[Retracted] Diagnosis of Interventional Transvaginal Maternal Diseases Based on Color Doppler Ultrasound

Table 3

Comparison of PI, RI, and S/D of fetal MCA in the normal pregnancy group, ectopic pregnancy, and pregnant corpus luteum group (x ± s).

	Normal pregnancy group (80)	Ectopic pregnancy (100)	Pregnancy corpus luteum group (100)
PI	1.76  0.24	1.21  0.14	0.65  0.05
RI	0.57  0.34	0.53  0.05	4.34  0.32
S/D	1.24  0.14	4.12  0.08	3.48  0.21