[Retracted] Doppler Ultrasound under Image Denoising Algorithm in the Diagnosis and Treatment of Fetal Growth Restriction Using Aspirin Combined with Low-Molecular-Weight Heparin

Table 4

Comparison on fetal MCA BFPs and AFI before and after treatment.

Group	Group A		Group B
	Before treatment	After treatment	Before treatment	After treatment
PI	1.78 ± 0.26	1.31 ± 0.18^#	1.75 ± 0.23	1.73 ± 0.25^#∗
RI	1.23 ± 0.05	0.75 ± 0.03^#	1.26 ± 0.04	0.81 ± 0.05^#∗
S/D	5.38 ± 0.61	3.75 ± 0.58^#	5.45 ± 0.64	5.11 ± 1.09^#∗
PSV	50.03 ± 12.86	42.01 ± 13.86	50.15 ± 13.82	43.52 ± 13.51

Note. # suggests that the difference was statistically obvious compared with the value before treatment in the same group (P < 0.05), and indicates that the difference was statistically great in contrast to the value in group B (P < 0.05).