Table 2.

Diagnostic accuracy of LV dysfunction as assessed in controlled trials.

LV dysfunction (EF<55%)	Validation	Sens	Spec	Acc	PPV	NPV
Friedrich et al., Circulation 1998 (9)	Clinical	100%	100%	100%	100%	100%
Laissy et al., Chest 2002 (11)	Clinical	62%	100%	75%	100%	58%
Laissy et al., Radiology 2005 (37)*	Clinical	46%	62%	57%	37%	70%
Abdel-Aty et al., J Am Coll Cardiol 2005 (13)	Clinical	38%	100%	61%	100%	49%
Gutberlet et al., Radiology 2008 (34)	Histology	50%	63%	55%	65%	48%
Pooled data (n=276)		54%	76%	64%	71%	60%

Sens: Sensitivity; Spec: Specificity; Acc: Accuracy; PPV: Positive predictive value; NPV: Negative predictive value.