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Segmenting a structural magnetic resonance imaging (MRI) scan is an important pre-processing step for analytic procedures and subsequent inferences about longitudinal tissue changes. Manual segmentation defines the current gold standard in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-07 Alex Fedorov , Jeremy Johnson , Eswar Damaraju , Alexei Ozerin , Vince Calhoun , Sergey Plis

The segmentation of the left ventricle (LV) from CINE MRI images is essential to infer important clinical parameters. Typically, machine learning algorithms for automated LV segmentation use annotated contours from only two cardiac phases,…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Nicoló Savioli , Miguel Silva Vieira , Pablo Lamata , Giovanni Montana

The segmentation of atrial scan images is of great significance for the three-dimensional reconstruction of the atrium and the surgical positioning. Most of the existing segmentation networks adopt a 2D structure and only take original…

Image and Video Processing · Electrical Eng. & Systems 2023-01-12 Yuhan Xie , Zhiyong Zhang , Shaolong Chen , Changzhen Qiu

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, characterised by a rapid and irregular electrical activation of the atria. Treatments for AF are often ineffective and few atrial biomarkers exist to automatically…

Image and Video Processing · Electrical Eng. & Systems 2020-09-01 Ana Lourenço , Eric Kerfoot , Connor Dibblin , Ebraham Alskaf , Mustafa Anjari , Anil A Bharath , Andrew P King , Henry Chubb , Teresa M Correia , Marta Varela

Atrial fibrillation (AF) represents the most prevalent type of cardiac arrhythmia for which treatment may require patients to undergo ablation therapy. In this surgery cardiac tissues are locally scarred on purpose to prevent electrical…

Image and Video Processing · Electrical Eng. & Systems 2025-08-07 Franz Thaler , Darko Stern , Gernot Plank , Martin Urschler

For compression fracture detection and evaluation, an automatic X-ray image segmentation technique that combines deep-learning and level-set methods is proposed. Automatic segmentation is much more difficult for X-ray images than for CT or…

Medical Physics · Physics 2019-04-17 Kang Cheol Kim , Hyun Cheol Cho , Tae Jun Jang , Jong Mun Choi , Jin Keun Seo

Multi-atlas segmentation approach is one of the most widely-used image segmentation techniques in biomedical applications. There are two major challenges in this category of methods, i.e., atlas selection and label fusion. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Heran Yang , Jian Sun , Huibin Li , Lisheng Wang , Zongben Xu

The functional analysis of the left atrium (LA) is important for evaluating cardiac health and understanding diseases like atrial fibrillation. Cine MRI is ideally placed for the detailed 3D characterization of LA motion and deformation but…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Christoforos Galazis , Samuel Shepperd , Emma Brouwer , Sandro Queirós , Ebraham Alskaf , Mustafa Anjari , Amedeo Chiribiri , Jack Lee , Anil A. Bharath , Marta Varela

Cardiac segmentation from late gadolinium enhancement MRI is an important task in clinics to identify and evaluate the infarction of myocardium. The automatic segmentation is however still challenging, due to the heterogeneous intensity…

Image and Video Processing · Electrical Eng. & Systems 2019-06-26 Qian Yue , Xinzhe Luo , Qing Ye , Lingchao Xu , Xiahai Zhuang

Unlike Right Atrium (RA), Left Atrium (LA) presents distinctive challenges, including much thinner myocardial walls, complex and irregular morphology, as well as diversity in individual's structure, making off-the-shelf methods designed for…

Image and Video Processing · Electrical Eng. & Systems 2024-05-29 Abdul Qayyum , Moona Mazher , Angela Lee , Jose A Solis-Lemus , Imran Razzak , Steven A Niederer

Automatic segmentation of organs-at-risk (OAR) in computed tomography (CT) is an essential part of planning effective treatment strategies to combat lung and esophageal cancer. Accurate segmentation of organs surrounding tumours helps…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Sulaiman Vesal , Nishant Ravikumar , Andreas Maier

In CT angiography, the accurate segmentation of abdominal aortic aneurysms (AAAs) is difficult due to large anatomical variability, low-contrast vessel boundaries, and the close proximity of organs whose intensities resemble vascular…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Osamah Sufyan , Martin Brückmann , Ralph Wickenhöfer , Babette Dellen , Uwe Jaekel

One of the most common tasks in medical imaging is semantic segmentation. Achieving this segmentation automatically has been an active area of research, but the task has been proven very challenging due to the large variation of anatomy…

Computer Vision and Pattern Recognition · Computer Science 2018-04-10 Holger R. Roth , Chen Shen , Hirohisa Oda , Masahiro Oda , Yuichiro Hayashi , Kazunari Misawa , Kensaku Mori

Planning of radiotherapy involves accurate segmentation of a large number of organs at risk, i.e. organs for which irradiation doses should be minimized to avoid important side effects of the therapy. We propose a deep learning method for…

Image and Video Processing · Electrical Eng. & Systems 2019-07-04 Pawel Mlynarski , Hervé Delingette , Hamza Alghamdi , Pierre-Yves Bondiau , Nicholas Ayache

Deep learning has shown great promise in the ability to automatically annotate organs in magnetic resonance imaging (MRI) scans, for example, of the brain. However, despite advancements in the field, the ability to accurately segment…

Image and Video Processing · Electrical Eng. & Systems 2024-03-26 Cosmin Ciausu , Deepa Krishnaswamy , Benjamin Billot , Steve Pieper , Ron Kikinis , Andrey Fedorov

We present a fully-automated segmentation and quantification of the left atrial (LA) fibrosis and scars combining two cardiac MRIs, one is the target late gadolinium-enhanced (LGE) image, and the other is an anatomical MRI from the same…

Computer Vision and Pattern Recognition · Computer Science 2018-10-23 Fuping Wu , Lei Li , Guang Yang , Tom Wong , Raad Mohiaddin , David Firmin , Jennifer Keegan , Lingchao Xu , Xiahai Zhuang

The performance of supervised deep learning methods for medical image segmentation is often limited by the scarcity of labeled data. As a promising research direction, semi-supervised learning addresses this dilemma by leveraging unlabeled…

Image and Video Processing · Electrical Eng. & Systems 2024-05-13 Zihang Liu , Chunhui Zhao

We present a novel automated method to segment the myocardium of both left and right ventricles in MRI volumes. The segmentation is consistent in 3D across the slices such that it can be directly used for mesh generation. Two specific…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Qiao Zheng , Hervé Delingette , Nicolas Duchateau , Nicholas Ayache

Accurate segmentation of the right ventricle (RV) is a crucial step in the assessment of the ventricular structure and function. Yet, due to its complex anatomy and motion segmentation of the RV has not been as largely studied as the left…

Image and Video Processing · Electrical Eng. & Systems 2021-06-10 Maria A. Zuluaga , M. Jorge Cardoso , Sébastien Ourselin

In this paper, we propose a new deep learning framework for an automatic myocardial infarction evaluation from clinical information and delayed enhancement-MRI (DE-MRI). The proposed framework addresses two tasks. The first task is…

Image and Video Processing · Electrical Eng. & Systems 2020-11-02 Kibrom Berihu Girum , Youssef Skandarani , Raabid Hussain , Alexis Bozorg Grayeli , Gilles Créhange , Alain Lalande