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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Surgery. 2016 Jun 11;160(3):731–737. doi: 10.1016/j.surg.2016.04.016

Table III.

Contingency tables of 4-phase CT and 2-phase CT

Prevalence Sensitivity 95% CI PPV 95% CI
A TP* 23
FN 2
FP 1
TN§ 1
93% 92% 74–99% 96% 79–99.9%
B TP*30
FN 1
FP 4
TN§ 0
89% 97% 83–99.9% 88% 73–97%
*

TP, true positives.

FP, false positives.

FN, false negatives.

§

TN, true negatives.

CI, Confidence interval; PPV, positive predictive value.