MATERIAL and METHODS: In this study, retrospective morphometric analysis of ICA measurements from 100 patients (aged 45-60 years) was performed using computed tomographic angiography (CTA) images. The images were divided into four groups: patients with HT (group 1), patients with T2DM (group 2), patients with HT and T2DM (group 3), and a healthy control group (group 4). Length and diameter measurements of the cervical, petrous, cavernous, and terminal segments of the ICA were made using 3D CTA images and recorded. The measurements of the male and female patients were compared using the Mann-Whitney U test and the groups were compared using the Kruskal-Wallis H test.

RESULTS: It was found that there were statistically significant differences between male and female patients in terms of the right and left petrous, cavernous, and terminal segments of the ICA in group 1, right and left cervical left cavernous in group 3, left cervical, right and left petrous, cavernous, and right cavernous in group 4 (p<0.05). According to the Kruskal-Wallis H test analysis results, it was determined that there were no statistically significant differences between the patients in the four groups for all segment measurements (p>0.05).

CONCLUSION: It was determined that ICA was more affected by HT than diabetes. In addition, we think that being knowledgeable of morphometric measurements of ICA will guide radio-anatomic evaluations and increase the level of microanatomic knowledge in surgical treatment. Keywords : Internal carotid artery, Computed tomographic angiography, Type 2 diabetes mellitus, Hypertension