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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…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Satyananda Kashyap , Honghai Zhang , Karan Rao , Milan Sonka

Magnetic resonance imaging (MRI) offers superior soft tissue contrast and is widely used in biomedicine. However, conventional MRI is not quantitative, which presents a bottleneck in image analysis and digital healthcare. Typically,…

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)…

Accurate reconstruction of implanted knee models is crucial in orthopedic surgery and biomedical engineering, enhancing preoperative planning, optimizing implant design, and improving surgical outcomes. Traditional methods rely on…

Image and Video Processing · Electrical Eng. & Systems 2024-08-06 Viet-Dung Nguyen , Michael T. LaCour , Richard D. Komistek

Objective: To assess the ability of imaging-based deep learning to predict radiographic patellofemoral osteoarthritis (PFOA) from knee lateral view radiographs. Design: Knee lateral view radiographs were extracted from The Multicenter…

Computer Vision and Pattern Recognition · Computer Science 2021-01-13 Neslihan Bayramoglu , Miika T. Nieminen , Simo Saarakkala

Knee osteoarthritis (OA) is the most common osteoarthritis and a leading cause of disability. Cartilage defects are regarded as major manifestations of knee OA, which are visible by magnetic resonance imaging (MRI). Thus early detection and…

Image and Video Processing · Electrical Eng. & Systems 2022-01-13 Zixu Zhuang , Liping Si , Sheng Wang , Kai Xuan , Xi Ouyang , Yiqiang Zhan , Zhong Xue , Lichi Zhang , Dinggang Shen , Weiwu Yao , Qian Wang

Magnetic resonance imaging (MRI) of thigh and calf muscles is one of the most effective techniques for estimating fat infiltration into muscular dystrophies. The infiltration of adipose tissue into the diseased muscle region varies in its…

Image and Video Processing · Electrical Eng. & Systems 2019-10-14 Rula Amer , Jannette Nassar , David Bendahan , Hayit Greenspan , Noam Ben-Eliezer

Precision medicine in musculoskeletal imaging requires scalable measurement infrastructure. We developed a modular system that converts routine MRI into standardized quantitative biomarkers suitable for clinical decision support. Promptable…

Image and Video Processing · Electrical Eng. & Systems 2026-04-06 Gabrielle Hoyer , Michelle W Tong , Rupsa Bhattacharjee , Valentina Pedoia , Sharmila Majumdar

Non-rigid cortical registration is an important and challenging task due to the geometric complexity of the human cortex and the high degree of inter-subject variability. A conventional solution is to use a spherical representation of…

Image and Video Processing · Electrical Eng. & Systems 2020-07-28 Jieyu Cheng , Adrian V. Dalca , Bruce Fischl , Lilla Zollei

Deep learning approaches have achieved state-of-the-art performance in cardiac magnetic resonance (CMR) image segmentation. However, most approaches have focused on learning image intensity features for segmentation, whereas the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Jinming Duan , Ghalib Bello , Jo Schlemper , Wenjia Bai , Timothy J W Dawes , Carlo Biffi , Antonio de Marvao , Georgia Doumou , Declan P O'Regan , Daniel Rueckert

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…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Satyananda Kashyap , Ipek Oguz , Honghai Zhang , Milan Sonka

We introduce "PatchMorph," an new stochastic deep learning algorithm tailored for unsupervised 3D brain image registration. Unlike other methods, our method uses compact patches of a constant small size to derive solutions that can combine…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Henrik Skibbe , Michal Byra , Akiya Watakabe , Tetsuo Yamamori , Marco Reisert

Feature tracking Cardiac Magnetic Resonance (CMR) has recently emerged as an area of interest for quantification of regional cardiac function from balanced, steady state free precession (SSFP) cine sequences. However, currently available…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Davis M. Vigneault , Weidi Xie , David A. Bluemke , J. Alison Noble

This paper introduces GeoMorph, a novel geometric deep-learning framework designed for image registration of cortical surfaces. The registration process consists of two main steps. First, independent feature extraction is performed on each…

Machine Learning · Computer Science 2023-11-23 Mohamed A. Suliman , Logan Z. J. Williams , Abdulah Fawaz , Emma C. Robinson

Purpose: This study proposes a novel anatomically-driven dynamic modeling framework for coronary arteries using skeletal skinning weights computation, aiming to achieve precise control over vessel deformation while maintaining real-time…

Graphics · Computer Science 2025-03-05 Shuo Wang , Tong Ren , Nan Cheng , Rong Wang , Li Zhang

Image segmentation in total knee arthroplasty is crucial for precise preoperative planning and accurate implant positioning, leading to improved surgical outcomes and patient satisfaction. The biggest challenges of image segmentation in…

Image and Video Processing · Electrical Eng. & Systems 2024-05-28 Viet Dung Nguyen , Michael T. LaCour , Richard D. Komistek

Accurate estimation of shape thickness from medical images is crucial in clinical applications. For example, the thickness of myocardium is one of the key to cardiac disease diagnosis. While mathematical models are available to obtain…

Image and Video Processing · Electrical Eng. & Systems 2020-08-26 Qiaoying Huang , Eric Z. Chen , Hanchao Yu , Yimo Guo , Terrence Chen , Dimitris Metaxas , Shanhui Sun

Advancements in wireless ultrasound technology allow for point of care cartilage imaging, yet validation against traditional ultrasound units remains to be established for knee cartilage outcomes. Therefore, the purpose of our study was to…

Image and Video Processing · Electrical Eng. & Systems 2024-05-21 Arjun Parmar , Corey D Grozier , Robert Dima , Jessica E Tolzman , Ilker Hacihaliloglu , Kenneth L Cameron , Ryan Fajardo , Matthew S Harkey

We present CaravelMetrics, a computational framework for automated cerebrovascular analysis that models vessel morphology through skeletonization-derived graph representations. The framework integrates atlas-based regional parcellation,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Daniele Falcetta , Liane S. Canas , Lorenzo Suppa , Matteo Pentassuglia , Jon Cleary , Marc Modat , Sébastien Ourselin , Maria A. Zuluaga

Computed tomography (CT) metal artifact reduction (MAR) aims to reduce the severe streaking artifacts induced by metallic implants and other high-density objects. Effective MAR generally requires both accurate artifact localization and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Zilong Li , Chenglong Ma , Yiming Lei , Yuanlin Li , Jing Han , Jiannan Liu , Huidong Xie , Junping Zhang , Yi Zhang , Hongming Shan