Olfactory Bulb Volume Changes in Patients With Nasal Septal Deviation

Objectives: The olfactory bulb (OB) plays a pivotal role in the processing of olfactory information. The aim of this study was to investigate the OB volume changes and its possible associations with nasal septal deviation. Study Design: Cross-sectional study. Setting: Otolaryngology Department of Bozok University School of Medicine and Neurology Department of Yozgat State Hospital. Subjects and Methods: Ninety patient's cranial magnetic resonance imaging (MRI) studies (46 males and 44 females, mean age 36 ± 13.4 years; range 18–56 years) with isolated nasal septal deviations were recruited for the study. Olfactory bulb volumes in all study subjects were evaluated in T2-weighted coronal MRI images by planimetric manual contouring. Results: Nasal septal deviation angles were found to range between 5° and 23.21° (mean 13.6° ± 3.58°). The right-sided deviations included 17 mild (

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