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Table 2 Comparison between CT and Digital Subtraction Angiography (DSA) findings with or without contrast extravasation in pelvic trauma patients who underwent embolisation

From: Trans-arterial embolisation (TAE) in haemorrhagic pelvic injury: review of management and mid-term outcome of a major trauma centre

 

CT + ve

CT –ve

Total

Diagnostic Statistical Evaluation of Trauma CT

DSA + ve

10

9

19

Sensitivity = 90.9% (95% CI = 58.7–99.8%)

DSA –ve

1

4

5

Specificity = 30.8% (95% CI = 9.1–61.4%)

Total

11

13

24

PLR = 1.3 (95% CI = 0.9–2%)

NLR = 0.3 (95% CI = 0.04–2.3%)

PPV = 52.6% (95% CI = 42.5–62.6%)

NPV = 80% (95% CI = 34.2–96.9%)

  1. CI confidence interval, PLR positive likelihood ratio, NLR negative likelihood ratio, PPV positive predictive value, NPV negative predictive value