Results
A total of 183 regional wall motion abnormalities (RWMA) were detected
in the DM group, of which 117 (63.93%) segments were viable myocardium;
357 RWMA were detected in non DM patients, of which 248 (69.47%)
segments of viable myocardium were detected by echocardiography. The
sensitivity, accuracy, and specificity of STE-LDDSE in detecting viable
myocardium in DM group were
70.94%、77.45%、87.88% ;
92.31%、72.73% and 85.25% for LS and LSr. In the non DM group, the
sensitivity, specificity, and accuracy of LS and LSr were
68.95%、92.66%、76.19% ; 77.42%、88.07% and 80.67%, respectively.
Further parallel diagnostic tests were conducted on LS and LSr
parameters. The sensitivity, specificity, and accuracy of detecting
viable myocardium in the DM and non DM groups were
84.62%、45.45%、70.49%, 66.53%、63.30% and 65.55%, respectively,
at rest; They were 84.62%、45.45%、70.49%, 66.53%、63.30% and
65.55%, respectively, during low dose dobutamine stress.