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Purpose: To improve repeatability and reproducibility across acquisition parameters and reduce bias in quantitative susceptibility mapping (QSM) of the liver, through development of an optimized regularized reconstruction algorithm for…

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…

3D human pose and shape estimation (a.k.a. "human mesh recovery") has achieved substantial progress. Researchers mainly focus on the development of novel algorithms, while less attention has been paid to other critical factors involved.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 Hui En Pang , Zhongang Cai , Lei Yang , Tianwei Zhang , Ziwei Liu

Femoroacetabular impingement (FAI) cam morphology is routinely assessed using two-dimensional alpha angles which do not provide specific data on cam size characteristics. The purpose of this study is to implement a novel, automated…

Image and Video Processing · Electrical Eng. & Systems 2021-12-07 Jessica M. Bugeja , Ying Xia , Shekhar S. Chandra , Nicholas J. Murphy , Jillian Eyles , Libby Spiers , Stuart Crozier , David J. Hunter , Jurgen Fripp , Craig Engstrom

Quantitative computed tomography (QCT) is a standard method to determine bone mineral density (BMD) in the spine. Traditionally single 8 - 10 mm thick slices have been analyzed only. Current spiral CT scanners provide true 3D acquisition…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Andre Mastmeyer , Klaus Engelke , Christina Fuchs , Willi Kalender

In this work, two-dimensional simulations of the microwave dielectric properties of models with ellipses and realistic models of trabecular bone tissue are performed. In these simulations, finite difference time domain methodology has been…

Medical Physics · Physics 2019-07-30 Ramiro M. Irastorza , C. Manuel Carlevaro , Fernando Vericat

Diffusion magnetic resonance imaging is a noninvasive imaging technique that can indirectly infer the microstructure of tissues and provide metrics which are subject to normal variability across subjects. Potentially abnormal values or…

Image and Video Processing · Electrical Eng. & Systems 2020-08-28 Samuel St-Jean , Max A. Viergever , Alexander Leemans

Aims. The main goal of this paper is to derive observational constraints on the halo mass fuction (HMF) by performing a tomographic analysis of the magnification bias signal on a sample of background submillimeter galaxies. The results can…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-15 M. M. Cueli , L. Bonavera , J. Gonzalez-Nuevo , D. Crespo , J. M. Casas , A. Lapi

Periacetabular osteotomy is a challenging surgical procedure for treating developmental hip dysplasia, providing greater coverage of the femoral head via relocation of a patient's acetabulum. Since fluoroscopic imaging is frequently used in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Robert Grupp , Mehran Armand , Russell Taylor

Axon radius is a potential biomarker for brain diseases and a crucial tissue microstructure parameter that determines the speed of action potentials. Diffusion MRI (dMRI) allows non-invasive estimation of axon radius, but accurately…

Human shape estimation has become increasingly important both theoretically and practically, for instance, in 3D mesh estimation, distance garment production and computational forensics, to mention just a few examples. As a further…

Computer Vision and Pattern Recognition · Computer Science 2022-01-27 Yansel González Tejeda , Helmut A. Mayer

The vertebral levels of the spine provide a useful coordinate system when making measurements of plaque, muscle, fat, and bone mineral density. Correctly classifying vertebral levels with high accuracy is challenging due to the similar…

Image and Video Processing · Electrical Eng. & Systems 2020-10-08 Daniel C. Elton , Veit Sandfort , Perry J. Pickhardt , Ronald M. Summers

FT-Raman spectroscopy was employed to study (in-vitro) non-altered human colorectal tissues aiming evaluate their spectral differences. The samples were collected from 39 patients, adding 144 spectra. The results enable one estabilish 3…

Tissues and Organs · Quantitative Biology 2007-05-23 P. O. Andrade , R. A. Bitar , K. Yassoyama , H. Martinho , A. M. E. Santo , P. M. Bruno , A. A. Martin

The ability of Anisotropic Minkowski Functionals (AMFs) to capture local anisotropy while evaluating topological properties of the underlying gray-level structures has been previously demonstrated. We evaluate the ability of this approach…

Image and Video Processing · Electrical Eng. & Systems 2020-02-19 Mahesh B. Nagarajan , Titas De , Eva-Maria Lochmueller , Felix Eckstein , Axel Wismueller

Diabetes is a serious chronic metabolic disease. In the recent years, more and more consumer technology enterprises focusing on human health are committed to implementing accurate and non-invasive blood glucose algorithm in their products.…

Machine Learning · Computer Science 2025-03-05 Yiting Wei , Bingo Wing-Kuen Ling , Qing Liu , Jiaxin Liu

Distal myopathy represents a genetically heterogeneous group of skeletal muscle disorders with broad clinical manifestations, posing diagnostic challenges in radiology. To address this, we propose a novel multimodal attention-aware fusion…

Estimating 3D human pose and shape from 2D images is a crucial yet challenging task. While prior methods with model-based representations can perform reasonably well on whole-body images, they often fail when parts of the body are occluded…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Chun-Han Yao , Jimei Yang , Duygu Ceylan , Yi Zhou , Yang Zhou , Ming-Hsuan Yang

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…

Image and Video Processing · Electrical Eng. & Systems 2019-07-12 Aleksei Tiulpin , Mikko Finnilä , Petri Lehenkari , Heikki J. Nieminen , Simo Saarakkala

\textbf{Purpose:} C-arm fluoroscopy's 3D reconstruction relies on accurate intrinsic calibration, which is often challenging in clinical practice. This study ensures high-precision reconstruction accuracy by re-optimizing the extrinsic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Lin Li , Benjamin Aubert , Paul Kemper , Aric Plumley

Surface analysis of the cortex is ubiquitous in human neuroimaging with MRI, e.g., for cortical registration, parcellation, or thickness estimation. The convoluted cortical geometry requires isotropic scans (e.g., 1mm MPRAGEs) and good…

Image and Video Processing · Electrical Eng. & Systems 2023-05-04 Karthik Gopinath , Douglas N. Greve , Sudeshna Das , Steve Arnold , Colin Magdamo , Juan Eugenio Iglesias