Indicate the main indications for carotid ultrasound.

To assess patients with symptoms that may originate from carotid diseases, such as transient ischemic attacks and amaurosis fugax.
To identify patients with significant changes who will benefit from surgery.
To follow up on patients who have undergone carotid endarterectomy.
To diagnose atypical symptoms that may or may not be related to carotid disease.
To assess patients with a risk of stroke perioperatively.
To diagnose carotid dissection.
To study the progression or regression rate of the disease.