시쮸, 말티즈, 요크셔테리어 견에서 컴퓨터단층촬영을 이용한 뇌실 크기의 비교 평가

Comparative Evaluation of the Lateral Ventricles with Computed Tomography in Yorkshire Terrier, Maltese, and Shih-Tzu Dogs

  • 최호정 (충남대학교 수의과대학.동물의과학연구소) ;
  • 이기자 (오비히로 농과대학 임상수의학부) ;
  • 안세준 (충남대학교 수의과대학.동물의과학연구소) ;
  • 권영항 (충남대학교 수의과대학.동물의과학연구소) ;
  • 정기영 (충남대학교 수의과대학.동물의과학연구소) ;
  • 이희천 (경상대학교 수의과대학) ;
  • 이영원 (충남대학교 수의과대학.동물의과학연구소)
  • Choi, Ho-Jung (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Lee, Ki-Ja (Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine) ;
  • Ahn, Se-Joon (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Kwon, Young-Hang (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Jung, Ki-Young (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Lee, Hee-Chun (College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Young-Won (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University)
  • 심사 : 2010.12.08
  • 발행 : 2011.02.28

초록

본 실험은 서로 다른 세 품종의 소형견인 요크셔테리어, 말티즈, 시쮸 견 각각 30두 에서 컴퓨터단층촬영 검사를 이용하여 뇌실의 크기와 대칭성을 평가하고자 실시되었다. 측뇌실의 크기는 뇌의 시신경수준, 뇌실사이구멍수준, 그리고 악관절 수준에서 뇌실 높이와 너비 그리고 뇌반구의 높이 및 너비가 측정되었다. 뇌실의 크기는 뇌반구의 높이(Bh)와 뇌실의 높이(Vh)의 비율(Vh/Bh)로 평가하였고, 뇌실의 좌우 대칭성은 좌측과 우측의 뇌실 높이의 비(rVh)로 표시하였으며, 각각 정상 (rVh < 1.5), 경미한 확장 (1.5 < rVh < 2), 또는 심한 확장 (2.0 < rVh)로 구분하였다. 실험 결과 임상적으로 유의적이지 않은 뇌실 확장이 세 소형견종에서 흔히 관찰되었다. 그러나, 심각한 뇌실의 비대칭성은 거의 관찰되지 않는 것으로 나타났다. 또한, 측정 결과에 기초하여 약 11 mm의 뇌실 크기가 소형견종에서 정상적으로 나타날 수 있는 뇌실 확장의 상한치로 적용할 수 있을 것으로 생각된다.

This study was performed to evaluate the size and asymmetry of the lateral ventricles in CT images of three different small breed dogs. CT examinations were performed on thirty Yorkshire terriers, malteses, and shihtzu dogs, respectively. The size and asymmetry of their lateral ventricles were evaluated at three different levels of brain, and dogs were categorized on the basis of the percentage of their ventricular height (Vh) to brain height (Bh). Degree of asymmetry was also categorized based on the rVh (ratio of right and left ventricular heights) as normal (rVh < 1.5), mild (1.5 < rVh < 2.0), or severe (2.0 < rVh). Clinically insignificant ventricular dilation was common in these breed dogs. However, severe asymmetry was not presented in clinically normal dogs. We suggested 11 mm as an upper limit of ventricular size in normal small breed dogs.

키워드

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