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Table 5 Comparison of diagnostic parameters of TTE and MDCT in detection of extra-cardiac vascular anomalies in TOF patients

From: The role of MDCT in the assessment of cardiac and extra-cardiac vascular defects among Egyptian children with tetralogy of Fallot and its surgical implementation

Diagnostic parameter Method of detection Z value P Significance
TTE MDCT
Sensitivity 76.9% 98% 3.489 < 0.01* (HS)
Specificity 85.7% 88.9% 0.526 > 0.05 (NS)
Positive predictive value 90.9% 98% 1.700 > 0.05 (NS)
Negative predictive value 66.7% 88.9% 2.926 < 0.01* (HS)
Diagnostic accuracy 80% 96.6% 2.896 < 0.01* (HS)
  1. TTE trans-thoracic echocardiography, MDCT multi-detector computed tomography, HS highly significant, NS non-significant