Studies On Quantitative Analysis Of Salivary Gland Using Computed Tomography.
- Author:
Sang Chul LEE
1
;
Sam Sun LEE
;
Min Suk HEO
;
Soon Chul CHOI
;
Tae Won PARK
;
Dong Soo YOU
Author Information
1. Department of Oral and Maxillofacial Radiology, College of Dentistry, Seoul National University , Korea.
- Publication Type:Original Article
- Keywords:
tomography;
X-ray computed;
salivary gland;
aging;
body mass index
- MeSH:
Aging;
Body Mass Index;
Humans;
Male;
Obesity;
Parotid Gland;
Salivary Glands*;
Submandibular Gland
- From:Journal of Korean Academy of Oral and Maxillofacial Radiology
1999;29(1):209-221
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was to calculate the size and CT number of both normal parotid and submandibular gland, and evaluate its relation to sex, age and obesity using computed tomography. MATERIALS AND METHODS: The computed tomography was performed parallel to the Frankfurt plane in 46 subjects with healthy salivary gland. The subjects were divided into the three groups(young, middle, old) according to their ages. The size of salivary gland was determined as maximum cross-sectional area and the CT number of salivary gland was determined as the mean CT number of three ROI's. The body mass index was calculated from weight and height. RESULTS: The mean maximum cross-sectional area was 7.79(+/-1.26) cm2 on parotid gland and 4.12(+/-0.83) cm2 on submandibular gland. The mean CT number was -4.43(+/-23.87) HU on parotid gland and 50.01(+/-15.63) HU on submandibular gland. There were decreasing pattern of the maximum cross-sectional area of submandibular gland and the CT number of both parotid and submandibular gland according to age(p<0.05). As the body mass index increased, the maximum cross-sectional area of parotid gland increased and CT number of both parotid and submandibular gland decreased(p<0.05). The maximum cross-sectional area of submandibular gland in male was larger than that in female(p<0.05). As the maximum cross-sectional area and CT number of left salivary gland increased, those of right gland increased(p<0.05). CONCLUSION: Intra-individual differences in salivary gland size and CT number is considered in the age and individual obesity.
