RT Journal Article SR Electronic T1 Value and limitations of two-dimensional echocardiography for the detection of left main coronary artery disease JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 7 OP 12 VO 51 IS 1 A1 Ricardo Ronderos A1 Ernesto E. Salcedo A1 John R. Kramer A1 Conrad C. Simpfendorfer A1 Earl K. Shirey YR 1984 UL http://www.ccjm.org/content/51/1/7.abstract AB To evaluate the sensitivity and specificity of two-dimensional echocardiography for the detection of left main coronary artery disease, echocardiograms were obtained of 47 patients (38 men and 9 women) with the use of a Hewlett-Packard phase array system. Coronary arteriograms were also obtained. Three falsepositive results compared with 28 true-positive cases resulted in a specificity of 90% for two-dimensional echocardiography; 3 patients had normal echocardiograms in the presence of significant angiographic lumen narrowing. Since 9 patients had left main trunk disease, sensitivity was 67%. Our findings suggest that twodimensional echocardiography is somewhat limited in permitting visualization of left main coronary artery disease.