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Carotid stenting - confirmation of stenosis by angiography

Date: May 28, 2021

Question:

Per the NCD for carotid stenting it states: "The degree of carotid artery stenosis shall be measured by duplex Doppler ultrasound or carotid artery angiography and recorded in the patient's medical records. If the stenosis is measured by ultrasound prior to the procedure, then the degree of stenosis must be confirmed by angiography at the start of the procedure. If the stenosis is determined to be < 70% by angiography, then CAS should not proceed." Does confirmation by angiography include CTA or just catheter placed angiogram?

Question ID : 15569
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