Table 3:

Accuracy of PCT as a diagnostic test for infarct identification on follow-up CT and MRI

n Test +n Test −Sensitivity (%)Specificity (%)PPV (%)NPV (%)Accuracy (%)95% CI
Acute NCCT description (test) for any lesion at follow-up (condition)67388043.396.6982351.2(48.8–53.5)
9258
PCT description (test) toward any lesion at follow-up (condition)126031380.157.991.233.967.9(64.7–71.0)
117161
PCT description (test) toward any lesion at MRI follow-up (condition)51626066.579.496.222.876.8(74.8–78.7)
2077
  • Note:—PPV indicates positive predictive value; NPV, negative predictive value; +, positive; −, negative; n, number of patients.