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Table 4 Sensitivity, specificity, negative predictive value, and positive predictive value of transcranial doppler ultrasonography in comparison with transesophageal echocardiography in pfo detection

From: Transcranial doppler ultrasonography should it be the first choice for persistent foramen ovale screening?

Technique PFO (%) PPV (%) NPV (%) Sensitivity (%) Specificity (%)
Contrast-enhanced TCD 90 98 89 95 92
  1. NPV: Negative Predictive Value, PPV: Negative Predictive Value TCD: Transcranial Doppler Ultrasonography, TEE: Transesophageal Echocardiography, PFO: Patent Foramen Ovale.