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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…

Osteoarthritis (OA) is a common musculoskeletal condition typically diagnosed from radiographic assessment after clinical examination. However, a visual evaluation made by a practitioner suffers from subjectivity and is highly dependent on…

计算机视觉与模式识别 · 计算机科学 2017-04-07 Aleksei Tiulpin , Jérôme Thevenot , Esa Rahtu , Simo Saarakkala

This research paper explores the classification of knee osteoarthritis (OA) severity levels using advanced computer vision models and augmentation techniques. The study investigates the effectiveness of data preprocessing, including…

Segmentation of 3D knee MR images is important for the assessment of osteoarthritis. Like other medical data, the volume-wise labeling of knee MR images is expertise-demanded and time-consuming; hence semi-supervised learning (SSL),…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Yiqun Lin , Huifeng Yao , Zezhong Li , Guoyan Zheng , Xiaomeng Li

Knee osteoporosis weakens the bone tissue in the knee joint, increasing fracture risk. Early detection through X-ray images enables timely intervention and improved patient outcomes. While some researchers have focused on diagnosing knee…

图像与视频处理 · 电气工程与系统科学 2024-12-13 Ayesha Siddiqua , Rakibul Hasan , Anichur Rahman , Abu Saleh Musa Miah

The aim of this study was to investigate the influence of MRI and patient data on the prediction of knee osteoarthritis (OA) incidence using different deep learning architectures. Knee OA incidence within 24 months was predicted using the…

医学物理 · 物理学 2022-09-05 Anastasis Alexopoulos , Jukka Hirvasniemi , Nazli Tümer

Knee osteoarthritis (KOA) grading based on radiographic images is a critical yet challenging task due to subtle inter-grade differences, annotation uncertainty, and the inherently ordinal nature of disease progression. Conventional deep…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Xiaoyang Li , Runni Zhou

This study assesses whether self-supervised learning (SSL) improves knee osteoarthritis (OA) modeling for diagnosis and prognosis relative to ImageNet-pretrained initialization. We compared (i) image-only SSL pretrained on knee radiographs…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Haresh Rengaraj Rajamohan , Yuxuan Chen , Kyunghyun Cho , Cem M. Deniz

This paper proposes a new approach to automatically quantify the severity of knee osteoarthritis (OA) from radiographs using deep convolutional neural networks (CNN). Clinically, knee OA severity is assessed using Kellgren \& Lawrence (KL)…

计算机视觉与模式识别 · 计算机科学 2016-09-09 Joseph Antony , Kevin McGuinness , Noel E O Connor , Kieran Moran

This work presents a comparative study of existing and new techniques to detect knee injuries by leveraging Stanford's MRNet Dataset. All approaches are based on deep learning and we explore the comparative performances of transfer learning…

图像与视频处理 · 电气工程与系统科学 2020-10-06 David Azcona , Kevin McGuinness , Alan F. Smeaton

Background: MRI is the modality of choice for cartilage imaging; however, its diagnostic performance is variable and significantly lower than the gold standard diagnostic knee arthroscopy. In recent years, deep learning has been used to…

计算机视觉与模式识别 · 计算机科学 2021-06-24 Gergo Merkely , Alireza Borjali , Molly Zgoda , Evan M. Farina , Simon Gortz , Orhun Muratoglu , Christian Lattermann , Kartik M. Varadarajan

Diagnosing knee joint osteoarthritis (KOA), a major cause of disability worldwide, is challenging due to subtle radiographic indicators and the varied progression of the disease. Using deep learning for KOA diagnosis requires broad,…

图像与视频处理 · 电气工程与系统科学 2024-09-26 Fabi Prezja , Leevi Annala , Sampsa Kiiskinen , Timo Ojala

The 3D morphology and quantitative assessment of knee articular cartilages (i.e., femoral, tibial, and patellar cartilage) in magnetic resonance (MR) imaging is of great importance for knee radiographic osteoarthritis (OA) diagnostic…

图像与视频处理 · 电气工程与系统科学 2019-08-14 Chaowei Tan , Zhennan Yan , Shaoting Zhang , Kang Li , Dimitris N. Metaxas

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

Knee-Joint Osteoarthritis (KOA) is a prevalent cause of global disability and is inherently complex to diagnose due to its subtle radiographic markers and individualized progression. One promising classification avenue involves applying…

图像与视频处理 · 电气工程与系统科学 2023-11-13 Fabi Prezja , Leevi Annala , Sampsa Kiiskinen , Suvi Lahtinen , Timo Ojala

In medical image analysis, the cost of acquiring high-quality data and their annotation by experts is a barrier in many medical applications. Most of the techniques used are based on supervised learning framework and need a large amount of…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Standard segmentation of medical images based on full-supervised convolutional networks demands accurate dense annotations. Such learning framework is built on laborious manual annotation with restrict demands for expertise, leading to…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Liyan Sun , Jianxiong Wu , Xinghao Ding , Yue Huang , Guisheng Wang , Yizhou Yu

We present a fully automated learning-based approach for segmenting knee cartilage in the presence of osteoarthritis (OA). The algorithm employs a hierarchical set of two random forest classifiers. The first is a neighborhood approximation…

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

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…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Dong Liang , Jun Liu , Kuanquan Wang , Gongning Luo , Wei Wang , Shuo Li

Knee Osteoarthritis (OA) is a debilitating disease affecting over 250 million people worldwide. Currently, radiologists grade the severity of OA on an ordinal scale from zero to four using the Kellgren-Lawrence (KL) system. Recent studies…

图像与视频处理 · 电气工程与系统科学 2024-07-16 Niamh Belton , Misgina Tsighe Hagos , Aonghus Lawlor , Kathleen M. Curran