Table 7.

Utah retrospective tortuosity comparison

Artery	Negative (N)	Hypertensive (N)	1-sided Wilcoxon	2-sided F Test
Left ACA	43	21	0.0565	+0.232
Right ACA	39	21	0.279	-0.0824
Basilar	42	18	0.0641	+0.0302
L to R ACA	24	11	0.805	+0.501
Left ICA	35	19	0.132	+0.371
Right ICA	36	19	0.366	+0.00206
Left VA	36	18	0.283	+0.00093
Right VA	35	16	0.297	+0.00174

A (+) indicates increased hypertensive tortuosity and a (-) indicates decreased hypertensive tortuosity