Results 11 to 20 of about 239,895 (232)

Relationship between epicardial fat volume on cardiac CT and atherosclerosis severity in three-vessel coronary artery disease: a single-center cross-sectional study [PDF]

BMC Cardiovascular Disorders, 2022
Background The ideal treatment strategy for stable three-vessel coronary artery disease (CAD) patients are difficult to determine and for patients undergoing conservative treatment, imaging evidence of coronary atherosclerotic severity progression ...
Yu Sun, Xiao-gang Li, Kai Xu, Jie Hou, Hong-rui You, Rong-rong Zhang, Miao Qi, Li-bo Zhang, Li-sheng Xu, Stephen E. Greenwald, Ben-qiang Yang   +10 more
doaj   +2 more sources

Partial Vessels Annotation-based Coronary Artery Segmentation with Self-training and Prototype Learning [PDF]

arXiv, 2023
Coronary artery segmentation on coronary-computed tomography angiography (CCTA) images is crucial for clinical use. Due to the expertise-required and labor-intensive annotation process, there is a growing demand for the relevant label-efficient learning algorithms.
Qi, Yaolei, Yang, Guanyu, Zhang, Xiaolei, Zhang, Zheng   +3 more
arxiv   +2 more sources

Primary congenital anomalies of the coronary arteries and relation to atherosclerosis: an angiographic study in Lebanon [PDF]

Journal of Cardiothoracic Surgery, 2009
Background Most coronary artery anomalies are congenital in origin. This study angiographically determined the prevalence of different forms of anomalous aortic origins of coronary anomalies and their anatomic variation in a selected adult Lebanese ...
Sayegh Said, Al-Tannir Mohammad, Itani Ziad, Eid Ali H, Samaha Ali   +4 more
doaj   +4 more sources

Usefulness of Proximal Coronary Wave Speed for Wave Intensity Analysis in Diseased Coronary Vessels [PDF]

Frontiers in Cardiovascular Medicine, 2020
Background: Wave speed is needed to separate net wave intensity into forward and backward traveling components. However, wave speed in diseased coronary arteries cannot be assessed from hemodynamic measurements obtained distal to a stenosis.
Lorena Casadonte, Jan Baan, Jan J. Piek, Maria Siebes   +3 more
doaj   +2 more sources

Relation of Perivascular Adipose Tissues on Computed Tomography to Coronary Vasospasm [PDF]

Reviews in Cardiovascular Medicine
Background: Coronary computed tomography angiography (CTA) can be used to quantitatively and qualitatively evaluate the characteristics of perivascular adipose tissue (PVAT), including PVAT volume and perivascular fat attenuation index
Kazunari Asada, Yuichi Saito, Hiroyuki Takaoka, Hideki Kitahara, Yoshio Kobayashi   +4 more
doaj   +2 more sources

Numerical analysis of the impact of flow rate, heart rate, vessel geometry, and degree of stenosis on coronary hemodynamic indices [PDF]

BMC Cardiovascular Disorders, 2018
Background The stenosis of the coronary arteries is usually caused by atherosclerosis. Hemodynamic significance of patient-specific coronary stenoses and the risk of its progression may be assessed by comparing the hemodynamic effects induced by flow ...
Zbigniew Malota, Jan Glowacki, Wojciech Sadowski, Marcin Kostur   +3 more
doaj   +3 more sources

Correlation between hemodynamics assessed by FAI combined with CT-FFR and plaque characteristics in coronary artery stenosis [PDF]

BMC Medical Imaging
Background While both CT-FFR and FAI are found to be associated with the development of CAD, their relationship with hemodynamics and plaque characteristics remains unclear.
Bo Duan, Shuqing Deng, Runyang Xu, Yongsheng Wang, Kewu He   +4 more
doaj   +2 more sources

Paroxysmal Atrial Fibrillation during Spasm Provocation Test with Acetylcholine: Clinical Characteristics of Patients and Effect on Coronary Microvascular Function Measurements [PDF]

Reviews in Cardiovascular Medicine
Background: Atrial fibrillation (AF) is a complication that occurs following a spasm provocation test (SPT) with acetylcholine (ACh). However, the characteristics of patients with AF remain unclear.
Hiroki Teragawa, Chikage Oshita, Yu Hashimoto, Shuichi Nomura   +3 more
doaj   +2 more sources

VEGF-B Promotes Endocardium-Derived Coronary Vessel Development and Cardiac Regeneration [PDF]

, 2021
cited By 1Background: Recent discoveries have indicated that, in the developing heart, sinus venosus and endocardium provide major sources of endothelium for coronary vessel growth that supports the expanding myocardium.
Alitalo, Kari, Armstrong, Emma, Betsholtz, Christer, Djonov, Valentin, He, Liqun, Hemanthakumar, Karthik Amudhala, Hlushchuk, Ruslan, Huan, Xiuzheng, Khoma, Oleksiy-Zakhar, Kivelä, Riikka, Mervaala, Eero, Paech, Jennifer, Räsänen, Markus, Sultan, Ibrahim, Sun, Ying, Tang, Juan, Yu, Wei, Zhou, Bin   +17 more
core   +2 more sources

Immunolocalization of KATP channel subunits in mouse and rat cardiac myocytes and the coronary vasculature. [PDF]

, 2005
BACKGROUND: Electrophysiological data suggest that cardiac KATP channels consist of Kir6.2 and SUR2A subunits, but the distribution of these (and other KATP channel subunits) is poorly defined.
Artman, M, Coetzee, WA, Dhar Chowdhury, P, Giblin, JP, Han, S, Lanning, J, Lopez, G, Morrissey, A, Nakamura, TY, Parachuru, L, Rosner, E, Tinker, A, Tong, X, Yoshida, H   +13 more
core   +3 more sources