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相关论文: Generation of patient specific cardiac chamber mod…

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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…

图像与视频处理 · 电气工程与系统科学 2023-11-09 Fanwei Kong , Shawn Shadden

Cardiac parametric mapping is useful for evaluating cardiac fibrosis and edema. Parametric mapping relies on single-shot heartbeat-by-heartbeat imaging, which is susceptible to intra-shot motion during the imaging window. However, reducing…

图像与视频处理 · 电气工程与系统科学 2025-03-25 Calder D. Sheagren , Brenden T. Kadota , Jaykumar H. Patel , Mark Chiew , Graham A. Wright

Personalization of cardiac models involves the optimization of organ tissue properties that vary spatially over the non-Euclidean geometry model of the heart. To represent the high-dimensional (HD) unknown of tissue properties, most…

图像与视频处理 · 电气工程与系统科学 2020-06-04 Jwala Dhamala , Sandesh Ghimire , John L. Sapp , B. Milan Horacek , Linwei Wang

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…

Accurate cardiac motion estimation from cine cardiac magnetic resonance (CMR) images is vital for assessing cardiac function and detecting its abnormalities. Existing methods often struggle to capture heart motion accurately because they…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Reza Akbari Movahed , Abuzar Rezaee , Arezoo Zakeri , Colin Berry , Edmond S. L. Ho , Ali Gooya

The electrocardiogram (ECG) is a dependable instrument for assessing the function of the cardiovascular system. There has recently been much emphasis on precisely classifying ECGs. While ECG situations have numerous similarities, little…

信号处理 · 电气工程与系统科学 2023-11-09 Kamyar Zeinalipour , Marco Gori

In this work, we propose a Variational Autoencoder (VAE) - Generative Adversarial Networks (GAN) model that can produce highly realistic MRI together with its pixel accurate groundtruth for the application of cine-MR image cardiac…

图像与视频处理 · 电气工程与系统科学 2020-05-25 Youssef Skandarani , Nathan Painchaud , Pierre-Marc Jodoin , Alain Lalande

Probabilistic estimation of cardiac electrophysiological model parameters serves an important step towards model personalization and uncertain quantification. The expensive computation associated with these model simulations, however, makes…

Current state-of-the-art deep learning segmentation methods have not yet made a broad entrance into the clinical setting in spite of high demand for such automatic methods. One important reason is the lack of reliability caused by models…

计算机视觉与模式识别 · 计算机科学 2019-06-18 Jörg Sander , Bob D. de Vos , Jelmer M. Wolterink , Ivana Išgum

We propose a novel approach to generate samples from the conditional distribution of patient-specific cardiovascular models given a clinically aquired image volume. A convolutional neural network architecture with dropout layers is first…

定量方法 · 定量生物学 2021-09-01 Gabriel Maher , Casey Fleeter , Daniele Schiavazzi , Alison Marsden

We propose a deep learning method to model and generate synthetic aortic shapes based on representing shapes as the zero-level set of a neural signed distance field, conditioned by a family of trainable embedding vectors with encode the…

计算机视觉与模式识别 · 计算机科学 2024-09-25 Andrei Gasparovici , Alex Serban

Noninvasive reconstruction of cardiac transmembrane potential (TMP) from surface electrocardiograms (ECG) involves an ill-posed inverse problem. Model-constrained regularization is powerful for incorporating rich physiological knowledge…

图像与视频处理 · 电气工程与系统科学 2019-05-14 Sandesh Ghimire , Jwala Dhamala , Prashnna Kumar Gyawali , John L Sapp , B. Milan Horacek , Linwei Wang

Electroanatomical mapping, a keystone diagnostic tool in cardiac electrophysiology studies, can provide high-density maps of the local electric properties of the tissue. It is therefore tempting to use such data to better individualize…

最优化与控制 · 数学 2021-02-03 Thomas Grandits , Simone Pezzuto , Jolijn M. Lubrecht , Thomas Pock , Gernot Plank , Rolf Krause

Image-based computer simulation of cardiac function can be used to probe the mechanisms of (patho)physiology, and guide diagnosis and personalized treatment of cardiac diseases. This paradigm requires constructing simulation-ready meshes of…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Fanwei Kong , Shawn C. Shadden

Electroanatomic mapping as routinely acquired in ablation therapy of ventricular tachycardia is the gold standard method to identify the arrhythmogenic substrate. To reduce the acquisition time and still provide maps with high spatial…

Electrocardiogram signals are omnipresent in medicine. A vital aspect in the analysis of this data is the identification and classification of heart beat types which is often done through automated algorithms. Advancements in neural…

机器学习 · 计算机科学 2019-11-13 Tom Van Steenkiste , Dirk Deschrijver , Tom Dhaene

Computational models of cardiac structure and function are increasingly central to the development of subject-specific cardiac digital twins, enabling improved characterization of contractile dysfunction, pathological remodeling, and…

The human heart is a sophisticated system composed of four cardiac chambers with distinct shapes, which function in a coordinated manner. Existing shape models of the heart mainly focus on the ventricular chambers and they are derived from…

图像与视频处理 · 电气工程与系统科学 2026-03-31 Qiang Ma , Qingjie Meng , Yicheng Wu , Shuo Wang , Mengyun Qiao , Steven Niederer , Declan P. O'Regan , Paul M. Matthews , Wenjia Bai

Convolutional neural networks (CNN) have had unprecedented success in medical imaging and, in particular, in medical image segmentation. However, despite the fact that segmentation results are closer than ever to the inter-expert…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Nathan Painchaud , Youssef Skandarani , Thierry Judge , Olivier Bernard , Alain Lalande , Pierre-Marc Jodoin

Electrocardiogram (ECG), a technique for medical monitoring of cardiac activity, is an important method for identifying cardiovascular disease. However, analyzing the increasing quantity of ECG data consumes a lot of medical resources. This…

信号处理 · 电气工程与系统科学 2022-10-13 Xinyao Hou , Shengmei Qin , Jianbo Su
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