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Table 2 Sensitivity, specificity, positive and negative predictive values for pericardial effusion and hematoma of transthoracic echocardiography using computer tomography scans as standard of reference

From: Delayed cardiac tamponade after open heart surgery - is supplemental CT imaging reasonable?

  Pericardial effusion Hematoma
Sensitivity 75% 33%
Specificity 64% 83%
Positive predictive value 75% 50%
Negative predictive value 64% 71%
  1. Calculation by Fisher’s exact test.