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Smaller caliber of the internal carotid artery in patients with ipsilateral aplasia of the A1 segment of the anterior cerebral artery: a study with CTA

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Abstract

To measure the diameter and the transsectional area of the internal carotid arteries (ICA) on CT Angiography (CTA) in patients with aplasia of the A1-segment of the ACA (A1) and in patients with symmetrical A1, the mean diameter and area of the ICA on both sides were measured at a level of 2 cm below the skull base with a commercially available CT software in 41 consecutive patients with aplasia of A1 observed during a 12-month period on CTA and in 41 control patients with symmetrical A1. The mean diameter of the ipsilateral ICA was 3.83 ± 0.60 mm versus 4.86 ± 0.60 mm as mean diameter of the contralateral ICA and versus 4.40 ± 0.60 mm as mean diameter of both ICAs in the control group of patients. The mean area of the ipsilateral ICA was 11.58 ± 3.80 mm2 versus 18. 82 ± 7.39 mm2 as mean area of the contralateral ICA and versus 15.29 ± 4.42 mm2 as mean area of both ICA in the control group of patients. These differences are statistically highly significant. In patients with symmetrical A1, there was no statistical difference between the diameter or area of both internal carotid arteries. In conclusion, in patients with aplasia of A1, the ipsilateral diameter and area of the cervical ICA is smaller than the diameter and area of the contralateral ICA and smaller than the diameter and area of both internal carotid arteries in patients with symmetrical A1.

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Funding

This study was not funded.

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Authors and Affiliations

  1. Department of Radiology, UZLeuven, Campus Gasthuisberg, Herestraat 49, 3000, Leuven, Belgium

    Kenneth Carels, Sandra A. Cornelissen, Walter Coudyzer, Philippe Demaerel & Guido Wilms

  2. ESAT/PSI, Department of Electrical Engineering, KU Leuven, Leuven, Belgium

    David Robben

Authors
  1. Kenneth Carels
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  2. Sandra A. Cornelissen
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  3. David Robben
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  4. Walter Coudyzer
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  5. Philippe Demaerel
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  6. Guido Wilms
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Correspondence to Guido Wilms.

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The authors declare that they have no conflict of interest.

Human and animal participant statement

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with human participants or animals performed by any of the authors

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Carels, K., Cornelissen, S.A., Robben, D. et al. Smaller caliber of the internal carotid artery in patients with ipsilateral aplasia of the A1 segment of the anterior cerebral artery: a study with CTA. Acta Neurol Belg 118, 297–302 (2018). https://doi.org/10.1007/s13760-018-0935-7

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  • DOI: https://doi.org/10.1007/s13760-018-0935-7

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