Table 3:

Flows of either individual arteries or regions decreased with age

Artery or Region	P	Youngest Group, mL/min	Oldest Group, mL/min
LCCA	< .01	423 ± 86	349 ± 51
LVA	< .01	125 ± 35	69 ± 39
LICA	< .03	296 ± 45	221 ± 49
BA	< .03	164 ± 25	118 ± 15
LACA	< .01	101 ± 28	67 ± 20
CC^r	< .02	1047 ± 178	905 ± 129
IC^r	< .02	788 ± 102	621 ± 71
AC^r	< .02	559 ± 74	433 ± 52
PC^r	< .03	229 ± 32	188 ± 23

Note:—LCCA indicates left common carotid artery; LVA, left vertebral artery; LICA, left internal carotid artery; BA, basilar artery; LACA, left anterior cerebral region; CC^r, cranial circulation region; IC^r, intracranial circulation region; AC^r, anterior circulation region; PC^r, posterior circulation region.