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英文誌(2004-)

Journal of Medical Ultrasonics

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2001 - Vol.28

Vol.28 No.06

Original Article(原著)

(J927 - J932)

超音波断層法による小児腎長径の計測 -体位による計測値の変動について-

Sonographic Measurement of Renal Length in Children: Its Variation in Different Body Positions

中村 みちる, 谷口 信行, 川井 夫規子, 横田 京子, 小野 倫子, 王 怡, 重田 浩一朗, 尾本 きよか, 鯉渕 晴美, 伊東 紘一

Michiru NAKAMURA, Nobuyuki TANIGUCHI, Fukiko KAWAI, Kyoko YOKOTA, Tomoko ONO, Yi WANG, Kouichiro SHIGETA, Kiyoka OMOTO, Harumi KOIBUCHI, Kouichi ITOH

自治医科大学臨床検査医学

Department of Clinical Laboratory Medicine, Jichi Medical School

キーワード : artifact, children, kidney, measurement, ultrasonography

We ultrasonographically measured renal length in the major axis in children. Here we discuss the differences in measured lengths in the supine and prone positions. In study 1, which included 214 children, more than 60 percent of the kidneys measured longer in the supine than in the prone position. The difference (S-P: length in the supine position minus length in the prone position) was substantially greater in the left kidney. In study 2, we observed the relation between the kidney and the liver or spleen in 60 children prospectively to determine if artifacts had contributed to the observed differences. When the location of the liver or spleen was above the kidney, which may induce velocity displacement and renal duplication artifacts, the kidney tended to measure longer. We conclude that kidneys tend to measure longer in the supine than in the prone position. Difference in renal length in different positions was greater in the left kidney than in the right kidney. Sonographic artifacts are presumed to contribute to differences in measured length.