Results 11 to 20 of about 1,806,820 (366)

Deep learning analysis of coronary arteries in cardiac CT angiography for detection of patients requiring invasive coronary angiography [PDF]

arXiv, 2019
In patients with obstructive coronary artery disease, the functional significance of a coronary artery stenosis needs to be determined to guide treatment. This is typically established through fractional flow reserve (FFR) measurement, performed during invasive coronary angiography (ICA).
Išgum, Ivana, Khalili, Nadieh, Leiner, Tim, van Hamersvelt, Robbert W., Viergever, Max A., Voskuil, Michiel, Wolterink, Jelmer M., Zreik, Majd   +7 more
arxiv   +3 more sources

A Computationally Efficient Approach to Segmentation of the Aorta and Coronary Arteries Using Deep Learning [PDF]

IEEE Access, 2021
Early detection and diagnosis of coronary artery disease could reduce the risk of developing a heart attack. The coronary arteries are optimally visualised using computed tomography coronary angiography (CTCA) imaging.
Wing Keung Cheung, Robert Bell, Arjun Nair, Leon J. Menezes, Riyaz Patel, Simon Wan, Kacy Chou, Jiahang Chen, Ryo Torii, Rhodri H. Davies, James C. Moon, Daniel C. Alexander, Joseph Jacob   +12 more
doaj   +3 more sources

A Case of Spontaneous Multivessel Coronary Artery Spasm That Underwent Stent Implantation Accompanying ST Segment Elevation on Inferior Electrocardiographic Leads [PDF]

Case Reports in Cardiology, 2016
Coronary artery spasm is usually defined as a focal constriction of a coronary artery segment, which is reversible, and causes myocardial ischaemia by restricting coronary blood flow.
Nuray Kahraman Ay, Muharrem Nasifov, Ömer Goktekin   +2 more
doaj   +3 more sources

Coronary Artery Centerline Extraction in Cardiac CT Angiography Using a CNN-Based Orientation Classifier [PDF]

, 2018
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 convolutional neural network (CNN).
Išgum, Ivana, Leiner, Tim, van Hamersvelt, Robbert W., Viergever, Max A., Wolterink, Jelmer M.   +4 more
arxiv   +3 more sources

Coronary Artery Anomalies [PDF]

Circulation, 2021
Coronary artery anomalies (CAAs) are a group of congenital conditions characterized by abnormal origin or course of any of the 3 main epicardial coronary arteries. Although CAAs have been identified as a common underlying condition in young athletes with sudden cardiac death, the widespread use of invasive and noninvasive coronary imaging has led to ...
Francesco Gentile, Vincenzo Castiglione, Raffaele De Caterina   +2 more
openaire   +4 more sources

Advantages of Multiposition Scanning in Echocardiographic Assessment of the Severity of Discordant Aortic Stenosis

Pathophysiology, 2023
Aim of the study: The aim of this study was to perform a comparative analysis of severity of discordant aortic stenosis (AS) assessment using multiposition scanning and the standard apical window.
Elena Zelikovna Golukhova, Inessa Viktorovna Slivneva, Inga Yur’evna Farulova, Ivan Ivanovich Skopin, Damir Ildarovich Marapov, Dar’ya Vladimirovna Murysova, Yuliya Dmitrievna Pirushkina, Irina Vasilyevna Volkovskaya   +7 more
doaj   +1 more source

Image quality improvement in low‐dose chest CT with deep learning image reconstruction

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Objectives To investigate the clinical utility of deep learning image reconstruction (DLIR) for improving image quality in low‐dose chest CT in comparison with 40% adaptive statistical iterative reconstruction‐Veo (ASiR‐V40%) algorithm. Methods This retrospective study included 86 patients who underwent low‐dose CT for lung cancer screening ...
Qian Tian, Xinyu Li, Jianying Li, Yannan Cheng, Xinyi Niu, Shumeng Zhu, Wenting Xu, Jianxin Guo   +7 more
wiley   +1 more source

Coronary artery established through amniote evolution

eLife, 2023
Coronary arteries are a critical part of the vascular system and provide nourishment to the heart. In humans, even minor defects in coronary arteries can be lethal, emphasizing their importance for survival.
Kaoru Mizukami, Hiroki Higashiyama, Yuichiro Arima, Koji Ando, Norihiro Okada, Katsumi Kose, Shigehito Yamada, Jun K Takeuchi, Kazuko Koshiba-Takeuchi, Shigetomo Fukuhara, Sachiko Miyagawa-Tomita, Hiroki Kurihara   +11 more
doaj   +1 more source

Coronary arterial spasm in single coronary artery. [PDF]

Circulation, 1981
A 48-year-old man developed severe chest pain and became unconscious. Coronary cineangiography revealed single coronary artery of the type L2b by Sharbaugh and White. Ergonovine, 0.2 mg i.v., produced coronary arterial spasm in the right coronary artery.
Yasushi Koiwaya, T Tajimi, Masafumi Nakamura, Kunihiko Yamamoto, T Inou, Akira Takeshita, Yasuhiko Orita, Arahito Mitsutake   +7 more
openaire   +3 more sources

An EAPCI Expert Consensus Document on Ischaemia with Non-Obstructive Coronary Arteries in Collaboration with European Society of Cardiology Working Group on Coronary Pathophysiology & Microcirculation Endorsed by Coronary Vasomotor Disorders International Study Group.

European Heart Journal, 2020
This consensus document, a summary of the views of an expert panel organized by the European Association of Percutaneous Cardiovascular Interventions (EAPCI), appraises the importance of ischaemia with non-obstructive coronary arteries (INOCA).
V. Kunadian, A. Chieffo, P. Camici, C. Berry, J. Escaned, A. Maas, E. Prescott, N. Karam, Y. Appelman, C. Fraccaro, G. L. Buchanan, S. Manzo-Silberman, R. Al-Lamee, E. Regar, A. Lansky, A. Lansky, J. Abbott, L. Badimón, D. Duncker, R. Mehran, D. Capodanno, A. Baumbach, A. Baumbach   +22 more
semanticscholar   +1 more source