Bouthillier classification of internal carotid artery segments

Alain Bouthillier et al. described a seven segment internal carotid artery (ICA) classification system in 1996 1. It remains the most widely used system for describing ICA segments.

A helpful mnemonic for remembering ICA segments is: 

  • C'mon Please Learn Carotid Clinical Organizing Classification


See also

There are a few other classifications systems including those proposed by Fischer (1938), Gibo (1981), and Lasjaunias (1984) 2.

Anatomy: Brain

Anatomy: Brain

Anatomy: Head and neck

Anatomy: Head and neck

Article information

rID: 4714
Synonyms or Alternate Spellings:
  • Bouthillier classification of ICA segments

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Cases and figures

  • Figure 1: DSA
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  • Figure 2: CTA reformats
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