Table 1.
Reader | Technique | Sensitivity | PPV | AFROC-AUC | |||||
---|---|---|---|---|---|---|---|---|---|
1 | Gadoxetic acid | 104/145 | 72 % | (62–84 %) | 104/106 | 98 % | (95–100 %) | 0.86 | (0.79–0.92) |
Gadoxetic acid + gadofosveset | 130/145 | 90 % | (83–97 %) | 130/137 | 95 % | (91–99 %) | 0.92 | (0.87–0.97) | |
P value | P=0.0038 | P = 0.051 | P=0.0020 | ||||||
2 | Gadoxetic acid | 103/145 | 71 % | (61–82 %) | 103/114 | 90 % | (79–100 %) | 0.87 | (0.81–0.93) |
Gadoxetic acid + gadofosveset | 124/145 | 86 % | (78–94 %) | 124/141 | 88 % | (77–100 %) | 0.93 | (0.88–0.97) | |
P value | P=0.0038 | P=0.071 | P =0.0017 |
Numbers indicate lesions that were used for calculating the percentages with 95 % confidence intervals (in parenthesis). Sensitivities and specificities are calculated using each marked lesion as readers’ judgment for a positive finding. P values < 0.05 indicate statistical significant differences, significant values are in bold
PPV positive predictive value, AFROC alternative free-response receiver-operating characteristic, AUC area under the curve