Differential Diagnosis of Cesarean Scar Pregnancies and Other Pregnancies Implanted in the Lower Uterus by Ultrasound Parameters

Table 2

Comparison of sonographic data between the groups.

	Cesarean scar pregnancies	Other pregnancies implanted in the lower uterus	value
Implantation site			0.316
Lower anterior part	15	3
Lower posterior part	7	5
Unknown	44	19
Gestational sac in relation to the scar			<0.0001
Close to or across the scar	4	11
Inside the scar	62	16
Trophoblastic blood flow			<0.0001
Lower anterior part	58	11
Lower posterior part	3	12
Unknown	5	4
Thickness of residual muscle (mm)			<0.0001