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Related papers: Utilizing 3D Fast Spin Echo Anatomical Imaging to …

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Two-dimensional (2D) fast spin echo (FSE) techniques play a central role in the clinical magnetic resonance imaging (MRI) of knee joints. Moreover, three-dimensional (3D) FSE provides high-isotropic-resolution magnetic resonance (MR) images…

Image and Video Processing · Electrical Eng. & Systems 2022-12-15 Shutian Zhao , Donal G. Cahill , Siyue Li , Fan Xiao , Thierry Blu , James F Griffith , Weitian Chen

Introduction: Quantitative MRI techniques such as T2 and T1\r{ho} mapping are beneficial in evaluating knee joint pathologies; however, long acquisition times limit their clinical adoption. MIXTURE (Multi-Interleaved X-prepared Turbo-Spin…

Objective: To establish an automated pipeline for post-processing of quantitative spin-lattice relaxation time constant in the rotating frame ($T_{1\rho}$) imaging of knee articular cartilage. Design: The proposed post-processing pipeline…

Image and Video Processing · Electrical Eng. & Systems 2024-09-20 Junru Zhong , Yongcheng Yao , Fan Xiao , Tim-Yun Michael Ong , Ki-Wai Kevin Ho , Siyue Li , Chaoxing Huang , Queenie Chan , James F. Griffith , Weitian Chen

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…

Medical Physics · Physics 2022-09-05 Anastasis Alexopoulos , Jukka Hirvasniemi , Nazli Tümer

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

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

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

T2 weighted imaging of the spine is commonly performed using fast spin echo (FSE/TSE) based sequences, resulting in long scan times and vulnerability to motion artifacts. While single shot fast spin echo sequences have been attempted, their…

Purpose: To optimize the choice of the flip-angles of magnetization-prepared gradient echo (MP-GRE) sequences for improved accuracy, precision, and speed of 3D-T1rho mapping. Methods: We propose a new optimization approach for finding…

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…

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

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)…

A model-based reconstruction technique for accelerated T2 mapping with improved accuracy is proposed using undersampled Cartesian spin-echo MRI data. The technique employs an advanced signal model for T2 relaxation that accounts for…

Medical Physics · Physics 2015-03-03 Tilman J. Sumpf , Andreas Petrovic , Martin Uecker , Florian Knoll , Jens Frahm

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…

Image and Video Processing · Electrical Eng. & Systems 2024-12-13 Ayesha Siddiqua , Rakibul Hasan , Anichur Rahman , Abu Saleh Musa Miah

Tissue stiffness is related to soft tissue pathologies and can be assessed through palpation or via clinical imaging systems, e.g., ultrasound or magnetic resonance imaging. Typically, the image based approaches are not suitable during…

Signal Processing · Electrical Eng. & Systems 2025-09-04 Maximilian Neidhardt , Sarah Latus , Tim Eixmann , Gereon Hüttmann , Alexander Schlaefer

Knee osteoarthritis is a degenerative joint disease that induces chronic pain and disability. Bone morphological analysis is a promising tool to understand the mechanical aspect of this disorder. This study proposes a 2D bone morphological…

Image and Video Processing · Electrical Eng. & Systems 2024-03-14 Yun Xin Teoh , Alice Othmani , Siew Li Goh , Juliana Usman , Khin Wee Lai

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…

Knee osteoarthritis (OA) is one of the most common musculoskeletal disorders and requires early-stage diagnosis. Nowadays, the deep convolutional neural networks have achieved greatly in the computer-aided diagnosis field. However, the…

Image and Video Processing · Electrical Eng. & Systems 2020-10-13 Jiayu Huo , Liping Si , Xi Ouyang , Kai Xuan , Weiwu Yao , Zhong Xue , Qian Wang , Dinggang Shen , Lichi Zhang

Low-field T2 mapping MRI can democratize neuropediatric imaging by improving accessibility and providing quantitative biomarkers of brain development. \textbf{Purpose:} To evaluate the feasibility of high-resolution T2 mapping using a…

Quantitative T1rho mapping has shown promise in clinical and research studies. However, it suffers from long scan times. Deep learning-based techniques have been successfully applied in accelerated quantitative MR parameter mapping.…

Image and Video Processing · Electrical Eng. & Systems 2024-07-25 Yuanyuan Liu , Jinwen Xie , Zhuo-Xu Cui , Qingyong Zhu , Jing Cheng , Dong Liang , Yanjie Zhu
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