Results 31 to 40 of about 219,198 (311)

Coronary Microcirculation Downstream Non‐Infarct‐Related Arteries in the Subacute Phase of Myocardial Infarction: Implications for Physiology‐Guided Revascularization

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Concerns exist about reliability of pressure‐wire‐guided coronary revascularization of non‐infarct‐related arteries (non‐IRA). We investigated whether physiological assessment of non‐IRA during the subacute phase of myocardial infarction might
Hernán Mejía‐Rentería, Joo Myung Lee, Nina W. van der Hoeven, Nieves Gonzalo, Pilar Jiménez‐Quevedo, Luis Nombela‐Franco, Iván J. Núñez‐Gil, Pablo Salinas, María Del Trigo, Enrico Cerrato, Niels van Royen, Paul Knaapen, Bon‐Kwon Koo, Carlos Macaya, Antonio Fernández‐Ortiz, Javier Escaned   +15 more
doaj   +1 more source

Three-Dimensional Angiographic Characteristics versus Functional Stenosis Severity in Fractional and Coronary Flow Reserve Discordance: A DEFINE FLOW Sub Study

Diagnostics, 2022
Background: Coronary angiography alone is insufficient to identify lesions associated with myocardial ischemia that may benefit from revascularization.
Valerie Stegehuis, Jelmer Westra, Coen Boerhout, Martin Sejr-Hansen, Ashkan Eftekhari, Hernan Mejía-Renteria, Maribel Cambero-Madera, Niels Van Royen, Hitoshi Matsuo, Masafumi Nakayama, Maria Siebes, Evald Høj Christiansen, Tim Van de Hoef, Jan Piek   +13 more
doaj   +1 more source

Transthoracic super-resolution ultrasound localisation microscopy of myocardial vasculature in patients [PDF]

, 2023
Micro-vascular flow in the myocardium is of significant importance clinically but remains poorly understood. Up to 25% of patients with symptoms of coronary heart diseases have no obstructive coronary arteries and have suspected microvascular diseases. However, such microvasculature is difficult to image in vivo with existing modalities due to the lack
arxiv   +1 more source

Fractional Flow Reserve or Coronary Flow Reserve for the Assessment of Myocardial Perfusion [PDF]

Current Cardiology Reports, 2018
Accumulating evidence exists for the value of coronary physiology for clinical decision-making in ischemic heart disease (IHD). The most frequently used pressure-derived index to assess stenosis severity, the fractional flow reserve (FFR), has long been considered the gold standard for this purpose, despite the fact that the FFR assesses solely ...
Tim P. van de Hoef, Jan J. Piek, Valérie E. Stegehuis, Gilbert W. M. Wijntjens   +3 more
openaire   +3 more sources

Vessel fractional flow reserve in assessment of non-culprit lesions in ST elevation myocardial infarction

Open Heart, 2021
Objectives We sought to evaluate the physiology of non-culprit lesions by using vessel fractional flow reserve (vFFR) among patients with ST elevation myocardial infarction (STEMI) and multivessel disease (MVD). Methods From January 2017 to December 2019,
Chun-Chin Chang, Chuang Ju Ming, Yin-Hao Lee, Y. Tsai, Ya-Wen Lu, R. Chou, Cheng-hsueh Wu, T. Lu, Po‐Hsun Huang, Shing-Jong Lin   +9 more
semanticscholar   +1 more source

Effect of the ratio of vessel-specific volume to fractional myocardial mass on fractional flow reserve

Experimental Biology and Medicine, 2021
This study aimed to examine whether the ratio of vessel-specific coronary arterial lumen volume to the fraction of myocardial mass (VR/MR) affects myocardial ischemia. We proposed a calculation method for VR/MR, and compared the ratio of total epicardial coronary arterial lumen volume to left ventricular myocardial mass (V/M) with VR/MR in predicting ...
Jincheng Liu, Bao Li, Junling Ma, Xue Wang, Liyuan Zhang, Boyan Mao, Youjun Liu   +6 more
openaire   +2 more sources

Computed Tomography Myocardial Perfusion Imaging With Transesophageal Atrial Pacing Stress Test in Patients With Borderline Stenoses in the Coronary Arteries: a Comparison With Fractional Flow Reserve.

Kardiologiia, 2021
Aim      To evaluate the diagnostic accuracy of cardiac perfusion computed tomography (PCT) with transesophageal electrocardiostimulation (TE ECS) for detection of ischemia in patients with borderline coronary stenosis (50-75 %) compared to measurements ...
Y. A. Omarov, T. Veselova, R. Shakhnovich, T. Sukhinina, N. Zhukova, I. Merkulova, D. V. Pevzner, G. K. Arutunyan, V. Mironov, E. Merkulov, A. Samko, S. Ternovoy, I. I. Staroverov   +12 more
semanticscholar   +1 more source

Multiparametric Cardiac 18F-FDG PET: Pilot Comparison of FDG Delivery Rate with 82Rb Myocardial Blood Flow [PDF]

, 2020
Myocardial blood flow (MBF) and flow reserve are usually quantified in the clinic with positron emission tomography (PET) using a perfusion-specific radiotracer (e.g. 82Rbchloride). However, the clinical accessibility of existing perfusion tracers remains limited.
arxiv   +1 more source

CT Assessment of Myocardial Perfusion and Fractional Flow Reserve in Coronary Artery Disease: A Review of Current Clinical Evidence and Recent Developments

Korean Journal of Radiology, 2021
Coronary computed tomography angiography (CCTA) is routinely used for anatomical assessment of coronary artery disease (CAD). However, invasive measurement of fractional flow reserve (FFR) is the current gold standard for the diagnosis of hemodynamically
C. Yun, C. Hung, M. Wen, Y. Wan, A. So
semanticscholar   +1 more source

(F)Utility of invasive haemodynamic measurements to guide percutaneous intervention in chronic coronary artery disease

Swiss Medical Weekly, 2015
Percutaneous coronary intervention (PCI) in chronic stable coronary artery disease has not been shown to reduce the incidence of myocardial infarction or death.
Christian Seiler
doaj   +1 more source