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Objective: This work evaluates a new approach for calculating the left-ventricular (LV) early filling propagation velocity (VP) from color M-Mode (CMM) echocardiograms using wavelet analysis. Unlike current approaches, the method requires…

医学物理 · 物理学 2019-10-29 Sreyashi Chakraborty , Hiroyuki Iwano , Michael E. Hall , Pavlos P. Vlachos

Large prospective epidemiological studies acquire cardiovascular magnetic resonance (CMR) images for pre-symptomatic populations and follow these over time. To support this approach, fully automatic large-scale 3D analysis is essential. In…

图像与视频处理 · 电气工程与系统科学 2019-07-04 Rahman Attar , Marco Pereanez , Christopher Bowles , Stefan K. Piechnik , Stefan Neubauer , Steffen E. Petersen , Alejandro F. Frangi

3D motion estimation from cine cardiac magnetic resonance (CMR) images is important for the assessment of cardiac function and the diagnosis of cardiovascular diseases. Current state-of-the art methods focus on estimating dense…

图像与视频处理 · 电气工程与系统科学 2023-09-26 Qingjie Meng , Wenjia Bai , Declan P O'Regan , and Daniel Rueckert

Cardiac segmentation of atriums, ventricles, and myocardium in computed tomography (CT) images is an important first-line task for presymptomatic cardiovascular disease diagnosis. In several recent studies, deep learning models have shown…

图像与视频处理 · 电气工程与系统科学 2024-10-01 Sanguk Park , Minyoung Chung

One of the first steps in the diagnosis of most cardiac diseases, such as pulmonary hypertension, coronary heart disease is the segmentation of ventricles from cardiac magnetic resonance (MRI) images. Manual segmentation of the right…

图像与视频处理 · 电气工程与系统科学 2019-08-22 Yaman Dang , Deepak Anand , Amit Sethi

Segmentation of the left ventricle in cardiac magnetic resonance imaging MRI scans enables cardiologists to calculate the volume of the left ventricle and subsequently its ejection fraction. The ejection fraction is a measurement that…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Garvit Chhabra , J. H. Gagan , J. R. Harish Kumar

Cardiac Magnetic Resonance (CMR) imaging serves as the gold-standard for evaluating cardiac morphology and function. Typically, a multi-view CMR stack, covering short-axis (SA) and 2/3/4-chamber long-axis (LA) views, is acquired for a…

图像与视频处理 · 电气工程与系统科学 2025-07-03 Yundi Zhang , Chen Chen , Suprosanna Shit , Sophie Starck , Daniel Rueckert , Jiazhen Pan

Alterations in the geometry and function of the heart define well-established causes of cardiovascular disease. However, current approaches to the diagnosis of cardiovascular diseases often rely on subjective human assessment as well as…

Broadly speaking, the objective in cardiac image segmentation is to delineate the outer and inner walls of the heart to segment out either the entire or parts of the organ boundaries. This paper will focus on MR images as they are the most…

计算机视觉与模式识别 · 计算机科学 2015-02-17 Tizita Nesibu Shewaye

Left ventricular segmentation is essential for measuring left ventricular function indices. Segmentation of one or several images requires an initial guess of the contour. It is hypothesized here that creating an initial guess by first…

计算机视觉与模式识别 · 计算机科学 2015-10-13 Yael Petrank , Nahum Smirin , Yossi Tsadok , Zvi Friedman , Peter Lysiansky , Dan Adam

Congenital Heart Disease (CHD) is a group of cardiac malformations present already during fetal life, representing the prevailing category of birth defects globally. Our aim in this study is to aid 3D fetal vessel topology visualisation in…

A joint image reconstruction and segmentation approach based on disentangled representation learning was trained to enable cardiac cine MR imaging in real-time and under free-breathing. An exploratory feasibility study tested the proposed…

In recent years, a variety of deep learning networks for cardiac MRI (CMR) segmentation have been developed and analyzed. However, nearly all of them are focused on cine CMR under breathold. In this work, accuracy of deep learning methods…

图像与视频处理 · 电气工程与系统科学 2024-02-20 Martin Schilling , Christina Unterberg-Buchwald , Joachim Lotz , Martin Uecker

Cardiac cine magnetic resonance imaging (MRI) has been used to characterize cardiovascular diseases (CVD), often providing a noninvasive phenotyping tool.~While recently flourished deep learning based approaches using cine MRI yield…

图像与视频处理 · 电气工程与系统科学 2023-01-24 Xiaofeng Liu , Fangxu Xing , Hanna K. Gaggin , C. -C. Jay Kuo , Georges El Fakhri , Jonghye Woo

Temporal echocardiography image registration is a basis for clinical quantifications such as cardiac motion estimation, myocardial strain assessments, and stroke volume quantifications. In past studies, deep learning image registration…

图像与视频处理 · 电气工程与系统科学 2023-09-12 Md. Kamrul Hasan , Haobo Zhu , Guang Yang , Choon Hwai Yap

Automated construction of surface geometries of cardiac structures from volumetric medical images is important for a number of clinical applications. While deep-learning-based approaches have demonstrated promising reconstruction precision,…

图像与视频处理 · 电气工程与系统科学 2021-09-15 Fanwei Kong , Nathan Wilson , Shawn C. Shadden

Automated cardiac segmentation from magnetic resonance imaging datasets is an essential step in the timely diagnosis and management of cardiac pathologies. We propose to tackle the problem of automated left and right ventricle segmentation…

计算机视觉与模式识别 · 计算机科学 2017-04-28 Phi Vu Tran

Echocardiography is a cornerstone for managing heart failure (HF), with Left Ventricular Ejection Fraction (LVEF) being a critical metric for guiding therapy. However, manual LVEF assessment suffers from high inter-observer variability,…

图像与视频处理 · 电气工程与系统科学 2026-05-26 Jyun-Ping Kao , Jiaxin Yang , C. -C. Jay Kuo , Jonghye Woo

Cardiac resynchronization therapy (CRT) is a treatment that is used to compensate for irregularities in the heartbeat. Studies have shown that this treatment is more effective in heart patients with left bundle branch block (LBBB)…

信号处理 · 电气工程与系统科学 2023-06-27 Alireza Sadeghi , Alireza Rezaee , Farshid Hajati

Segmenting human left ventricle (LV) in magnetic resonance imaging (MRI) images and calculating its volume are important for diagnosing cardiac diseases. In 2016, Kaggle organized a competition to estimate the volume of LV from MRI images.…

计算机视觉与模式识别 · 计算机科学 2018-01-23 Fangzhou Liao , Xi Chen , Xiaolin Hu , Sen Song