1990 Volume 21 Issue 1 Pages 93-106
In 51 cases with anterior myocardial infarction, diagnostic probabilities of elecrtrocardiography (ECG) and two-dimensional echocardiography (2-ED) were evaluatated in regards to site of lesion in left anterior descending coronary artery (LAD), and its distribution in the apex. Sites of responsive coronary arterial lesion were assessed in relation to first diagonal (D1) and first septal (S1) branches, and LAD extension in the apex. Upon comparison of two methods, 2-DE demonstrated the site of lesion in LAD to differentiate the proximal and distal from Sl, with more accurate diagnosteic probability. ECG demonstrated the site of lesion in LAD to differentiate the proximal and distal from D1, with little better diagnostic probability. Development and extension of the LAD in the apex was well evaluated with 2-DE. No significant difference was seen in left ventricular ejection fraction by the site of lesion in distal and proximal to S1 or D1, however, significant difference was seen in LADs with and without favorable growth. Although location of the lesion in LAD, development of LAD in the apex, and related cardiac function were able to evaluate using 2-ED alone, better diagnostic accuracy could be obtained with combined use of 2-DE and ECG.
