Gated cardiac blood pool imaging can identify an enlarged, non-contracting right atrium, facilitating the antemortem diagnosis of atrial infarction in patients with acute inferior MI.
Gated imaging may enable antemortem atrial infarction diagnosis in inferior MI; leaves open whether it alters management or outcomes.
Atrial fibrillation, coronary sinus rhythm, and slow atrial flutter developed in a patient with ECG findings of an acute inferior myocardial infarction. Hemodynamic measurements were suggestive of predominantly right ventricular involvement. A gated cardiac blood pool study demonstrated normal right and left ventricular wall motion with an enlarged, non-contracting right atrium. This led to the antemortem diagnosis of atrial fibrillation.
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Shale Gordon (1984) studied this question.
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