Accuracy of myocardial viability imaging by cardiac MRI and PET depending on left ventricular function

Table 2 Myocardial scar detection by cardiac magnetic resonance imaging (contingency table)

	Sensitivity	Specificity	PPV	NPV	Accuracy
All patients	69%	71%	62%	77%	70%
EF< 30%	79%	66%	66%	79%	72%
EF 30%-50%	64%	69%	58%	74%	67%
EF > 50%	25%	89%	41%	79%	74%

Detection of myocardial scar (score 2-4) by cardiac magnetic resonance imaging (CMR) as test parameter compared to positron emission tomography (PET). Analysis was done for the whole patient collective as well as in the three patient subgroups with different ejection fraction (EF). In patients with moderately or severely compromised EF CMR outperformed PET. NPV: Negative predictive value; PPV: Positive predictive value.