초음파를 통한 미니돼지의 위 운동성 평가

Evaluation of Gastric Motility with Ultrasonography in Conscious Minipigs

  • 오선경 (서울대학교 수의과대학 수의영상학과) ;
  • 장진화 (서울대학교 수의과대학 수의영상학과) ;
  • 정주현 (서울대학교 수의과대학 수의영상학과) ;
  • 최민철 (서울대학교 수의과대학 수의영상학과)
  • Oh, Sun-Kyoung (Department of Veterinary Radiology, College of Veterinary Medicine, Seoul National University) ;
  • Chang, Jin-Hwa (Department of Veterinary Radiology, College of Veterinary Medicine, Seoul National University) ;
  • Jung, Joo-Hyun (Department of Veterinary Radiology, College of Veterinary Medicine, Seoul National University) ;
  • Choi, Min-Cheol (Department of Veterinary Radiology, College of Veterinary Medicine, Seoul National University)
  • 발행 : 2009.12.31

초록

이 연구의 목적은 초음파를 통해 미니돼지의 위 운동성을 평가하는 것이며, 초음파를 통해 측정된 위 유문동의 수축 횟수 및 위 배출시간을 이용하였다. 실험동물은 나이 5개월령, 체중 13.5~15 kg의 건강한 미니돼지 5두를 사용하였으며, 원활한 위 초음파검사를 위해 48시간 절식시켰다. 먼저 공복상태에서 3분간 유문동의 수축 횟수를 측정하였고 유문부의 단면 넓이를 측정하여 이를 기초 값으로 사용하였다. 10 ml/kg의 생리식염수를 먹인 후, 15분 간격으로 3분간 유문동의 수축 횟수를 측정하였고, 각 시간대의 유문부 단면 넓이를 측정하였다. 위 배출시간은 유문부의 단면적이 기초 값으로 돌아올 때까지의 시간으로 하였다. 공복 시 유문동의 평균 수축횟수(평균${\pm}$표준편차)는 3분간 1.60${\pm}$2.30 회였고, 생리식염수 급여 후 평균 수축횟수는 3분간 5.40${\pm}$3.62 회로 측정되었다. 위 배출시간(평균${\pm}$표준 편차)은 평균 58.06${\pm}$5.23 초를 나타내었다. 이번 실험에서 얻어진 데이터들은 미니돼지의 위 운동성 평가의 기초 데이터베이스로 사용될 수 있으며, 정상 및 여러 질환모델로서의 미니돼지에서 활용될 수 있을 것으로 사료된다.

The purpose of this study is to evaluate gastric motility of conscious minipigs with ultrasonography from contraction number of the pyloric antrum and gastric emptying time (GET). Five-month-old, clinically healthy minipigs weighing 13.5-15 kg were used for this experiment. Assessment of gastric motility was performed using saline (10 ml/kg) in all five minipigs. Contraction number of the pyloric antrum for 3 minutes and gastric emptying time were calculated. Gastric emptying time was considered to be the time at which the antral area returned to the basal value. The mean value of contraction number of the pyloric antrum before feeding was 1.60${\pm}$2.30 (mean${\pm}$SD) for 3 min and the overall mean value after saline administration was 5.40${\pm}$3.62 for 3 min. The mean value of GET by area was 58.06${\pm}$5.23 min. This data can be used as basic database for evaluation of gastric motility in minipigs as normal and various experimental models.

키워드

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