TY - JOUR
T1 - An evaluation of three-dimensional ultrasonography for the measurement of gallbladder volume
AU - Hashimoto, Senju
AU - Goto, Hidemi
AU - Hirooka, Yoshiki
AU - Itoh, Akihiro
AU - Ishiguro, Yoshihiro
AU - Kojima, Shinya
AU - Hirai, Takanori
AU - Hayakawa, Tetsuo
AU - Naitoh, Yasuo
PY - 1999/12
Y1 - 1999/12
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0032786122&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032786122&partnerID=8YFLogxK
U2 - 10.1016/S0002-9270(99)00671-1
DO - 10.1016/S0002-9270(99)00671-1
M3 - Article
C2 - 10606309
AN - SCOPUS:0032786122
SN - 0002-9270
VL - 94
SP - 3492
EP - 3496
JO - American Journal of Gastroenterology
JF - American Journal of Gastroenterology
IS - 12
ER -