Value of two-dimensional echocardiography in evaluating XXXX : a randomized blinded analysis.

@entity1 @entity712 @entity583 @entity384 @entity453
Two-dimensional echocardiography at rest was used to analyze segmental wall motion abnormalities for detecting @entity453 in @entity1 with and without a history of @entity583 . One hundred twenty-five echocardiograms were analyzed in a randomized, blinded fashion. They were obtained from 55 consecutive @entity1 found to have significant @entity453 at angiography, 59 consecutive normal subjects and 11 @entity1 with @entity384 . The overall sensitivity of two-dimensional echocardiography was relatively low at 67%. However, specificity was 99%. The sensitivity was higher in @entity1 with past @entity583 than in those without @entity583 (81 versus 42%), as expected. Echocardiography can detect segmental wall motion abnormalities in some @entity1 with @entity453 and no overt prior @entity583 . This was highlighted by nine such @entity1 with @entity453 and no prior @entity583 or electrocardiographic Q waves who were found to have segmental wall motion abnormalities. A semiquantitative, two-dimensional echocardiographic segmental wall motion score was derived for 47 @entity1 and was correlated with angiographic left ventricular ejection fraction (r = 0.71). This score differentiated @entity1 with a normal ejection fraction (greater than 50%) from those with a depressed ejection fraction (less than 50%): 1.1 +/- 1.6 versus 6.9 +/- 3.1 (p less than 0.001). Almost all @entity1 (92%) with an echocardiographic score of five or more had an abnormal ejection fraction of less than 50%. In @entity1 with chronic @entity712 , the echocardiogram separated those with @entity384 from those with @entity453 .(ABSTRACT TRUNCATED AT 250 WORDS)
