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Updated: Aug 14, 2026

Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
[Human coronary arterial patterns (author's transl)]
Insights
Coronary artery supply areas show significant variation, particularly in the posterior ventricular wall and apex. Understanding these anatomical differences is crucial for diagnosing and treating heart conditions.
Area of Science:
- Cardiovascular Anatomy
- Medical Imaging
- Human Physiology
Context:
- Coronary artery anatomy dictates myocardial perfusion.
- Variations in coronary artery supply can impact clinical outcomes.
- Post-mortem angiography provides detailed insights into vascular territories.
Purpose:
- To delineate the anatomical limits of the three major coronary arteries.
- To quantify the variability in myocardial supply territories.
- To identify common patterns and variations in coronary artery branching.
Summary:
- Post-mortem angiography of 400 human hearts revealed significant variations in the supply areas of the right, left descending, and left circumflex coronary arteries.
- The posterior ventricular wall and apex exhibited the greatest variability. The normal pattern, with the left ventricular posterior wall supplied by both right and left circumflex branches, occurred in 82% of cases.
- Variations included right-coronary dominance (10%), left-dominant patterns (8%), and frequent dorsal extension of the left descending branch at the apex (70%). The left coronary artery showed substantial branching variations in the anterior wall.
Impact:
- Provides essential anatomical data for interventional cardiology and cardiac surgery.
- Enhances understanding of myocardial infarction patterns and risk stratification.
- Contributes to improved diagnostic accuracy in cardiovascular imaging and interpretation.
Abstract:
Limits of the supply area of the three large coronary arteries (right, left descending and left circumscribed branches) were determined by post-mortem angiography of 400 human hearts. The largest variation was demonstrated in the region of the posterior ventricular wall and the apex. Most frequently the border of the supply region between right and left circumflex branches extended across the middle of the left posterior wall. Hearts in which the left ventricular posterior wall was supplied from both right and left circumflex branches (normal type) constituted 82% of all cases. In the right-coronary dominant type (10%) the left ventricular posterior wall, at least at the base, was supplied by the right coronary artery, while in the left-dominant type (8%) the right coronary artery did not supply any part of the left posterior wall. At the apex the left descending branch rose dorsally by about 0.2-5.0 cm in 70% of cases, while the posterior interventricular branch only rarely supplied the apex (1.1%). The left coronary artery showed most variations in the anterior wall. It divided into two in 41%, into three with an additional diagonal branch in 53% and into four in 6%.
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