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Carotid Stenosis, Extracranial
Bronwyn E. Hamilton, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Synonyms

              • Carotid atherosclerotic vascular disease (ASVD)
            • Definitions

              • Narrowing of cervical segment of internal carotid artery (ICA) or common carotid artery (CCA)

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Ultrasonographic Findings

                    • Angiographic Findings

                      • Other Modality Findings

                        • Imaging Recommendations

                          DIFFERENTIAL DIAGNOSIS

                            PATHOLOGY

                            • General Features

                              • Gross Pathologic & Surgical Features

                                • Microscopic Features

                                  CLINICAL ISSUES

                                  • Presentation

                                    • Natural History & Prognosis

                                      • Treatment

                                        DIAGNOSTIC CHECKLIST

                                        • Consider

                                          • Image Interpretation Pearls

                                            • MIPS Considerations

                                              Selected References

                                              1. MIPS Measure 195: Radiology: Stenosis Measurement in Carotid Imaging Reports (to reference if using CQMS). Centers for Medicare and Medicaid Services (CMS). 2021.
                                              2. MIPS Measure 195: Radiology: Stenosis Measurement in Carotid Imaging Reports (to reference if using Medicare Part B claims). Centers for Medicare and Medicaid Services (CMS). 2021.
                                              3. Magge R et al: Clinical risk factors and CT imaging features of carotid atherosclerotic plaques as predictors of new incident carotid ischemic stroke: a retrospective cohort study. AJNR Am J Neuroradiol. 34(2):402-9, 2013
                                              4. Brott TG et al: 2011 ASA/ACCF/AHA/AANN/AANS/ACR/ASNR/CNS/SAIP/SCAI/SIR/SNIS/SVM/SVS guideline on the management of patients with extracranial carotid and vertebral artery disease: executive summary: Stroke. 42(8):e420-63, 2011. Erratum in: Stroke. 42(8):e541, 2011
                                              5. Halliday A et al: Prevention of disabling and fatal strokes by successful carotid endarterectomy in patients without recent neurological symptoms: randomised controlled trial. Lancet. 363(9420):1491-502, 2004
                                              6. Yadav JS: Carotid stenting in high-risk patients: design and rationale of the SAPPHIRE trial. Cleve Clin J Med. 71 Suppl 1:S45-6, 2004
                                              7. No authors listed: Carotid endarterectomy for patients with asymptomatic internal carotid artery stenosis. National Institute of Neurological Disorders and Stroke. J Neurol Sci. 129(1):76-7, 1995
                                              Related Anatomy
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                                              Related Differential Diagnoses
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                                              References
                                              Tables

                                              Tables

                                              KEY FACTS

                                              • Terminology

                                                • Imaging

                                                  • Top Differential Diagnoses

                                                    • Pathology

                                                      • Clinical Issues

                                                        TERMINOLOGY

                                                        • Synonyms

                                                          • Carotid atherosclerotic vascular disease (ASVD)
                                                        • Definitions

                                                          • Narrowing of cervical segment of internal carotid artery (ICA) or common carotid artery (CCA)

                                                        IMAGING

                                                        • General Features

                                                          • CT Findings

                                                            • MR Findings

                                                              • Ultrasonographic Findings

                                                                • Angiographic Findings

                                                                  • Other Modality Findings

                                                                    • Imaging Recommendations

                                                                      DIFFERENTIAL DIAGNOSIS

                                                                        PATHOLOGY

                                                                        • General Features

                                                                          • Gross Pathologic & Surgical Features

                                                                            • Microscopic Features

                                                                              CLINICAL ISSUES

                                                                              • Presentation

                                                                                • Natural History & Prognosis

                                                                                  • Treatment

                                                                                    DIAGNOSTIC CHECKLIST

                                                                                    • Consider

                                                                                      • Image Interpretation Pearls

                                                                                        • MIPS Considerations

                                                                                          Selected References

                                                                                          1. MIPS Measure 195: Radiology: Stenosis Measurement in Carotid Imaging Reports (to reference if using CQMS). Centers for Medicare and Medicaid Services (CMS). 2021.
                                                                                          2. MIPS Measure 195: Radiology: Stenosis Measurement in Carotid Imaging Reports (to reference if using Medicare Part B claims). Centers for Medicare and Medicaid Services (CMS). 2021.
                                                                                          3. Magge R et al: Clinical risk factors and CT imaging features of carotid atherosclerotic plaques as predictors of new incident carotid ischemic stroke: a retrospective cohort study. AJNR Am J Neuroradiol. 34(2):402-9, 2013
                                                                                          4. Brott TG et al: 2011 ASA/ACCF/AHA/AANN/AANS/ACR/ASNR/CNS/SAIP/SCAI/SIR/SNIS/SVM/SVS guideline on the management of patients with extracranial carotid and vertebral artery disease: executive summary: Stroke. 42(8):e420-63, 2011. Erratum in: Stroke. 42(8):e541, 2011
                                                                                          5. Halliday A et al: Prevention of disabling and fatal strokes by successful carotid endarterectomy in patients without recent neurological symptoms: randomised controlled trial. Lancet. 363(9420):1491-502, 2004
                                                                                          6. Yadav JS: Carotid stenting in high-risk patients: design and rationale of the SAPPHIRE trial. Cleve Clin J Med. 71 Suppl 1:S45-6, 2004
                                                                                          7. No authors listed: Carotid endarterectomy for patients with asymptomatic internal carotid artery stenosis. National Institute of Neurological Disorders and Stroke. J Neurol Sci. 129(1):76-7, 1995