Journal of Korean Academy of Oral and Maxillofacial Radiology (치과방사선)

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
권호 표지

Studies on Quantitative Analysis of Salivary Gland using Computed Tomography

전산화단층사진을 이용한 타액선의 정량분석에 관한 연구

  • Lee Sang-Chul (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University) ;
  • Lee Sam-Sun (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University) ;
  • Heo Min-Suk (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University) ;
  • Choi Soon-Chul (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University) ;
  • Park Tae-Won (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University) ;
  • You Dong-Soo (Department of Oral and Maxillofacial Radiology & Dental Research Institute, College of Dentistry, Seoul National University)
  • 이상철 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소) ;
  • 이삼선 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소) ;
  • 허민석 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소) ;
  • 최순철 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소) ;
  • 박태원 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소) ;
  • 유동수 (서울대학교 치과대학 구강악안면방사선학교실 및 치학연구소)
  • Published : 1999.02.01
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Abstract

Purpose: The purpose of this study was to calculate the size and CT number of both normal parotid and submandibular gland. and evaluate their 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(±1.25)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 was 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.

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