perfusion territory
The specific myocardial region supplied by a particular coronary artery, used to correlate imaging findings with vessel-specific disease.
Full Definition
A perfusion territory represents the anatomical region of myocardium that receives blood supply from a specific coronary artery. These territories are essential for correlating perfusion defects seen on cardiac imaging with coronary artery disease in particular vessels. The standard model includes the LAD territory (anterior wall, septum), RCA territory (inferior wall, posterior wall), and circumflex territory (lateral wall), though anatomical variations exist. Understanding perfusion territories allows clinicians to predict which coronary vessel is likely diseased based on the location of perfusion abnormalities on nuclear imaging, stress echocardiography, or cardiac MRI.
Usage
Usage note: Specify the affected coronary vessel when describing perfusion territories.
In Context
- "The perfusion defect involved the RCA territory including the inferior and inferolateral walls." — Nuclear cardiology report
- "Stress-induced ischemia was noted in the LAD perfusion territory." — Stress testing interpretation