Finn-Bodner S T, Park R D, Tyler J W, Twedt D C, Curtis C R
Department of Radiology and Radiation Biology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523.
Am J Vet Res. 1993 Jun;54(6):832-5.
Twelve resected canine gallbladders (in vitro) and the gallbladder in each of 14 dogs (in vivo) were ultrasonographically examined. Gallbladder volume was calculated from ultrasonographically measured geometric dimensions, using 4 volumetric model formulas: cone, ellipse, biplanar ellipse, and prolate ellipse. Calculated volume was compared with true gallbladder volume, as measured by water displacement. All examined models for calculation of gallbladder volume were closely associated with true gallbladder volume (P < 0.005), and all models provided accurate predictions of true gallbladder volume (r2 > 0.80). Calculated volumes can be corrected mathematically by use of the regression coefficient and constant for each model. Body weight was not significantly associated with gallbladder volume in any of the models considered. Use of ultrasonography to accurately measure gallbladder volume could be combined with synthetic cholecystokinin-stimulated gallbladder emptying to provide information about biliary function and patency in icteric animals. Such information could aid the clinical decision between surgical or medical treatment. Correction of calculated volumes would not be necessary in association with induced emptying studies, because volume change is more important than absolute volume.
对12个切除的犬胆囊（体外）以及14只犬中每只犬的胆囊（体内）进行了超声检查。使用4个体积模型公式（圆锥体、椭圆体、双平面椭圆体和长椭圆形），根据超声测量的几何尺寸计算胆囊体积。将计算出的体积与通过排水法测量的真实胆囊体积进行比较。所有用于计算胆囊体积的检查模型均与真实胆囊体积密切相关（P<0.005），并且所有模型均能准确预测真实胆囊体积（r2>0.80）。计算出的体积可以通过使用每个模型的回归系数和常数进行数学校正。在所考虑的任何模型中，体重与胆囊体积均无显著关联。使用超声准确测量胆囊体积可与合成胆囊收缩素刺激的胆囊排空相结合，以提供有关黄疸动物胆汁功能和通畅性的信息。此类信息有助于在手术或药物治疗之间做出临床决策。与诱导排空研究相关时，无需对计算出的体积进行校正，因为体积变化比绝对体积更重要。
