An evaluation of three-dimensional ultrasonography for the measurement of gallbladder volume.
作者信息
Hashimoto S, Goto H, Hirooka Y, Itoh A, Ishiguro Y, Kojima S, Hirai T, Hayakawa T, Naitoh Y
机构信息
Second Department of Internal Medicine, Nagoya University School of Medicine, Japan.
出版信息
Am J Gastroenterol. 1999 Dec;94(12):3492-6. doi: 10.1111/j.1572-0241.1999.01612.x.
OBJECTIVE
Various three-dimensional ultrasonography systems have been developed. We estimated the accuracy of a three-dimensional ultrasonography system for measuring gallbladder volume and compared the results to the sum-of-cylinders method.
METHODS
In an in vitro study, 10 balloons of various shapes, sized 5-68 mL were scanned by real-time ultrasonography. In an in vivo study, we evaluated the gallbladder emptying of 14 healthy male volunteers after ingestion of two raw egg yolks. In both studies, volume measurement was performed by the three-dimensional ultrasonography method and the sum-of-cylinders method.
RESULTS
With the three-dimensional ultrasonography method, the mean difference between the measured volume and the true volume and the limits of agreement were smaller than those of the sum-of-cylinders method. Gallbladder volumes did not differ significantly with both ultrasound methods.
CONCLUSION
The three-dimensional ultrasonography method accurately determined gallbladder volumes.
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