Table 4.
Comparison of sensitivity, specificity, PPV, NPV, and accuracy between the three sets of criteria.a
| Criteria | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| CO-RADS | 0.71 (111/156) | 0.53 (408/768) | 0.72 (111/155) | 0.96 (408/426) | 0.56 (519/924) |
| COVID-RADS | 0.56 (88/156) | 0.31 (240/768) | 0.54 (88/164) | 0.95 (240/253) | 0.35 (328/924) |
| RSNA expert consensus statement | 0.83 (129/156) | 0.49 (379/768) | 0.61 (129/213) | 0.96 (379/396) | 0.55 (508/924) |
PV, positive predictive value; NPV, negative predictive value; CO-RADS, COVID-19 Reporting and Data System; COVID-RADS, COVID-19 Imaging Reporting and Data System; RSNA = Radiological Society of North America.
a
Each case was diagnosed as positive when radiologists selected CO-RADS 5, COVID-RADS 3, or Cov19Typ for CO-RADS, COVID-RADS, or RSNA expert consensus statement, respectively, whereas negative when radiologists selected CO-RADS 1 or 2, COVID-RADS 0 or 1, or Cov19Neg or Aty.