Carotid Velocities Determine Cerebral Blood Flow Deficits in Elderly Men with Carotid Stenosis <50%

Table 2

Correlation coefficients between peak systolic velocity in right/left ICA and cerebral blood flow estimated in several regions of interest. Analyses performed in study subjects defined as normotensive and hypertensive at age 68.

	Normotensive at age 68	Hypertensive at age 68	Normotensive at age 68	Hypertensive at age 68
	ICA left	ICA right	ICA left	ICA right
	𝑁=55	𝑁=57	𝑁=55	𝑁=59
Frontal
R	−.244	−.333^*	−.014	.106
L	−.273^*	−.282^*	.064	.079
Mesial temporal
R	−.345^**	−.286^*	.069	.140
L	−.369^**	−.376^**	.030	.165
Lateral temporal
R	−.237	−.186	−.013	.218
L	−.214	−.252	.040	.171
Superior parietal
R	−.355^**	−.279^*	.001	.088
L	−.312^*	−.217	.140	.181
Inferior parietal
R	−.294^*	−.355^**	.026	.083
L	−.282^*	−.270^*	.146	.123
Basal ganglia
R	−.138	−.261^*	.007	.043
L	−.191	−.234	.065	.036
Subcortical area	−.309^*	−.337^*	.045	.066

^*Correlation is significant at  .05 level (2-tailed). ^**Correlation is significant at  .01 level (2-tailed). ICA: internal carotid artery.