What is CT angiography used for?
Computed Tomography (CT) Angiography is primarily used to diagnose and evaluate intracranial aneurysms. It is used to assess the size, shape, and location of aneurysms and to determine the best course of treatment. It can also be used to detect other vascular diseases, such as arteriovenous malformations and arterial stenosis, and to monitor the progression of aneurysms over time. CT angiography is sometimes used in combination with digital subtraction angiography (DSA) or 3D rotational angiography for improved accuracy. Additionally, CT angiography is often used to triage patients with acute subarachnoid hemorrhage for treatment.  