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Computed tomography-assessed variations of the carotid sinus

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Abstract

Purpose and background

Previous studies have identified variations regarding the morphology and location of the carotid sinus, a phenomenon still not commonly approached or studied on computed tomography angiography (CTA). Detailed characterization of the carotid sinus was performed on CTAs, determining its position, diameter and length.

Methods

The study group included 43 patients with disease-free carotid trunks subjected to cervical CTA. We measured the terminal caliber of the common carotid artery (CCA), as well as the calibers of the internal (ICA) and external carotid arteries (ECA) at their origin. The diameters were correlated with the location and the shape of the carotid sinus. We also measured the length of the sinus dilatation (carotid bulb), in regard to its location on the terminal branches of the common carotid artery.

Results

Mean diameters of the studied arteries were 7.39 ± 1.04 mm for the CCA, 6.71 ± 1.49 mm for the ICA and, respectively, 4.27 ± 0.75 mm for the ECA. The classical position of the carotid sinus was seen in 80% of cases, the rest being considered anatomical variants. The length of the carotid bulb on the ICA was 9.99 ± 2.22 mm, showing variability between genders.

Conclusions

The carotid sinus does not always extend to the ICA, presenting different distribution patterns that might be relevant in sinus pathology from a clinical point of view, respectively from a surgical point of view during invasive or minimally invasive interventions on the carotid axis.

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Availability of data and materials

The data presented in this study are available on reasonable request from the corresponding author.

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Authors and Affiliations

Authors

Contributions

Conceptualization: R-AB, PB; methodology: R-AB, PB; formal analysis and investigation: R-AB, CS, PB; writing—original draft preparation: R-AB, CS, ACR, PB; writing—review and editing: R-AB, CS; resources: R-AB, ACR; supervision: PB. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Cristian Scheau.

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Conflict of interest

None declared.

Ethical approval

Approved by the Ethics Committee of "Sf. Apostol Andrei" County Hospital (no. 34490/8th August 2019).

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Signed informed consent was obtained from all subjects involved in the study.

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Signed informed consent was obtained from all subjects involved in the study.

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Baz, RA., Scheau, C., Rusali, A.C. et al. Computed tomography-assessed variations of the carotid sinus. Surg Radiol Anat 44, 293–298 (2022). https://doi.org/10.1007/s00276-021-02871-x

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  • DOI: https://doi.org/10.1007/s00276-021-02871-x

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