How do you diagonise carotid artery disease?

Multiple modalities: Carotid ultrasound is the least invasive of the tests. Mr angiography requires a patient to lie in a confined space. The quality of the images is dependent upon no movement during the study. Ct angiography requires iodine-based contrast dye. Patients with chronic renal disease may have special preparations before their study. The gold standard is most invasive, arterial angiography.

Imaging: There are a variety of non invasive imaging modalities that can be used to identify carotid artery disease. These include ultrasound, MRI and ct techniques. Angiography is often used as a confirmatory test when the above studies suggest narrowing.