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Image-guided navigation of catheter devices to anatomic targets within large 3D cardiac chambers and vessels is challenging in the interventional setting due to the limitations of a conventional 2D x-ray projection format. Scanning-beam…

医学物理 · 物理学 2024-03-26 Jordan M. Slagowski

In stable coronary artery disease (CAD), reduction in mortality and/or myocardial infarction with revascularization over medical therapy has not been reliably achieved. Coronary arteries are usually extracted to perform stenosis detection.…

图像与视频处理 · 电气工程与系统科学 2021-01-26 Chen Zhao , Haipeng Tang , Daniel McGonigle , Zhuo He , Chaoyang Zhang , Yu-Ping Wang , Hong-Wen Deng , Robert Bober , Weihua Zhou

Coronary artery centerline extraction in cardiac CT angiography (CCTA) images is a prerequisite for evaluation of stenoses and atherosclerotic plaque. We propose an algorithm that extracts coronary artery centerlines in CCTA using a…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Jelmer M. Wolterink , Robbert W. van Hamersvelt , Max A. Viergever , Tim Leiner , Ivana Išgum

The availability of digital twins for the cardiovascular system will enable insightful computational tools both for research and clinical practice. This, however, demands robust and well defined models and methods for the different steps…

计算工程、金融与科学 · 计算机科学 2024-11-21 Pau Romero , Abel Pedrós , Rafael Sebastian , Miguel Lozano , Ignacio García-Fernández

Heart disease is one of the most common diseases in middle-aged citizens. Among the vast number of heart diseases, the coronary artery disease (CAD) is considered as a common cardiovascular disease with a high death rate. The most popular…

Accurate geometric quantification of the human heart is a key step in the diagnosis of numerous cardiac diseases, and in the management of cardiac patients. Ultrasound imaging is the primary modality for cardiac imaging, however acquisition…

图像与视频处理 · 电气工程与系统科学 2022-07-28 David Stojanovski , Uxio Hermida , Marica Muffoletto , Pablo Lamata , Arian Beqiri , Alberto Gomez

Four-dimensional (4D) left ventricular myocardial velocity mapping (MVM) is a cardiac magnetic resonance (CMR) technique that allows assessment of cardiac motion in three orthogonal directions. Accurate and reproducible delineation of the…

图像与视频处理 · 电气工程与系统科学 2020-12-23 Yinzhe Wu , Suzan Hatipoglu , Diego Alonso-Álvarez , Peter Gatehouse , David Firmin , Jennifer Keegan , Guang Yang

To decrease patient waiting time for diagnosis of the Coronary Artery Disease, automatic methods are applied to identify its severity using Coronary Computed Tomography Angiography scans or extracted Multiplanar Reconstruction (MPR) images,…

图像与视频处理 · 电气工程与系统科学 2020-06-16 Mariia Dobko , Bohdan Petryshak , Oles Dobosevych

This study evaluates two approaches applied to computed tomography (CT) images of patients with abdominal aortic aneurysm: one deterministic, based on tools of Approximation Theory, and one based on Artificial Intelligence. Both aim to…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Lucrezia Rinelli , Arianna Travaglini , Nicolò Vescera , Gianluca Vinti

Non-invasive detection of cardiovascular disorders from radiology scans requires quantitative image analysis of the heart and its substructures. There are well-established measurements that radiologists use for diseases assessment such as…

机器学习 · 统计学 2017-08-04 Aliasghar Mortazi , Jeremy Burt , Ulas Bagci

Conventional pixel-wise loss functions fail to enforce topological constraints in coronary vessel segmentation, producing fragmented vascular trees despite high pixel-level accuracy. We present ARIADNE, a two-stage framework coupling…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Zhan Jin , Yu Luo , Yizhou Zhang , Ziyang Cui , Yuqing Wei , Xianchao Liu , Xueying Zeng , Qing Zhang

Understanding the architecture of the human heart requires analysis of its microstructural organization across scales. With the advent of high-resolution imaging techniques such as synchrotron-based tomography, it has become possible to…

计算工程、金融与科学 · 计算机科学 2025-08-12 Joseph Brunet , Lisa Chestnutt , Matthieu Chourrout , Hector Dejea , Vaishnavi Sabarigirivasan , Peter D. Lee , Andrew C. Cook

Predictive high-fidelity finite element simulations of human cardiac mechanics co\-mmon\-ly require a large number of structural degrees of freedom. Additionally, these models are often coupled with lumped-parameter models of hemodynamics.…

计算工程、金融与科学 · 计算机科学 2020-02-18 Martin R. Pfaller , Maria Cruz Varona , Johannes Lang , Cristóbal Bertoglio , Wolfgang A. Wall

Cerebrovascular pathology significantly contributes to cognitive decline and neurological disorders, underscoring the need for advanced tools to assess vascular integrity. Three-dimensional Time-of-Flight Magnetic Resonance Angiography (3D…

图像与视频处理 · 电气工程与系统科学 2025-07-11 Abrar Faiyaz , Nhat Hoang , Giovanni Schifitto , Md Nasir Uddin

The first choice in diagnostic imaging for patients suffering from peripheral arterial disease is 2D ultrasound (US). However, for a proper imaging process, a skilled and experienced sonographer is required. Additionally, it is a highly…

This study leverages convolutional neural networks to enhance the temporal resolution of 3D angiography in intracranial aneurysms focusing on the reconstruction of volumetric contrast data from sparse and limited projections. Three…

Automated analysis of volumetric medical imaging on edge devices is severely constrained by the high memory and computational demands of 3D Convolutional Neural Networks (CNNs). This paper develops a lightweight computer vision framework…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Amirreza Parvahan , Mohammad Hoseyni , Javad Khoramdel , Amirhossein Nikoofard

Coronary angiography continues to serve as the primary method for diagnosing coronary artery disease (CAD), which is the leading global cause of mortality. The severity of CAD is quantified by the location, degree of narrowing (stenosis),…

图像与视频处理 · 电气工程与系统科学 2023-10-24 Hui Lin , Tom Liu , Aggelos Katsaggelos , Adrienne Kline

Computed tomography (CT) has been a powerful diagnostic tool since its emergence in the 1970s. Using CT data, three-dimensional (3D) structures of human internal organs and tissues, such as blood vessels, can be reconstructed using…

应用统计 · 统计学 2024-04-01 Qianhan Zeng , Jing Zhou , Ying Ji , Hansheng Wang

Background. Percutaneous coronary intervention(PCI) in stable coronary artery disease(CAD) is commonly triggered by abnormal myocardial perfusion imaging(MPI). However, due to the possibilities of multivessel disease and variability of…

医学物理 · 物理学 2020-06-15 Haipeng Tang , Robert R. Bober , Chen Zhao , Chaoyang Zhang , Huiqing Zhu , Zhuo He , Zhihui Xu , Weihua Zhou