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

Egyptian Journal of Radiology and Nuclear Medicine

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

Diagnostic parameter	Method of detection		Z value	P Significance
Diagnostic parameter	TTE	MDCT	Z value	P Significance
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)

TTE trans-thoracic echocardiography, MDCT multi-detector computed tomography, HS highly significant, NS non-significant