Skip to main content
Fig. 1 | BMC Neurology

Fig. 1

From: Correlation of internal carotid artery diameter and carotid flow with asymmetry of the circle of Willis

Fig. 1

Examples of vascular diameter measurement. a) Typical location of bilateral A1 diameter measurement at in the middle of the A1 segment. b) Typical location of PcomA and P2 diameter measurement at in the middle of the PcomA and proximal P2 segment, respectively. Note there was no PcomA on the contralateral side. c) Typical location of bilateral distal cervical ICA diameter measurement at 1 cm below the petrous ICA segment

Back to article page

BMC Neurology

ISSN: 1471-2377

Contact us