Purpose: Aim of the study was to find answers to the following questions: What haemodynamic changes may occur
in patients with stenotic, aneurysmal, dissection of the carotid artery and its branches? How do these changes differ
in patients with normal and carotid disease?
Material and methods: In order to achieve this aim, the cranio-cervical CT angiography images of patients who were
referred to our clinic for any reason and received the diagnosis of carotid stenosis, carotid dissection, and extra or
intracranial aneurysm were reviewed retrospectively.
Results: Significant differences were detected in the carotid arteries of normal patients and those with aneurysm and
dissection. When normal and aneurismal patients were compared, right and left ICA diameters (p = 0.000, p = 0.002,
respectively), total ICA diameters (p = 0.000), carotid left Ø diameters (p = 0.026), right and left total Ø diameters
(p = 0.024), and Murray’s and our cosine values of Ø angles (p = 0.001 and p = 0.022, respectively) were found to be
different. Also, in a comparison made between normal patients and patients with dissection, right CCA (p = 0.000),
ICA (p = 0.001), ECA (p = 0.004) diameters, total CCA (p = 0.001), ICA (p = 0.009), and ECA (p = 0.003) diameters
were also found to be different.
Conclusions: This study showed that the presence of aneurysm plays an important role in the remodelling of the carotid
arteries. Also, it is understood that Murray’s laws are still valid for the detection of structural deterioration in
carotid artery diseases. Hence, it is believed that these data can be used in artificial intelligence studies.
Key words: computed tomography angiography, carotid artery stenosis, carotid dissection, carotid artery aneurysm,
carotid artery diseases, Murray’s law.