超声波测量胆囊体积方法的比较

Comparison of the cone and the ellipse formula for the measurement of gallbladder volume via ultrasonography

目的:探索圆锥体公式计算胆囊容积的临床实用性和正确性。材料与方法:运用B型超声波测量10例接受胆囊切除术患者术前胆囊各径线,分别用圆锥体公式、椭圆体公式计算胆囊容积,手术切除胆囊后测得胆汁容积为实际容积,对比分析三种方法结果,评价圆锥体公式计算胆囊容积的准确性。结果:圆锥体公式计算所得的胆囊容积较椭圆体公式更接近实际测量数值,两方法所计算出的胆囊容积有统计学差别P<005;椭圆体公式计算结果与实际容积间存在统计学差别P<005,而圆锥体公式结果与实际容积间没有统计学差异P>005。结论:圆锥体公式较椭圆体公式更接近实际容积并能代表胆囊实际容积。

Objective:To evaluate the cone formula for the measurement of gallbladder volume by ultrasound.Methods:Ten cases of gallbladder with stones or gallbladder polyps were measured by ultrasound preoperatively,by which the gallbladder volume may be calculated using the cone formula and the ellipse formula respectively.The real gallbladder volume came from the volume of aspirated bile in gallbladder during operation.Three measurement were compared.Results:Significant difference was found in gallbladder volume between the cone formula and the ellipse formula(P<0 05),as well as the ellipse formula and real volume (P<0 05),but no difference between the cone formula and real volume (P>0 05).Conclusion:The cone formula is more accurate than the ellipse formula for the measurement of gallbladder volume and closer to the real volume.