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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
Published on: October 31, 2011
Radiological observations on the olfactory fossa and ethmoid roof
1Department of Otolaryngology, Alexandria Medical School, Alexandria, Egypt. samyelwany@msn.com
The Journal of Laryngology and Otology
|June 10, 2010
Summary
Computed tomography (CT) scans reveal significant sex-based differences in olfactory fossa depth and cribriform plate dimensions. These anatomical variations necessitate careful pre-operative evaluation for surgical safety.
Area of Science:
- Anatomy
- Radiology
- Otolaryngology
Background:
- The olfactory fossa and cribriform plate are critical anatomical structures in skull base surgery.
- Understanding normative dimensions is essential for surgical planning and avoiding complications.
Purpose of the Study:
- To define normative dimensions of the olfactory fossa, lateral lamella of the cribriform plate, and ethmoid roof.
- To identify sex-based and side-to-side variations in these structures.
Main Methods:
- Analysis of 300 high-resolution, multislice computed tomography (CT) scans of the paranasal sinuses.
- Evaluation of olfactory fossa depth, lateral lamella length and angulation, and ethmoid roof height.
Main Results:
- Type II olfactory fossa was more common in men (66.7%), while Type I was more common in women (53%).
- Significant sex differences observed in lateral lamella length and obliquity, and ethmoid roof height.
- Asymmetrical olfactory fossa depths occurred in 11% of men and 2% of women.
Conclusions:
- Sex and side-to-side differences in these anatomical parameters are clinically significant.
- Pre-operative CT evaluation is crucial for surgeons to anticipate and mitigate risks.
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