Novel Method for Automated Analysis of Retinal Images: Results in Subjects with Hypertensive Retinopathy and CADASIL

Table 2

Arteriole-to-venule ratio (AVR), mean fractal dimension (mean-D), and tortuosity index (TI) values of the study groups.

	AVR	Mean-D	TI^1	TI^2
Hypertensive retinopathy	0.68 ± 0.09	1.41 ± 0.04	72 ± 26	1.52 ± 1.36
Controls	0.77 ± 0.07	1.45 ± 0.04	64 ± 24	1.44 ± 0.74
()	0.01	0.04	0.03	0.84
CADASIL	0.67 ± 0.10	1.40 ± 0.04	67 ± 23	1.29 ± 1.06
Controls	0.78 ± 0.07	1.45 ± 0.04	61 ± 22	1.32 ± 0.94
()	0.03	0.002	0.08	0.70

Values are expressed as mean ± SD.
Wilcoxon signed rank test.
TI¹: tortuosity index measured by using the method implemented in Cioran.
TI²: tortuosity index measured using the method by Cheung et al. [18].