Carotid artery stenosis CT

Carotid artery stenosis Microchapters
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Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Carotid artery stenosis from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Testing Guidelines
History and Symptoms
Physical Examination
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Electrocardiogram
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MRA
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Cost-Effectiveness of Therapy
Future or Investigational Therapies
ACC/AHA Guideline Recommendations
Diagnostic Testing Guidelines Recommendation
Primary Prevention and Screening Guidelines Recommendations
Secondary Prevention Guidelines Recommendations
Selection of Patients for Carotid Revascularization
Periprocedural Management of Patients Undergoing Carotid Endarterectomy
Management of Patients Undergoing Carotid Artery Stenting
Restenosis After Carotid Endarterectomy or Stenting
Vascular Imaging in Patients With Vertebral Artery Disease
Atherosclerotic Risk Factors in Patients With Vertebral Artery Disease
Occlusive Disease of the Subclavian and Brachiocephalic Arteries
Fibromuscular Dysplasia
Cervical Artery Dissection
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Case #1
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

CT

If there is doubt whether the narrowing is still patent (open to blood flow) and the patient is to be assessed for treatment, the next imaging option would either be computed tomography angiogram (CTA) or a magnetic resonance imaging angiogram (MRA). CTA is usually used as it's more widely available and faster (takes only several minutes). However, it does involve significant X-ray radiation and the use of contrast agents which is usually iodinated, which can cause allergic reactions, even anaphylaxis and can also cause renal failure.