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Updated: May 14, 2026

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Published on: September 8, 2023
Optic canal location by computed tomography
Shuaichen Liu1, Yu Chen, Junxue Song
1Department of Anatomy, Norman Bethune Medical School, Jilin University, the First Affiliated Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China. liusc89@gmail.com
This study provides crucial anatomical measurements of the optic canal using computed tomography, aiding surgeons in optic canal decompression procedures. These precise data enhance surgical accuracy and patient outcomes.
Area of Science:
- Anatomy
- Radiology
- Ophthalmology
Background:
- Optic canal decompression is a critical surgical procedure.
- Accurate anatomical data is essential for successful optic canal decompression.
- Previous studies may lack comprehensive measurements for surgical planning.
Purpose of the Study:
- To provide detailed anatomical measurements of the optic canal.
- To establish reference data for optic canal decompression surgery.
- To enhance the precision of surgical interventions involving the optic canal.
Main Methods:
- Computed tomography (CT) scans of 120 anonymized individuals (55 males, 65 females) were analyzed.
- Twelve specific anatomical parameters of the optic canal were measured.
- Standardized lines and points (P1-P5, L1-L3) were defined for precise measurements.
Main Results:
- Significant differences were noted in medial canal wall length between the right and left sides (P = 0.001).
- Distances from key anatomical landmarks (P1, P3, P4, P5) to reference lines (L1, L2, L3) were quantified.
- Angular measurements, including the angle between P1P4 and L3 (12.26 ± 1.63 degrees), were recorded.
Conclusions:
- The study successfully generated precise anatomical data for the optic canal.
- These findings offer valuable reference points for surgeons performing optic canal decompression.
- The detailed measurements contribute to improved surgical planning and execution in ophthalmology and neurosurgery.
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