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相关论文: 3D CT-Based Coronary Calcium Assessment: A Feature…

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Accurate segmentation of coronary arteries remains a significant challenge in clinical practice, hindering the ability to effectively diagnose and manage coronary artery disease. The lack of large, annotated datasets for model training…

Coronary artery calcification (CAC) is a strong and independent predictor of cardiovascular disease (CVD). However, manual assessment of CAC often requires radiological expertise, time, and invasive imaging techniques. The purpose of this…

计算机视觉与模式识别 · 计算机科学 2024-02-16 Andrew M. Nguyen , Jianfei Liu , Tejas Sudharshan Mathai , Peter C. Grayson , Ronald M. Summers

We assessed the benefit of combining stress cardiac CT perfusion (CCTP) myocardial blood flow (MBF) with coronary CT angiography (CCTA) using our innovative CCTP software. By combining CCTA and CCTP, one can uniquely identify a flow…

As a potential non-invasive biomarker for ischaemic stroke, intracranial arterial calcification (IAC) could be used for stroke risk assessment on CT head scans routinely acquired for other reasons (e.g. trauma, confusion). Artificial…

Functionally significant coronary artery disease (CAD) is caused by plaque buildup in the coronary arteries, potentially leading to narrowing of the arterial lumen, i.e. coronary stenosis, that significantly obstructs blood flow to the…

图像与视频处理 · 电气工程与系统科学 2023-08-10 Nils Hampe , Sanne G. M. van Velzen , Jean-Paul Aben , Carlos Collet , Ivana Išgum

Vascular calcification is implicated as an important factor in major adverse cardiovascular events (MACE), including heart attack and stroke. A controversy remains over how to integrate the diverse forms of vascular calcification into…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Mehdi Ramezanpour , Anne M. Robertson , Yasutaka Tobe , Xiaowei Jia , Juan R. Cebral

Objective: This study aims to evaluate the functional significance of coronary stenosis by analyzing low-level radiomic features of the pericoronary adipose tissue (PCAT) surrounding the lesions, which are indicative of its inflammation…

图像与视频处理 · 电气工程与系统科学 2025-02-20 Marta Pillitteri , Guido Nannini , Simone Saitta , Luca Mariani , Riccardo Maragna , Andrea Baggiano , Gianluca Pontone , Alberto Redaelli

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…

图像与视频处理 · 电气工程与系统科学 2024-03-05 Yadan Li , Mohammad Ali Armin , Simon Denman , David Ahmedt-Aristizabal

Coronary computed tomography angiography (CCTA) provides 3D information on obstructive coronary artery disease, but cannot fully visualize high-resolution features within the vessel wall. Intravascular imaging, in contrast, can spatially…

图像与视频处理 · 电气工程与系统科学 2025-09-10 Karim Kadry , Abhishek Karmakar , Andreas Schuh , Kersten Peterson , Michiel Schaap , David Marlevi , Charles Taylor , Elazer Edelman , Farhad Nezami

Targeted diagnosis and treatment plans for patients with coronary artery disease vary according to atherosclerotic plaque component. Coronary CT angiography (CCTA) is widely used for artery imaging and determining the stenosis degree.…

图像与视频处理 · 电气工程与系统科学 2023-08-14 Jun Li , Kexin Li , Yafeng Zhou , S. Kevin Zhou

The accuracy of coronary artery disease (CAD) diagnosis is dependent on a variety of factors, including demographic, symptom, and medical examination, ECG, and echocardiography data, among others. In this context, artificial intelligence…

人工智能 · 计算机科学 2023-08-30 Elham Nasarian , Danial Sharifrazi , Saman Mohsenirad , Kwok Tsui , Roohallah Alizadehsani

The electrocardiogram (ECG) is a key diagnostic tool in cardiovascular health. Single-lead ECG recording is integrated into both clinical-grade and consumer wearables. While self-supervised pretraining of foundation models on unlabeled ECGs…

机器学习 · 计算机科学 2025-12-03 Yuxuan Shu , Peter H. Charlton , Fahim Kawsar , Jussi Hernesniemi , Mohammad Malekzadeh

Coronary artery calcium (CAC) burden quantified in low-dose chest CT is a predictor of cardiovascular events. We propose an automatic method for CAC quantification, circumventing intermediate segmentation of CAC. The method determines a…

计算机视觉与模式识别 · 计算机科学 2017-12-11 Bob D. de Vos , Nikolas Lessmann , Pim A. de Jong , Max A. Viergever , Ivana Isgum

Use expert visualization or conventional clinical indices can lack accuracy for borderline classications. Advanced statistical approaches based on eigen-decomposition have been mostly concerned with shape and motion indices. In this paper,…

图像与视频处理 · 电气工程与系统科学 2019-09-27 Irem Cetin , Gerard Sanroma , Steffen E. Petersen , Sandy Napel , Oscar Camara , Miguel-Angel Gonzalez Ballester , Karim Lekadir

Coronary calcification creates blooming artifacts in Computed Tomography Angiography (CTA), severely hampering the diagnosis of lumen stenosis. While Deep Convolutional Neural Networks (DCNNs) like Dense-Unet have shown promise in removing…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Mo Chen

Coronary artery disease (CAD) remains the leading cause of death globally, with computed tomography coronary angiography (CTCA) serving as a key diagnostic tool. However, coronary arterial analysis using CTCA, such as identifying…

图像与视频处理 · 电气工程与系统科学 2025-08-12 Shisheng Zhang , Ramtin Gharleghi , Sonit Singh , Daniel Moses , Dona Adikari , Arcot Sowmya , Susann Beier

Non-invasive colorectal cancer (CRC) screening represents a key opportunity to improve colonoscopy participation rates and reduce CRC mortality. This study explores the potential of the gut-liver axis for predicting colorectal neoplasia…

Background and objective: CTA is a gold standard of preoperative diagnosis of abdominal aorta and typically used for geometric-only characteristic extraction. We assume that a model describing the dynamic behavior of the contrast agent in…

Background: Computed Tomography Angiography (CTA) is crucial for cerebrovascular disease diagnosis. Dynamic CTA is a type of imaging that captures temporal information about the We aim to develop and evaluate two segmentation techniques to…

医学物理 · 物理学 2025-02-17 Shrikanth Yadav , Jisoo Kim , Geoffrey Young , Lei Qin

Coronary artery disease (CAD) is a leading cause of cardiovascular-related mortality, and accurate stenosis detection is crucial for effective clinical decision-making. Coronary angiography remains the gold standard for diagnosing CAD, but…

图像与视频处理 · 电气工程与系统科学 2025-03-25 Baixiang Huang , Yu Luo , Guangyu Wei , Songyan He , Yushuang Shao , Xueying Zeng