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. 2022 Feb 1;9(1):e001917. doi: 10.1136/openhrt-2021-001917

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© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Flowchart of the study. The flow of the study participants is shown. Reference examination by carotid Doppler ultrasound was performed in all, while additionally CT angiography was performed only on clinical indication as decided by the treating physician (n=19, 24%). No patient was excluded from the analyses.