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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