Landmarks for endoscopic approach to the parapharyngeal internal carotid artery: a radiographic and cadaveric study.

Published

Journal Article

OBJECTIVES/HYPOTHESIS: To define transnasal endoscopic surgical landmarks for the parapharyngeal segment of the internal carotid artery (ppICA) using radiographic analysis and cadaveric dissection. STUDY DESIGN: Cadaveric and radiographic study. METHODS: One hundred seventy-nine computed tomography angiography studies of the head and neck were analyzed using Osirix third-party software (Pixmeo, Geneva, Switzerland). Dissection of a cadaveric specimen was used as a correlate to radiographic findings. The posterior aspect of the lateral pterygoid process and posterior border of the mandibular ramus were used as bony landmarks for the ppICA. RESULTS: At the level of the nasal floor, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandibular ramus was 2.36 cm and 1.94 cm, respectively, in males, and 2.37 cm and 1.99 cm, respectively, in females. At the level of the skull base, the distance from the ppICA to the posterolateral pterygoid process and to the posterior mandible was 2.33 cm and 1.49 cm, respectively, in males, and 2.20 cm and 1.57 cm, respectively, in females. Cadaver dissection demonstrated the utility of identifying these landmarks. CONCLUSIONS: The posterior border of the mandibular ramus and the posterolateral aspect of the pterygoid process may serve as consistent bony landmarks for identification of the ppICA.

Full Text

Duke Authors

Cited Authors

  • Ho, B; Jang, DW; Van Rompaey, J; Figueroa, R; Brown, JJ; Carrau, RL; Solares, CA

Published Date

  • September 2014

Published In

Volume / Issue

  • 124 / 9

Start / End Page

  • 1995 - 2001

PubMed ID

  • 24449498

Pubmed Central ID

  • 24449498

Electronic International Standard Serial Number (EISSN)

  • 1531-4995

Digital Object Identifier (DOI)

  • 10.1002/lary.24601

Language

  • eng

Conference Location

  • United States