always been a challenging task. In this study, we propose a…

机器学习 · 计算机科学 2019-01-15 Ziyuan Pan , Hao Du , Kee Yuan Ngiam , Fei Wang , Ping Shum , Mengling Feng

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…

图像与视频处理 · 电气工程与系统科学 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

Our aim was to assess the ability of radiography-based bone texture parameters in proximal femur and acetabulum to predict incident radiographic hip osteoarthritis (rHOA) over a 10 years period. Pelvic radiographs from CHECK (Cohort Hip and…

Three-dimensional (3D) semi-quantitative grading of pathological features in articular cartilage (AC) offers significant improvements in basic research of osteoarthritis (OA). We have earlier developed the 3D protocol for imaging of AC and…

图像与视频处理 · 电气工程与系统科学 2019-07-12 Aleksei Tiulpin , Mikko Finnilä , Petri Lehenkari , Heikki J. Nieminen , Simo Saarakkala

Radiographic grading of knee osteoarthritis (KOA) with the Kellgren-Lawrence (KL) system is limited by inter-reader variability and the opacity of current deep learning approaches, which predict KL grades directly from images without…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Azmul A. Irfan , Nur Ahmad Khatim , Alfan Alfian Irfan , Achmad Zaki , Erike A. Suwarsono , Mansur M. Arief

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…

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…

医学物理 · 物理学 2019-02-07 Jukka Hirvasniemi , Jaakko Niinimäki , Jérôme Thevenot , Simo Saarakkala

Knee osteoarthritis (OA) is a major cause of disability worldwide and is still largely assessed using subjective radiographic grading, most commonly the Kellgren-Lawrence (KL) scale. Artificial intelligence (AI) and radiomics offer…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Abbas Alzubaidi , Ali Al-Bayaty

Background: Acute kidney injury (AKI), the decline of kidney excretory function, occurs in up to 18% of hospitalized admissions. Progression of AKI may lead to irreversible kidney damage. Methods: This retrospective cohort study includes…

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…

Background: Clear cell renal cell carcinoma (ccRCC) is the most common renal-related tumor with high heterogeneity. There is still an urgent need for novel diagnostic and prognostic biomarkers for ccRCC. Methods: We proposed a…

图像与视频处理 · 电气工程与系统科学 2023-01-13 Siteng Chen , Xiyue Wang , Jun Zhang , Liren Jiang , Ning Zhang , Feng Gao , Wei Yang , Jinxi Xiang , Sen Yang , Junhua Zheng , Xiao Han

In medical image analysis, automated segmentation of multi-component anatomical structures, which often have a spectrum of potential anomalies and pathologies, is a challenging task. In this work, we develop a multi-step approach using…

图像与视频处理 · 电气工程与系统科学 2022-12-02 Boyeong Woo , Craig Engstrom , William Baresic , Jurgen Fripp , Stuart Crozier , Shekhar S. Chandra

Bone marrow lesions (BMLs) are critical indicators of knee osteoarthritis (OA). Since they often appear as small, irregular structures with indistinguishable edges in knee magnetic resonance images (MRIs), effective detection of BMLs in MRI…

图像与视频处理 · 电气工程与系统科学 2024-10-01 Shihua Qin , Ming Zhang , Juan Shan , Taehoon Shin , Jonghye Woo , Fangxu Xing

Wear on total knee replacements (TKRs) is an important criterion for their performance characteristics. Numerical simulations of such wear has seen increasing attention over the last years. They have the potential to be much faster and less…

组织与器官 · 定量生物学 2017-04-28 Ansgar Burchardt , Christian Abicht , Oliver Sander

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…

图像与视频处理 · 电气工程与系统科学 2024-09-12 Yongcheng Yao , Weitian Chen

Osteosarcoma is the most common primary bone cancer whose standard treatment includes pre-operative chemotherapy followed by resection. Chemotherapy response is used for predicting prognosis and further management of patients. Necrosis is…