Ignite Creation Date:
2025-12-25 @ 1:22 AM
Ignite Modification Date:
2025-12-25 @ 1:22 AM
Study NCT ID:
NCT04185493
Status:
UNKNOWN
Last Update Posted:
2020-06-05
First Post:
2019-12-01
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Coronary Artery Geometry and the Severity of Coronary Atherosclerosis
Sponsor:
Aristotle University Of Thessaloniki
Organization:
Study Overview
Official Title:
Assessment of Coronary Artery Geometry With Coronary CT Angiography: Evaluation of Atherosclerotic Plaque Burden and Composition
Status:
UNKNOWN
Status Verified Date:
2020-06
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
GEOMETRY-CTA
Brief Summary:
The purpose of this study is to investigate the potential association of coronary artery geometry, based on coronary CT angiography (CCTA), with the complexity and the severity of coronary atherosclerosis.
Detailed Description:
The angulation of the side branch take-off has been reported to influence the severity of atherosclerosis in coronary bifurcations, as larger angles have been associated with increased plaque burden. Data from computational fluid dynamics studies have confirmed this finding by demonstrating that even in the absence of alterations in the amount of branch flow, a wide angle between the side branches intensifies flow perturbations, increases the spatial endothelial shear stress (ESS) variations in the bifurcation region and the low ESS in the lateral walls, thereby augmenting the atherosclerosis-prone environment. The magnitude of reversed flow, the extension of the recirculation zone and the duration of flow separation during the pulse cycle comprise other haemodynamic parameters which are important in atherogenesis and are amplified by an increased bifurcation angle.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: