Normal anatomy of aditus of antrum and antrum on high-resolution CT and three-dimensional reconstruction.
- Author:
Xiaobin LONG
1
;
Xiaohua FENG
;
Jian ZHU
;
Menghe GUO
;
Minqiang XIE
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
- Publication Type:Journal Article
- MeSH:
Adolescent;
Child;
Child, Preschool;
Ear, Middle;
anatomy & histology;
diagnostic imaging;
Female;
Humans;
Image Processing, Computer-Assisted;
Infant;
Male;
Tomography, X-Ray Computed
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2012;26(16):747-750
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To study the normal anatomy of aditus of antrum and antrum on the high-resolution CT (HRCT) and the three-dimensional reconstruction, testing the normal range. And comparison was carried out according to the age, sex and side.
METHOD:Ninety cases were randomly selected without ear lesions. Scanning were taken in sagittal, transverse and coronal planes on HRCT respectively. The structure of aditus and antrum was displayed by three-dimensional reconstruction. The left-right distances and up-down distances, antero-posterior distances were measured and analyzed.
RESULT:The image of antrum varied with age, while aditus remained constant on the HRCT and the three-dimensional reconstruction. The average of left-right distance of aditus was (5.19 +/- 1.39) mm, and the average of up-down distance of aditus was (5.74 +/- 1.16) mm. The average of left-right distance of antrum was (8.27 +/- 1.41) mm (<6 years old) and (5.41 +/- 1.32) mm (> or = 6 years old). The average of up-down distance of antrum was (11.78 +/- 1.65) mm (<6 years old) and (9.91 +/- 2.04) mm (> or = 6 years old). The average of antero-posterior distance of antrum was (12.25 +/- 1.23) mm (<6 years old) and (10.05 +/- 1.69) mm (> or = 6 years old). No statistically significant differences were seen in left-right distance of aditus by age, sex and side (P > 0.05). Significant differences in up-down distance of aditus was found between male and female, and the distance in male was greater than that in female (P < 0.05). Statistically significant differences were seen in left-right distance and up-down distance, antero-posterior distance of antrum by age (P < 0.05), but no statistically significant differences by sex or side (P > 0.05).
CONCLUSION:Imaging of aditus ad antrum is relatively constant in the normal persons, while the aditus is more diverse. Significant gender differences were seen in up-down distance. There were significant differences in left-right distance, up-down distance, and antero-posterior distance of aditus among all age groups.
