[Retracted] Application of Color Doppler Ultrasound Combined with Magnetic Resonance Imaging in Placenta Accreta

Table 5

Comparison of diagnostic efficacy of three diagnostic schemes.

Diagnostic program		Sensitivity (%)	Specificity (%)	Positive predictive value (%)	Negative predictive value (%)	Youden index
Color Doppler ultrasound	64	78.13	81.25	80.65	78.79	0.59
Magnetic resonance imaging	64	93.75	87.50	88.24	93.33	0.81
Color Doppler ultrasound combined with magnetic resonance imaging	64	100.00	100.00	100.00	100.00	1.00
		7.905	8.847	9.011	7.905	9.250
		0.005	0.001	0.000	0.005	0.000