Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Diagnostic Imaging Features of Asymptomatic Extrahepatic Portosystemic Shunt Detected by CT in Dogs

개에서 컴퓨터단층촬영술을 이용하여 진단한 임상증상이 없는 간외성 전신문맥단락의 영상학적 평가

  • Choi, Soo-Young (Ian Animal Diagnostic Imaging Center) ;
  • Lee, In (Ian Animal Diagnostic Imaging Center) ;
  • Choi, Ho-Jung (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Lee, Young-Won (College of Veterinary Medicine.Research Institute of Veterinary Medicine, Chungnam National University)
  • 최수영 (이안동물영상의학센터) ;
  • 이인 (이안동물영상의학센터) ;
  • 최호정 (충남대학교 수의과대학.동물의과학연구소) ;
  • 이영원 (충남대학교 수의과대학.동물의과학연구소)
  • Accepted : 2013.08.10
  • Published : 2013.08.31
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Abstract

This study was performed to compare clinical and diagnostic imaging features between asymptomatic and symptomatic extrahepatic portosystemic shunts in dogs. The data of thirty patients diagnosed with extrahepatic PSS by multi-detector CT were reviewed, and the dogs were divided into asymptomatic (9/30) and symptomatic (21/30) groups. Signalments, hematologic results, liver size, morphologic classifications and main portal vein to abdominal aortic ratio (PV/AO) at the porta hepatis level from CT images were evaluated in two groups. Shih-tzu (5/9) was the most frequent breed in asymptomatic group, and various breeds were presented in symptomatic group. Mean age of asymptomatic group ($9.2{\pm}3.2$ years) was significantly higher than that of symptomatic group ($4.5{\pm}3.2$ years). The most morphologic form of shunt vessel was the splenophrenic shunt (16/30). PV/AO of asymptomatic group ($1.1{\pm}0.19$) was significantly higher than the values of symptomatic group ($0.55{\pm}0.19$). Clinical signs, hematologic results and diagnostic imaging findings of asymptomatic PSS are too nonspecific to suspect PSS. Therefore, considering of patient's age and CT examination with application of PV/AO ratio could be useful for the diagnosis of asymptomatic PSS.

Keywords

References

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