[Retracted] The Volume of T2 Low-Signal Band and the Width of the Widest Blood Vessel in Placenta Measured by MRI in Pregnant Women with Different Types of Placental Implantation and Its Differential Value

Table 4

Clinical features, MRI signs, T2 hyposignal zone volume, and the widest blood vessel width in placenta of patients with different types of PI.

Index	Adhesion type ()	Implant type ()	Penetration type ()	/
Age (years)
<35	16 (66.670)	27 (64.290)	8 (61.540)	0.100	0.951
≥35	8 (33.330)	15 (35.710)	5 (38.460)
Pregnancy
Middle stage of pregnancy	2 (8.330)	2 (4.760)	1 (7.690)	0.377	0.828
Late stage of pregnancy	22 (91.670)	40 (95.240)	12 (92.310)
History of cesarean section
Not have	2 (8.330)	5 (11.900)	0 (0.000)	1.754	0.416
Have	22 (91.670)	37 (88.100)	13 (100.000)
Abortion history
Not have	5 (20.830)	7 (16.670)	1 (7.690)	1.062	0.588
Have	19 (79.170)	35 (83.330)	12 (92.310)
Complicated with hysteromyoma
Not have	22 (91.670)	36 (85.710)	12 (92.310)	0.747	0.688
Have	2 (8.330)	6 (14.290)	1 (7.690)
MRI signs
Uneven placental signal	10 (41.670)	21 (50.000)	10 (76.920)	4.328	0.115
T2 low-signal band shadow	8 (33.330)	18 (42.860)	10 (76.920)	6.726	0.035
Uterine serosa discontinuity	2 (8.330)	2 (4.760)	1 (7.690)	0.377	0.828
Hemorrhage in placenta	1 (4.170)	2 (4.760)	1 (7.690)	0.235	0.889
T2 low-signal band volume (cm^3)				49.231	<0.001
Width of the widest blood vessel in placenta (cm)				18.599	<0.001