Internal Carotid Artery Classification Systems: An Illustrative Review

Area of Science:

• Neurosurgery
• Vascular Anatomy
• Medical Education

Background:

• The internal carotid artery's (ICA) complex course necessitates clear classification systems for surgical guidance.
• Existing ICA classification systems often present heterogeneous and confusing nomenclature.
• Standardized anatomical descriptions are crucial for neurosurgical performance and interdisciplinary communication.

Purpose of the Study:

• To review and illustrate 8 prominent internal carotid artery (ICA) classification systems.
• To provide a rapid neuroanatomic consultation tool using lateral and anterior views.
• To enhance understanding and communication regarding ICA anatomy for healthcare professionals.

Main Methods:

• Systematic review and illustrative analysis of 8 notable ICA classification systems.
• Utilized lateral and anterior anatomical views for visualization.
• Focused on the practical application and limitations of each classification.

Main Results:

• Identified 8 distinct ICA classification systems with varying utility.
• Demonstrated the anatomical variations and trajectories relevant to neurosurgery.
• Highlighted the strengths and weaknesses of each system for clinical application.

Conclusions:

• A comprehensive understanding of ICA anatomy through diverse classification perspectives is vital.
• Standardized anatomical visualization aids in optimizing intraoperative performance.
• Improved clarity in ICA nomenclature facilitates scholarly and clinical communication.