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Bouthillier classification of ICA segments

Dr Frank Gaillard et al.

Bouthillier et al in Neurosurgery 1996 described a 7 segment ICA classification system.

There are 7 segments in the Bouthillier classification:

  1. cervical segment
  2. petrous segment
  3. lacerum segment
  4. cavernous segment
  5. clinoid segment
  6. ophthalmic (supraclinoid) segment
  7. communicating (terminal) segment

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