정상 한국인에서 내항문괄약근의 경항문 초음파 소견
Anal Endosonographic Findings of Internal Anal Sphincter in Normal Adult Korean
김경종, 김정용, 장정환, 김권천, 민영돈,
소속 상세정보
김경종 ( Kim Kyung-Jong )
조선대학교 의과대학 외과학교실
김정용 ( Kim Jung-Young )
조선대학교 의과대학 외과학교실
장정환 ( Jang Jeong-Hwan )
조선대학교 의과대학 외과학교실
김권천 ( Kim Kweon-Cheon )
조선대학교 의과대학 외과학교실
민영돈 ( Min Young-Don )
조선대학교 의과대학 외과학교실
KMID : 0356719980140020219
Abstract
Purpose: To describe the appearance and average thickness of the internal anal sphincter with anal endosonography in healthy Korean adults.
Material and Methods: 184 subjects(male: 96, female: 88) with no history of anorectal disease or surgery were studied with anal endosonography. The average thickness of internal sphincter was meas ured at the mid-anal canal. For the internal sphincter, which is often asymmetric, the thickness of each 4 part(12, 3, 6 and 9 o’clock direction) were measured in left lateral decubitus position.
Results: The anal wall was well visualized in 5 layers(mucosa, submucosa, internal anal sphincter, intersphincteric plane, external anal sphincter) with anal endosonography. The anal endosonogram showed the internal anal sphincter as a homogenous, well-defined, hypoechoic, circular band, and slightly asymmetric. The average thickness of the internal anal sphincter in the area of mid-anal portion was 2.0 0.3 mm(range: 1∼3 mm). There was no sexual difference; however, a significant positive correlation with age was found in average thickness of the internal anal sphincter. The correlation with lean body mass was not found.
Conclusion: The internal anal sphincter is well-visualized, best defined structure by anal endosonography. Average thickeness of the sphincter in Korean appeared to be the same as in the Western.
키워드
Internal anal sphincter;Anal endosonography
원문 및 링크아웃 정보
등재저널 정보