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Table 3 sensitivity, specificity, PPVa and NPVb for pincer type morphology comparing radiographs and dynamic CT scans with the per-operative assessment

From: Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement

 SensitivitySpecificityPPVaNPVb
LCE angle on X-ray82%39%43%80%
Dynamic CT impingement84%51%49%85%
  1. aPositive predictive value
  2. bNegative predictive value