Table 2.

Morphological measurements of the cerebral arteries.

	Normal anatomy group mean (std)		Fetal PCA variation group mean (std)
	Left	Right	Left	Right
Artery density in flow territories (%)
ACA	0.756 (0.006)	1.177 (0.008)	0.765 (0.017)	1.230 (0.021)
MCA	0.707 (0.004)	0.852 (0.005)	0.686 (0.004)	0.859 (0.012)
PCA	0.274 (0.003)	0.308 (0.003)	0.278 (0.007)	0.311 (0.008)
Mean artery radius in flow territories (mm)
ACA	0.761 (0.003)	0.715 (0.002)	0.769 (0.007)	0.728 (0.005)
MCA	0.688 (0.001)	0.751 (0.002)	0.689 (0.003)	0.761 (0.004)
PCA	0.618 (0.002)	0.634 (0.002)	0.621 (0.004)	0.639 (0.004)
Mean artery radius (mm)
ACA A1	1.025 (0.004)	0.992 (0.004)	0.997 (0.011)	0.991 (0.011)
ACA A2	0.890 (0.002)		0.879 (0.006)
ICA	1.849 (0.007)	1.848 (0.007)	1.900 (0.018)	1.936 (0.019)*
MCA M1	1.193 (0.003)	1.168 (0.003)	1.196 (0.009)	1.174 (0.009)
MCA M2	0.811 (0.003)	0.787 (0.002)	0.808 (0.007)	0.787 (0.006)
PCA	0.906 (0.002)	0.898 (0.002)	0.886 (0.007)	0.891 (0.006)
BA	1.049 (0.004)		0.962 (0.010)*

Morphological measurements of the cerebral arteries for the subjects with (12.5%) and without (87.5%) fetal PCA, adjusted for age and sex.

ACA: anterior cerebral artery, MCA: middle cerebral artery, PCA: posterior cerebral artery, ICA: Internal carotid artery, BA: Basilar artery.

*Significant difference between the two groups, after Bonferroni correction, p-value < 0.002.