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4D flow MRI is a non-invasive imaging method that can measure blood flow velocities over time. However, the velocity fields detected by this technique have limitations due to low resolution and measurement noise. Coordinate-based neural…

Image and Video Processing · Electrical Eng. & Systems 2023-02-28 Simone Saitta , Marcello Carioni , Subhadip Mukherjee , Carola-Bibiane Schönlieb , Alberto Redaelli

Computer-aided diagnosis for low-dose computed tomography (CT) based on deep learning has recently attracted attention as a first-line automatic testing tool because of its high accuracy and low radiation exposure. However, existing methods…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Kyung-Su Kim , Seong Je Oh , Ju Hwan Lee , Myung Jin Chung

Patient-specific cardiac modeling combines geometries of the heart derived from medical images and biophysical simulations to predict various aspects of cardiac function. However, generating simulation-suitable models of the heart from…

Image and Video Processing · Electrical Eng. & Systems 2023-11-09 Fanwei Kong , Shawn Shadden

Medical image analysis, especially segmenting a specific organ, has an important role in developing clinical decision support systems. In cardiac magnetic resonance (MR) imaging, segmenting the left and right ventricles helps physicians…

Computer Vision and Pattern Recognition · Computer Science 2018-02-23 Mina Nasr-Esfahani , Majid Mohrekesh , Mojtaba Akbari , S. M. Reza Soroushmehr , Ebrahim Nasr-Esfahani , Nader Karimi , Shadrokh Samavi , Kayvan Najarian

Automatic segmentation of myocardial contours and relevant areas like infraction and no-reflow is an important step for the quantitative evaluation of myocardial infarction. In this work, we propose a cascaded convolutional neural network…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Yichi Zhang

Estimating scene flow in RGB-D videos is attracting much interest of the computer vision researchers, due to its potential applications in robotics. The state-of-the-art techniques for scene flow estimation, typically rely on the knowledge…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Ravi Kumar Thakur , Snehasis Mukherjee

Myocardial characterization is essential for patients with myocardial infarction and other myocardial diseases, and the assessment is often performed using cardiac magnetic resonance (CMR) sequences. In this study, we propose a fully…

Image and Video Processing · Electrical Eng. & Systems 2020-08-19 Xiaoran Zhang , Michelle Noga , Kumaradevan Punithakumar

Automatic segmentation of left ventricle (LV) myocardium in cardiac short-axis cine MR images acquired on subjects with myocardial infarction is a challenging task, mainly because of the various types of image inhomogeneity caused by the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Dongqing Zhang , Ilknur Icke , Belma Dogdas , Sarayu Parimal , Smita Sampath , Joseph Forbes , Ansuman Bagchi , Chih-Liang Chin , Antong Chen

Automatic labelling of anatomical structures, such as coronary arteries, is critical for diagnosis, yet existing (non-deep learning) methods are limited by a reliance on prior topological knowledge of the expected tree-like structures. As…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Yadan Li , Mohammad Ali Armin , Simon Denman , David Ahmedt-Aristizabal

Accurate and reproducible measurements of the aortic diameters are crucial for the diagnosis of cardiovascular diseases and for therapeutic decision making. Currently, these measurements are manually performed by healthcare professionals,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-11 Axel Aguerreberry , Ezequiel de la Rosa , Alain Lalande , Elmer Fernandez

Background and Objective: Hemodynamic analysis of blood flow through arteries and veins is critical for diagnosing cardiovascular diseases, such as aneurysms and stenoses, and for investigating cardiovascular parameters, such as turbulence…

Automatic evaluation of myocardium and pathology plays an important role in the quantitative analysis of patients suffering from myocardial infarction. In this paper, we present a cascaded convolutional neural network framework for…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Jun Ma

Cardiac CT is often used clinically in electrophysiology to evaluate cardiac morphology. One such case is to evaluate patients with Atrial Fibrillation (AF). AF can cause regions of slow blood flow and blood stasis through the left atrial…

Image and Video Processing · Electrical Eng. & Systems 2025-02-06 Lauren M. Severance , Andrew M. Kahn , Juan C. del Alamo , Elliot R. McVeigh

Computational modeling of cardiovascular function has become a critical part of diagnosing, treating and understanding cardiovascular disease. Most strategies involve constructing anatomically accurate computer models of cardiovascular…

Image and Video Processing · Electrical Eng. & Systems 2025-01-28 Numi Sveinsson Cepero , Shawn C. Shadden

We combine confocal imaging, microfluidics and image analysis to record 3D-images of cells in flow. This enables us to recover the full 3D representation of several hundred living cells per minute. Whereas 3D confocal imaging has thus far…

Fluid Dynamics · Physics 2017-09-19 S. Quint , A. F. Christ , A. Guckenberger , S. Himbert , L. Kaestner , S. Gekle , C. Wagner

Contemporary high-density mapping techniques and preoperative CT/MRI remain time and resource intensive in localizing arrhythmias. AI has been validated as a clinical decision aid in providing accurate, rapid real-time analysis of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Dorsa EPMoghaddam , Feng Gao , Drew Bernard , Kavya Sinha , Mehdi Razavi , Behnaam Aazhang

The 3D volumetric shape of the heart's left ventricle (LV) myocardium (MYO) wall provides important information for diagnosis of cardiac disease and invasive procedure navigation. Many cardiac image segmentation methods have relied on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Meng Ye , Qiaoying Huang , Dong Yang , Pengxiang Wu , Jingru Yi , Leon Axel , Dimitris Metaxas

Importance: Coronary algorithm for cardiac sub structures and prospective real-time surveillance of cardiac dose exposure. Methods: Retro and prospective study to validate AI auto-segmentation. A 3D UNet was trained on 560 thoracic CT scans…

The aim of this study is to use image-processing techniques developed in the field of astrophysics as inspiration for a novel approach to the three-dimensional (3D) imaging of periprocedural medical data, with the intention of providing…

Medical Physics · Physics 2019-02-05 I. Brewis , J. A. McLaughlin

Accurate delineation of the left ventricle (LV) is an important step in evaluation of cardiac function. In this paper, we present an automatic method for segmentation of the LV in cardiac CT angiography (CCTA) scans. Segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Majd Zreik , Tim Leiner , Bob D. de Vos , Robbert W. van Hamersvelt , Max A. Viergever , Ivana Isgum