Speckle tracking echocardiography analyses of myocardial contraction efficiency predict response for cardiac resynchronization therapy

Table 3 ROC analysis for CRT response

Variable	AUC	cut-off	Sensitivity (%)	Specificity (%)
Predictors of non-response
ECTR	0.682	59.02%	85.0	58.8
ECR	0.724	62.68%	85.0	52.9
Predictor of response
MLS	0.694	8.81	70.0	76.5

ECTR the ratio of effective contractile time, ECR the ratio of effective contraction, MLS maximum longitudinal strain

ISSN: 1476-7120