Results 91 to 100 of about 224,547 (332)

Three-dimensional reconstruction of stenosed coronary artery segments with assessment of the flow impedance [PDF]

open access: yes, 1990
In this paper preliminary results of a study about the diagnostic benefits of 3D visualization and quantitation of stenosed coronary artery segments are presented.
Hulzebosch, A.A.   +2 more
core   +2 more sources

Cardiovascular syphilis with coronary stenosis and aneurysm

open access: yesIndian Heart Journal, 2014
Cardiovascular manifestations of tertiary syphilis include aortitis, aortic root dilation, aneurysm formation, aortic regurgitation, and coronary ostial stenosis. Coronary ostial lesions have been detected in as many as 26% of patients with syphilitic aortitis.
Nagaraja Moorthy, Satyendra Tewari
openaire   +4 more sources

Harnessing Physiological Shear Stress in a Perfusion Bioreactor for Enhanced Endothelialization of Small‐Diameter Vascular Grafts

open access: yesAdvanced NanoBiomed Research, EarlyView.
Traditional static culture provides limited physiological relevance for evaluation of vascular grafts. A perfusion bioreactor system can provide more accurate in vitro model for evaluation of vascular grafts, exposing endothelial cells on 3D structure to physiological or pathological shear stress.
Praveesuda L. Michael   +10 more
wiley   +1 more source

Computed Tomography of the Coronary Arteries

open access: yesSA 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   +6 more
doaj  

Noradrenergic and cholinergic innervation of the normal human heart and changes associated with cardiomyopathy

open access: yesThe Anatomical Record, EarlyView.
Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna   +15 more
wiley   +1 more source

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

open access: yesOpen 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   +11 more
doaj   +1 more source

The Multi-center Evaluation of the Accuracy of the Contrast MEdium INduced Pd/Pa RaTiO in Predicting FFR (MEMENTO-FFR) Study. [PDF]

open access: yes, 2016
AIMS: Adenosine administration is needed for the achievement of maximal hyperaemia fractional flow reserve (FFR) assessment. The objective was to test the accuracy of Pd/Pa ratio registered during submaximal hyperaemia induced by non-ionic contrast ...
Amabile, N   +5 more
core   +1 more source

Impact of Diabetes on Long‐Term Outcomes of Percutaneous Coronary Intervention for Coronary Bifurcation Lesions

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Diabetes mellitus (DM) is a well‐known risk factor for cardiovascular diseases, including coronary artery diseases (CAD). Complex percutaneous coronary intervention (PCI) such as PCI for bifurcation lesions often yields poor outcomes, especially in DM patients.
Subin Lim   +31 more
wiley   +1 more source

Neutrophil-to-lymphocyte ratio predicts functionally significant coronary artery stenosis in patients with stable coronary artery disease

open access: yesTürk Kardiyoloji Derneği Arşivi, 2018
Objective: The aim of this study was to determine the relationship between the neutrophil-to-lymphocyte ratio (NLR) and the functional severity of coronary stenosis assessed according to the fractional flow reserve (FFR) in stable coronary artery disease
Samet Yılmaz   +5 more
doaj   +1 more source

The haemodynamic effects of collateral donation to a chronic total occlusion : implications for patient management [PDF]

open access: yes, 2015
Physiological lesion assessment in the form of Fractional Flow Reserve (FFR) is now well established for the purpose of guiding multi-vessel revascularization.
Hoye, Angela, Ladwiniec, Andrew
core   +1 more source

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