Research on Association of the Diameter of the Internal Carotid Artery Siphon and Nonarteritic Anterior Ischaemic Optic Neuropathy

Table 4

IMT and hemodynamic parameters of the ICA.

	IMT (mm)	Vm (cm/s)	RI
Observation group	0.73 ± 0.05	26.81 ± 1.78	0.72 ± 0.06
Control group	0.73 ± 0.04	28.19 ± 2.75	0.70 ± 0.05
t value	1.103	3.385	2.988
value	0.279	0.002	0.006

ICA: internal carotid artery; IMT: intima-media thickness; Vm: average blood flow velocity; RI: resistance index. values were calculated using the paired t-test.