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Valvular heart diseases are growing concern in impoverished parts of the world, such as Southern-Africa, claiming more than 31 % of total deaths related to cardiovascular diseases. The ability to model the effects of regurgitant and…

Medical Physics · Physics 2022-04-11 Ryno Laubscher , Jacques Liebenberg , Philip Herbst

Natural ventilation is gaining popularity in response to an increasing demand for a sustainable and healthy built environment, but the design of a naturally ventilated building can be challenging due to the inherent variability in the…

Fluid Dynamics · Physics 2023-02-09 Yunjae Hwang , Catherine Gorlé

A numerical framework for the 'real-time' estimation of the infection risk from airborne diseases (e.g., SARS-CoV-2) in indoor spaces such as hospitals, restaurants, cinemas or teaching rooms is proposed. The developed model is based on the…

In this work, we present a computational fluid-structure interaction (FSI) study for a healthy patient-specific pulmonary arterial tree using the unified continuum and variational multiscale (VMS) formulation we previously developed. The…

Computational Physics · Physics 2020-08-19 Ju Liu , Weiguang Yang , Ingrid S. Lan , Alison L. Marsden

We develop a novel data-driven approach to modeling the atmospheric boundary layer. This approach leads to a nonlocal, anisotropic synthetic turbulence model which we refer to as the deep rapid distortion (DRD) model. Our approach relies on…

Fluid Dynamics · Physics 2021-10-07 Brendan Keith , Ustim Khristenko , Barbara Wohlmuth

Computer modeling can provide quantitative insight into cardiac fluid dynamics phenomena that are not evident from standard imaging tools. We propose a new approach to modeling left ventricle fluid dynamics based on an image-driven…

The aim was to investigate mechanical and functional failure of diffuse axonal injury (DAI) in nerve bundles following frontal head impacts, by finite element simulations. Anatomical changes following traumatic brain injury are simulated at…

Tissues and Organs · Quantitative Biology 2020-09-02 Ilaria Cinelli , Michel Destrade , Peter McHugh , Antonia Trotta , Michael Gilchrist , Maeve Duffy

Supervised machine learning has enabled accurate pathology detection in brain MRI, but requires training data from diseased subjects that may not be readily available in some scenarios, for example, in the case of rare diseases.…

Image and Video Processing · Electrical Eng. & Systems 2025-06-13 Ana Lawry Aguila , Peirong Liu , Oula Puonti , Juan Eugenio Iglesias

Spherical deconvolution is a widely used approach to quantify fiber orientation distribution from diffusion MRI data. The damped Richardson-Lucy (dRL) is developed to perform robust spherical deconvolution on single shell diffusion MRI…

Medical Physics · Physics 2020-06-22 Fenghua Guo , Alexander Leemans , Max A. Viergever , Flavio Dell'Acqua , Alberto De Luca

The coronavirus disease (COVID-19) pandemic has changed our lives and still poses a challenge to science. Numerous studies have contributed to a better understanding of the pandemic. In particular, inhalation of aerosolised pathogens has…

Populations and Evolution · Quantitative Biology 2022-09-02 Simon Rahn , Marion Gödel , Gerta Köster , Gesine Hofinger

Mechanical ventilation is a key form of life support for patients with pulmonary impairment. Healthcare workers are required to continuously adjust ventilator settings for each patient, a challenging and time consuming task. Hence, it would…

Machine Learning · Computer Science 2022-10-07 Flemming Kondrup , Thomas Jiralerspong , Elaine Lau , Nathan de Lara , Jacob Shkrob , My Duc Tran , Doina Precup , Sumana Basu

According to the Lancet report on the global burden of disease published in October 2020, air pollution is among the five highest risk factors for global health, reducing life expectancy on average by 20 months. This paper describes a…

Applications · Statistics 2023-01-18 D K Arvind , S Maiya

Diffusion MRI is the modality of choice to study alterations of white matter. In past years, various works have used diffusion MRI for automatic classification of AD. However, classification performance obtained with different approaches is…

Ventricular Fibrillation (VF) is a malignant cardiac arrhythmia and the leading cause of sudden cardiac death, characterized by disorganized, high-frequency ventricular activity that results in the rapid loss of coordinated pump function…

Biological Physics · Physics 2025-11-04 Artemii Remizov , Sergey Lapin

Patient-ventilator asynchrony (PVA) is a common and critical issue during mechanical ventilation, affecting up to 85% of patients. PVA can result in clinical complications such as discomfort, sleep disruption, and potentially more severe…

Machine Learning · Computer Science 2025-03-14 Xuan-May Le , Ling Luo , Uwe Aickelin , Minh-Tuan Tran , David Berlowitz , Mark Howard

Respiratory diseases impose a significant burden on global health, with current diagnostic and management practices primarily reliant on specialist clinical testing. This work aims to develop machine learning-based algorithms to facilitate…

Machine Learning · Computer Science 2024-09-06 Negar Orangi-Fard , Alexandru Bogdan , Hersh Sagreiya

Diffusion models are important in tissue engineering as they enable an understanding of molecular delivery to cells in tissue constructs. As three-dimensional (3D) tissue constructs become larger, more intricate, and more clinically…

Tissues and Organs · Quantitative Biology 2015-12-22 Richard J. McMurtrey

Abdominal magnetic resonance imaging (MRI) provides a straightforward way of characterizing tissue and locating lesions of patients as in standard diagnosis. However, abdominal MRI often suffers from respiratory motion artifacts, which…

Image and Video Processing · Electrical Eng. & Systems 2019-06-25 Wenhao Jiang , Zhiyu Liu , Kit-Hang Lee , Shihui Chen , Yui-Lun Ng , Qi Dou , Hing-Chiu Chang , Ka-Wai Kwok

Accurate quantification of the extent of lung pathological patterns (fibrosis, ground-glass opacity, emphysema, consolidation) is prerequisite for diagnosis and follow-up of interstitial lung diseases. However, segmentation is challenging…

Image and Video Processing · Electrical Eng. & Systems 2025-01-08 Rezkellah Noureddine Khiati , Pierre-Yves Brillet , Radu Ispas , Catalin Fetita

Dynamic MRI is a technique of acquiring a series of images continuously to follow the physiological changes over time. However, such fast imaging results in low resolution images. In this work, abdominal deformation model computed from…

Image and Video Processing · Electrical Eng. & Systems 2019-10-11 Chompunuch Sarasaen , Soumick Chatterjee , Mario Breitkopf , Domenico Iuso , Georg Rose , Oliver Speck
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