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Updated: Dec 22, 2025
Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
Published on: October 31, 2011
Evaluation of olfactory bulbus volume and olfactory sulcus depth by 3 T MR
Neşat Çullu1, İbrahim Önder Yeniçeri2, Bünyamin Güney2
1Department of Radiology, Muğla Sıtkı Koçman University, Faculty of Medicine, Muğla, Turkey. nesatcullu@mu.edu.tr.
Objective:
The aim of this study was to evaluate olfactory bulbus volume (OBV) and olfactory sulcus depth (OSD) according to age and sex with 3 T MRI in a healthy Turkish population.
Materials And Methods:
In the current study, 200 patients who had cranial MRI were retrospectively evaluated. They were divided into the following groups to examine the effects of age: group 1: 18-30 years old; group 2: 31-40 years old; group 3: 41-50 years old; group 4: 51-60 years old; and group 5: >60 years old. OBV and OSD measurements were performed on coronal T2-weighted brain MR images. The mean right and left olfactory bulb volume and sulcus depths were used for evaluation.
Results:
The mean age was 46.5 ± 18.1 (range 18-86) years. The mean OBV value of both sides was 91.17 ± 7.8 mm 3 in all patients. The mean OSD value of both sides was 8.62 ± 0.84 mm in all patients. There was no statistically significant difference in OBV and OSD between sexes (P < 0.236; P < 0.482). Group 5 (>60 years old) was found to have significantly lower OBV and OSD values than the other groups (all P < 0.001).
Conclusion:
The normal values of OBV and OSD should be established according to age to determine decreased OBV and OSD values.
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