Results 91 to 100 of about 154,315 (305)

Computed Tomography of the Coronary Arteries

SA Heart Journal, 2017
MSCT Coronary Angiography is a fast developing non-invasive diagnostic technique that can detect a coronary stenosis. The detection of a coronary stenosis is hampered by limited image quality and by motion artefacts and extensive calcifications ...
P.J. de Feyter, A. Weustink, F. Alberghina, K. Gruszczynska, N. van Pelt, F. Pugliese, N. Mollet   +6 more
doaj  

Clinical and Physiological Predictors of Acetylcholine‐Induced Coronary Spasm in ANOCA/INOCA Patients: A Retrospective Cohort Study

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background A substantial proportion of patients with angina and/or ischemia are found to have non‐obstructive coronary arteries (ANOCA/INOCA). Their symptoms can sometimes be explained by coronary microvascular dysfunction and/or vasospasm. Selecting patients for acetylcholine testing remains challenging, and the procedure is not trivial in ...
Jeremie Buri, Aurelia Zimmerli, Thabo Mahendiran, Adil Salihu, Victor Weerts, Olivier Muller, David Meier, Stephane Fournier   +7 more
wiley   +1 more source

Optimising coronary imaging decisions with machine learning: an external validation study

Open Heart
Background Exclusion of coronary stenosis in individuals with suggestive symptoms is challenging. Cardiac CT or coronary angiography is often used but is inefficient and costly and involves risks.
Floor Groepenhoff, Leonard Hofstra, Sophie Heleen Bots, Saskia Haitjema, Imo Hoefer, L. Malin Overmars, Bram van Es, Mark C. H. De Groot, G. Aernout Somsen, I. Igor Tulevski, Hester M. den Ruijter, Wouter W. van Solinge   +11 more
doaj   +1 more source

Coronary artery bypass surgery in the elderly : is it worthwhile? [PDF]

, 2013
Objectives: To evaluate the early outcomes after coronary surgery in the elderly. Methods: A retrospective analysis (April 1995- January 2012) of mortality, morbidity and hospital stay, derived from a single surgeon’s practice.
Manche, Alexander
core  

Fractured and embolized coronary stent mimicking significant internal carotid stenosis

, 2006
We describe the case of 77-year-old woman who underwent five coronary angiographies in 9 months due to in-stent re-stenosis of Cypher-Stents, and who finally required coronary artery bypass grafting surgery.
Carrel, Thierry P, Immer, Franz F, Heller, Georg, Dick, Florian   +3 more
core   +1 more source

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn, Matthew A. Soderstrom, Ariana Ramirez, John‐Henry Dean, Raj Shah, Debanshu Roy, Kenneth Stone, Ariel Vinas, Bryan Ramsey, Charles Lin, Robert Chilton   +10 more
wiley   +1 more source

Development of a deep learning algorithm for detecting significant coronary artery stenosis in whole-heart coronary magnetic resonance angiography

Journal of Cardiovascular Magnetic Resonance
Background: Whole-heart coronary magnetic resonance angiography (CMRA) enables noninvasive and accurate detection of coronary artery stenosis. Nevertheless, the visual interpretation of CMRA is constrained by the observer's experience, necessitating ...
Masafumi Takafuji, Masaki Ishida, Takuma Shiomi, Ryohei Nakayama, Miyuko Fujita, Shintaro Yamaguchi, Yuzo Washiyama, Motonori Nagata, Yasutaka Ichikawa, Katsuhiro Inoue, Satoshi Nakamura, Hajime Sakuma   +11 more
doaj   +1 more source

Diagnostic performance of coronary computed tomography angiography stenosis score for coronary stenosis

BMC Medical Imaging
Abstract Background Coronary computed tomography angiography stenosis score (CCTA-SS) is a proposed diagnosis score that considers the plaque characteristics, myocardial function, and the diameter reduction rate of the lesions.
Qing-feng Xiong, Xiao-rong Fu, Lei-zhi Ku, Di Zhou, Sheng-peng Guo, Wen-sheng Zhang   +5 more
openaire   +3 more sources

Echocardiography‐Assisted Stenting of the Ductus Venosus in Infracardiac TAPVC: Report of a New Technique and Review of the Literature

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Neonates with infracardiac total anomalous pulmonary venous connection (TAPVC) frequently require urgent treatment. If surgical repair is contraindicated due to extreme prematurity, interventional stenting of the ductus venosus (DV) has been introduced successfully to postpone surgery.
Simon Schmid, Michael Hofbeck, Johannes Nordmeyer, Ralf Rauch, Jörg Michel   +4 more
wiley   +1 more source

Prevalence, risk factors and association of renal artery stenosis with coronary artery disease in patients undergoing coronary angiography in Ibn-Al Bitar center for cardiac surgery

مجلة كلية الطب, 2017
Background:-Atherosclerosis is a systemic disease that often affects multiple vascular distributions in a single patient. The increased prevalence of renal artery stenosis in association with coronary artery disease has been well documented.
Khalil S. Khalaf, Ghazi F. Haji, Ghassan M. Mahmood, Muthanna Al- Quraishi   +3 more
doaj   +1 more source