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Magnetic resonance imaging study of olfactory bulb volume in normal children
CHEN Lei  ZHANG Xinxian  XIA Dandan  LI Dechun 

Cite this article as: Chen L, Zhang XX, Xia DD, et al. Magnetic resonance imaging study of olfactory bulb volume in normal children[J]. Chin J Magn Reson Imaging, 2022, 13(1): 110-113. DOI:10.12015/issn.1674-8034.2022.01.022.


[Abstract] Objective To investigate the magnetic resonance scanning sequence and volume measurement method of olfactory bulb in normal children, and to establish the volume range of olfactory bulb in normal children.Materials and Methods: One hundred and twenty children who underwent physical examination in Xuzhou Central Hospital and Xuzhou Children's Hospital were retrospectively divided into 4 groups according to their age, including 60 boys and 60 girls, olfactory bulb images were obtained by GE Discovery MR750 3.0 T coronal T2-weighted fast spin echo (FSE) sequence scan, and bilateral olfactory bulb volumes were calculated by manually delineating the boundary and adding layer by layer.Results The olfactory bulb volumes of normal boys were (21.97±0.50) mm3 on the left, (22.51±0.49) mm3 on the right, and (44.78±0.95) mm3 in total, respectively. The olfactory bulb volumes of normal girls were (23.08±0.82) mm3 on the left, (22.33±0.76) mm3 on the right, and (45.41±1.55) mm3 in total, respectively. There was no significant difference in the left and right olfactory bulbs volume between boys and girls (P＞0.05). There were significant differences in left and right olfactory bulb volume and total olfactory bulb volume in different age groups (P＜0.05).Conclusions The coronal T2-weighted FSE sequence of 3.0 T magnetic resonance can clearly display the contour of olfactory bulb and can be used to measure the volume of olfactory bulb. There was no difference in the volume of left and right olfactory bulbs between boys and girls. The olfactory bulb volumes in both boys and girls tended to decrease with the increase of age. The measurement of olfactory bulb volume range in normal children may be used as one of the references to evaluate olfactory bulb lesions in children.
[Keywords] olfactory bulb；children；volume；measurement；magnetic resonance imaging

CHEN Lei1   ZHANG Xinxian2   XIA Dandan3   LI Dechun1, 3*  

1 Graduate School of Bengbu Medical College, Bengbu 233030, China

2 Department of Radiology, Xuzhou Children's Hospital, Xuzhou 221008, China

3 Department of Radiology, Xuzhou Central Hospital, Xuzhou 221009, China

Li DC, E-mail: 18952171358@189.cn

Conflicts of interest   None.

Received  2021-06-02
Accepted  2021-12-17
DOI: 10.12015/issn.1674-8034.2022.01.022
Cite this article as: Chen L, Zhang XX, Xia DD, et al. Magnetic resonance imaging study of olfactory bulb volume in normal children[J]. Chin J Magn Reson Imaging, 2022, 13(1): 110-113. DOI:10.12015/issn.1674-8034.2022.01.022.

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