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KMID : 0614620040440020071
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Korean Journal of Gastroenterology
2004 Volume.44 No. 2 p.71 ~ p.76
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The Measurement of Gastric Emptying Time with 3-D Ultrasonography
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김도영/Kim DY
정혜경/이유현/정성애/문일환/백진영/Jung HK/Lee YH/Jung SA/Moon IW/Paek JY
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Abstract
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Background/Aims: Three dimensional (3-D) ultrasonography is definitely more accurate than conventional 2-D ultrasonography in volume measurement of intra-abdominal organs. However, its application in measuring gastric emptying time has been limited. Thus, we tried to measure gastric antral emptying time by using 3-D ultrasonography and compare with that by radio-scintigraphy.
Methods: We performed both 3-D ultrasonography and radio-scintigraphy on the same day in 23 healthy subjects. After overnight fast, the subjects ingested 500 mL of soup meal (84 Kcal) that had been pre-mixed with 1 mCi of technetium99m. The half emptying time (T1/2) measured by 3-D ultrasonography was defined by the time when the gastric antral volume decreased to half.
Results: The mean T1/2 of 23 healthy subjects measured by 3-D ultrasonography was 23.4±10.5 min, while that measured by scintigraphy was 28.4±14.4 min. The difference (p=0.11 by paired t-test) between the two methods
was not significant. Moreover, no significant correlation of T1/2 between the two methods (r=0.361, p=0.09) was observed.
Conclusions: Measuring gastric antral emptying time with 3-D ultrasonography may be useful but require further validation studies and advance in technology.
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