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Pronostic Impact of Flow Fraction Reserve on Intermediate Stenoses

2018-07-20 12:11:08 | BioPortfolio

Published on BioPortfolio: 2018-07-20T12:11:08-0400

Clinical Trials [1792 Associated Clinical Trials listed on BioPortfolio]

Analysis of Coronary CT Angiography to Identify Patients With Significant Coronary Artery Stenosis

We propose to develop a computational framework involving a novel automatic image segmentation algorithm based on CTA images, an artery model reconstruction algorithm for stenosis detectio...

Computed Tomography Coronary Angiography (CTCA) and Coronary Flow in Stenosis Analysis

The investigators' rationale was to evaluate whether a 64-slice CT scanner allows accurate measurement of computed tomographic changes in coronary artery flow profiles and whether CT flow ...

Diagnosis and Characterization of Coronary Artery Stenosis by Doppler Ultrasound

The purpose of this study is to evaluate the feasibility of acquisition of coronary blood flow velocity signals over the whole length of the LAD with transthoracic pulsed Doppler, and to e...

Validation of a Predictive Model of Coronary Fractional Flow Reserve in Patients With Intermediate Coronary Stenosis

Coronary fraction flow reserve (FFR), the ratio of the mean coronary pressure distal to a coronary stenosis to the mean aortic pressure during maximal coronary blood flow (hyperemia), defi...

Preoperative Assessment of Aortic Valve Stenosis and Coronary Artery Disease

We sought to determine whether the dual-source computed tomography assessment of aortic valve stenosis and coronary artery disease is equivalent to or even better than conventional invasiv...

PubMed Articles [2224 Associated PubMed Articles listed on BioPortfolio]

Association of TAFI gene polymorphisms with severity of coronary stenosis in stable coronary artery disease.

Coronary stenosis is a consequence of atherosclerotic plaque progression that is associated with impaired fibrinolysis. Thrombin-activatable fibrinolysis inhibitor (TAFI) and plasminogen activator inh...

sSema4D levels are increased in coronary heart disease and associated with the extent of coronary artery stenosis.

The aim of this study was to evaluate the association between serum soluble semaphorin4D (sSema4D) and coronary heart disease (CHD) and the extent of coronary artery stenosis.

Clinical usefulness of the angle between left main coronary artery and left anterior descending coronary artery for the evaluation of obstructive coronary artery disease.

A wider angle between the left anterior descending coronary artery (LAD) and left circumflex coronary artery (LCX) has been suggested to induce plaque formation in the arterial system via changes in s...

Assessment of coronary flow velocity reserve with phase-contrast cine magnetic resonance imaging in patients with heavy coronary calcification.

Coronary flow velocity reserve (CFVR) can be noninvasively measured by phase-contrast cine magnetic resonance imaging (PC-MRI). Heavy coronary calcification degrades the diagnostic accuracy for the de...

Circulating Hematopoietic Stem/Progenitor Cells are Associated with Coronary Stenoses in Patients with Coronary Heart Disease.

Inflammatory cells in atherosclerotic plaque exclusively originate from hematopoietic stem/progenitor cells (HSPCs). In this study, we investigated whether circulating HSPCs frequency related to coron...

Medical and Biotech [MESH] Definitions

The ratio of maximum blood flow to the MYOCARDIUM with CORONARY STENOSIS present, to the maximum equivalent blood flow without stenosis. The measurement is commonly used to verify borderline stenosis of CORONARY ARTERIES.

Narrowing or constriction of a coronary artery.

A complication of INTERNAL MAMMARY-CORONARY ARTERY ANASTOMOSIS whereby an occlusion or stenosis of the proximal SUBCLAVIAN ARTERY causes a reversal of the blood flow away from the CORONARY CIRCULATION, through the grafted INTERNAL MAMMARY ARTERY (internal thoracic artery), and back to the distal subclavian distribution.

Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.

Use of a balloon catheter for dilatation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of balloon dilatation in coronary arteries, ANGIOPLASTY, TRANSLUMINAL, PERCUTANEOUS CORONARY is available.

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