Carotid stenosis, as the name implies, is a narrowing of the lumen of the carotid artery. Carotid artery stenosis can easily cause insufficient blood supply to the brain, which can lead to weakness of limbs, drowsiness, vision and memory loss in the early stage, and cerebral infarction in severe cases. Therefore, if the above related symptoms appear in the early stage, you should go to the hospital for detailed examination as soon as possible. When it comes to examination, many people ask “what kind of examination should be done for carotid stenosis”? Magnetic resonance angiography (MRA), CT angiography (CTA) and cerebral angiography (DSA) are several common clinical imaging examinations, each with unique advantages. How much does a CTA examination cost for carotid artery examination?Although CT angiography (CTA) can assess the degree and location of stenosis of blood vessels, it has a limited scope of application and is not suitable for patients with contrast allergy. As for the cost of CTA, it cannot be generalized. The cost varies widely for each individual with different degrees of disease. Magnetic resonance angiography (MRA) can show the location and degree of stenosis of carotid artery stenosis, but it is not suitable for patients with metal implants in the body. In summary, patients with carotid stenosis can undergo CTA to assess the degree of stenosis. For patients whose condition cannot be clarified by CTA, they can undergo further DSA to clarify the size of the plaque, the degree of stenosis, and the presence of occlusion. Carotid artery stenosis undoubtedly poses a great risk to the patient’s health. The clinical classification of carotid artery stenosis is divided into 4 levels, namely mild stenosis, moderate stenosis, severe stenosis and complete occlusion. On the one hand, mild stenosis can be controlled by medications, and on the other hand, patients can go to the hospital regularly for review and observation of plaque changes. Moderate to severe stenosis requires carotid endarterectomy to solve the root of the problem, and complete occlusion requires intracranial and extracranial vascular bypass surgery for treatment.