[Spiral computed tomography imaging of internal carotid artery diameter: a report of 260 cases].

Objective: To explore the diameter of internal carotid artery by arterial phase imaging of multi-slice spiral computed tomography (CT).

Methods: A total of 260 routine brain CT scans of the examiner were performed. And the arterial phase images of carotid artery were acquired, observed and measured through a three-dimensional reconstruction workstation.