Table 5.
Vertebra-based diagnostic accuracy results of every reader using magnetic resonance imaging (MRI) series for the assessment of acute vertebral fracture lines
| Sensitivity | Specificity | PPV | NPV | Accuracy | |
|---|---|---|---|---|---|
| Overall |
337/445 (0.76) [0.71–0.80] |
3047/3205 (0.95) [0.94–0.96] |
337/495 (0.68) [0.64–0.71] |
3047/3155 (0.97) [0.96–0.97] |
3384/3650 (0.93) [0.92–0.94] |
| Reader 1 |
70/89 (0.79) [0.69–0.87] |
610/641 (0.95) [0.93–0.97] |
70/101 (0.69) [0.61–0.76] |
610/629 (0.97) [0.96–0.98] |
680/730 (0.93) [0.91–0.95] |
| Reader 2 |
73/89 (0.82) [0.72–0.89] |
607/641 (0.95) [0.93–0.96] |
73/107 (0.68) [0.60–0.75] |
607/623 (0.97) [0.96–0.98] |
680/730 (0.93) [0.91–0.95] |
| Reader 3 |
70/89 (0.79) [0.69–0.87] |
607/641 (0.95) [0.93–0.96] |
70/104 (0.67) [0.59–0.74] |
607/626 (0.97) [0.96–0.98] |
677/730 (0.93) [0.91–0.95] |
| Reader 4 |
63/89 (0.71) [0.60–0.80] |
611/641 (0.95) [0.93–0.97] |
63/93 (0.68) [0.59–0.75] |
611/637 (0.96) [0.94–0.97] |
674/730 (0.92) [0.90–0.94] |
| Reader 5 |
61/89 (0.69) [0.58–0.78] |
612/641 (0.95) [0.94–0.97] |
61/90 (0.68) [0.59–0.76] |
612/640 (0.96) [0.94–0.97] |
673/730 (0.92) [0.90–0.94] |
Statistical measures are presented as fractions and decimal values (round brackets), with 95% confidence intervals in square brackets
PPV positive predictive value, NPV negative predictive value