Correlation between body surface isopotential maps and left ventriculograms in patients with old inferoposterior myocardial infarction.
In 24 patients with old inferoposterior myocardial infarction, body surface isopotential maps were compared with left ventriculographic findings. In 16 patients with asynergy restricted to the inferior and/or posterolateral segment, surface potential abnormalities due to infarction were observed during specific phases of QRS and in specific portions on the chest surface depending on the location and extent of ventricular severe asynergy (akinesis and dyskinesis). However, the remaining eight patients with coexisting severe asynergy in the anterior, apical, or septal segment showed surface potential maps quite different from those of the former patients. It is suggested that body surface isopotential maps are a useful clinical tool for detecting the location and extent of ventricular severe asynergy in patients with old inferoposterior myocardial infarction.
D000368:Aged; D000790:Angiocardiography; D003201:Computers; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013382:Subtraction Technique