title: [Comparative study of portal-systemic shunt rate measured by formula and radioactive method].
abstract: OBJECTIVE
  To establish a new simple and useful formula for the observation of portosystemic shunt.
  
  
  METHODS
  In the same animals and the same patients, portosystemic shunt rate was measured individually by the two different methods, i.e. formula and radio active method. Using the results of the radio active method as a gold standard, the reliability of the formula method was assessed tested.
  
  
  RESULTS
  In 11 normal dogs, the portal-systemic shunt rate measured by the formula and radio active methods was 7.03% and 7.55% respectively (P > 0.05). In 9 portosystemic shunting model dogs, the portosystemic shunt rate calculated from the two methods was 48.64% and 51.11% respectively (P > 0.05). In 22 patients with portal hypertension, the preoperative results from the formula and radioactive methods were 52.38% and 55.86% respectively (P > 0.05). In these patients, the postoperative portal-systemic shunt rate was 26.22% and 31.00% respectively (P > 0.05).
  
  
  CONCLUSIONS
  These results fully testified the reliability of the formula method we had established.
authors.affiliation: Department of General Surgery, Third Clinical Hospital, Norman Bethune University of Medical Sciences, Changchun 130031.
authors.forename: J
authors.initials: J
authors.lastname: Liu
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: M
authors.initials: M
authors.lastname: Zheng
authors.forename: F
authors.initials: F
authors.lastname: Song
authors.forename: X
authors.initials: X
authors.lastname: Meng
mesh_terms: D000328:Adult; D000818:Animals; D001811:Blood Volume Determination / Q000379:methods*; D004195:Disease Models, Animal; D004285:Dogs; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011170:Portasystemic Shunt, Surgical; D011877:Radionuclide Imaging