You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is ECG is poor in detecting ischemia in areas supplied by which of the following vessels? and explain in detail?
The occlusion of posterior descending aery or distal pa of lt circumflex aery lead to posterior wall MI. Posterior MI is diagnosed by placing posterior leads V7 to V9, which are continuation of precordial leads around to the left back. Circumflex aery distribution ischemia is notoriously silent on an ECG as the posterolateral wall is under-represented on a conventional 12 lead ECG Ref: Critical Decisions in Emergency and Acute Care Electrocardiography edited by William J. Brady, Jonathon D. Truwit; Manual of Cardiovascular Medicine By Brian P. Griffin, Page 528