skip to main content

Coronary Territory Mapping — EECC MCQ

Instant feedback + full explanation. One question, done properly.

EasyCoronary Artery DiseaseCoronary Territory MappingEECC

A 58-year-old man with stable angina undergoes exercise stress echocardiography. At peak exercise, new hypokinesis develops in the mid-anterior and apical segments. What coronary territory does this ischaemic territory correspond to?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — Left anterior descending artery

The LAD supplies the anterior wall, anterior septum, and apex of the LV. New wall motion abnormalities (hypokinesis, akinesis, or dyskinesis) in the mid-anterior and apical segments during stress echocardiography indicate inducible ischaemia in the LAD territory. The RCA supplies the inferior and posterior walls. The LCx supplies the lateral and posterolateral walls. Understanding coronary artery territory mapping is essential for interpreting stress imaging and correlating findings with angiographic data.

Reference: ASE/EACVI Stress Echo Guidelines; ESC (2024): CCS Guidelines