English
Related papers

Related papers: CT-based Subchondral Bone Microstructural Analysis…

200 papers

The study objective was to investigate the performance of a dedicated convolutional neural network (CNN) optimized for wrist cartilage segmentation from 2D MR images. CNN utilized a planar architecture and patch-based (PB) training approach…

Although deep learning (DL) methods are powerful for solving inverse problems, their reliance on high-quality training data is a major hurdle. This is significant in high-dimensional (dynamic/volumetric) magnetic resonance imaging (MRI),…

Image and Video Processing · Electrical Eng. & Systems 2024-05-24 Frederic Wang , Han Qi , Alfredo De Goyeneche , Reinhard Heckel , Michael Lustig , Efrat Shimron

Precise segmentation of knee tissues from magnetic resonance imaging (MRI) is critical in quantitative imaging and diagnosis. Convolutional neural networks (CNNs), which are state of the art, have limitations owing to the lack of…

Image and Video Processing · Electrical Eng. & Systems 2021-09-30 Sheheryar Khan , Basim Azam , Yongcheng Yao , Weitian Chen

A method of a Convolutional Neural Networks (CNN) for image classification with image preprocessing and hyperparameters tuning was proposed. The method aims at increasing the predictive performance for COVID-19 diagnosis while more complex…

Image and Video Processing · Electrical Eng. & Systems 2023-06-06 Kenan Morani , Devrim Unay

The integrity of articular cartilage is a crucial aspect in the early diagnosis of osteoarthritis (OA). Many novel MRI techniques have the potential to assess compositional changes of the cartilage extracellular matrix. Among these…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Alejandra Duarte , Chaitra V. Hegde , Aakash Kaku , Sreyas Mohan , José G. Raya

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…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Xiaoyang Li , Runni Zhou

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…

We propose a method for estimating the bone mineral density (BMD) from a plain x-ray image. Dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT) provide high accuracy in diagnosing osteoporosis; however, these…

Image and Video Processing · Electrical Eng. & Systems 2022-07-08 Yi Gu , Yoshito Otake , Keisuke Uemura , Mazen Soufi , Masaki Takao , Nobuhiko Sugano , Yoshinobu Sato

Automatic and precise multi-class vertebrae segmentation from CT images is crucial for various clinical applications. However, due to similar appearances between adjacent vertebrae and the existence of various pathologies, existing…

Image and Video Processing · Electrical Eng. & Systems 2025-05-29 Xin You , Yixin Lou , Minghui Zhang , Jie Yang , Yun Gu

Bone segmentation is an essential step for the preoperative planning of fracture trauma surgery. The automated segmentation of fractured bone from computed tomography (CT) scans remains challenging, due to the large differences of fractures…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Yu Zhou , Xiahao Zou , Yi Wang

Introduction: Bone health disorders like osteoarthritis and osteoporosis pose major global health challenges, often leading to delayed diagnoses due to limited diagnostic tools. This study presents an AI-powered system that analyzes knee…

Knee Osteoarthritis (KOA) is a highly prevalent chronic musculoskeletal condition with no currently available treatment. The manifestation of KOA is heterogeneous and prediction of its progression is challenging. Current literature suggests…

Image and Video Processing · Electrical Eng. & Systems 2023-07-04 Egor Panfilov , Simo Saarakkala , Miika T. Nieminen , Aleksei Tiulpin

The purposes of this study were to investigate: 1) the effect of placement of region-of-interest (ROI) for texture analysis of subchondral bone in knee radiographs, and 2) the ability of several texture descriptors to distinguish between…

Image and Video Processing · Electrical Eng. & Systems 2020-05-18 Neslihan Bayramoglu , Aleksei Tiulpin , Jukka Hirvasniemi , Miika T. Nieminen , Simo Saarakkala

MRI-guided radiation treatment planning is widely applied because of its superior soft-tissue contrast and no ionization radiation compared to CT-based planning. In this regard, synthetic CT (sCT) images should be generated from the…

Medical Physics · Physics 2021-05-14 Abbas Bahrami , Alireza Karimian , Hossein Arabi

Purpose: To develop and evaluate a transformer-based deep learning model for the synthesis of nephrographic phase images in CT urography (CTU) examinations from the unenhanced and urographic phases. Materials and Methods: This retrospective…

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…

We propose a 3D neural network with specific loss functions for quantitative computed tomography (QCT) noise reduction to compute micro-structural parameters such as tissue mineral density (TMD) and bone volume ratio (BV/TV) with…

Image and Video Processing · Electrical Eng. & Systems 2020-11-11 Felix Thomsen , José M. Fuertes García , Manuel Lucena , Juan Pisula , Rodrigo de Luis García , Jan Broggrefe , Claudio Delrieux

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

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…

Patient-specific bone models are essential for designing surgical guides and preoperative planning, as they enable the visualization of intricate anatomical structures. However, traditional CT-based approaches for creating bone models are…