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英文誌(2004-)

Journal of Medical Ultrasonics

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1986 - Vol.13

Vol.13 No.02

Original Article(原著)

(0100 - 0110)

超音波断層法による小児の脾臓計測—小中学生についての検討—

Ultrasonographic Study on the Spleen of the School Children and Junior High School Students

二村 貢1, 高桑 薫2, 伊東 紘一3

Mitsugi FUTAMURA1, Kaoru TAKAKUWA2, Kouichi ITOH3

1高根村国民健康保険診療所, 2高山赤十字病院内科, 3自治医科大学臨床病理部

1Takane Village Clinic, 2Department of Internal Medicine, Takayama Red Cross Hospital, 3Department of Clinical Pathology, Jichi Medical School

キーワード : Ultrasonography, Spleen, School children and students, Normal range, Multiple regression analysis

 We studied on the normal splenic size of school children and junior high school students (6-15 years old) with a real-time ultrasound scanner (TOSHIBA SAL-32B, 5 MHz linear array transducer). Splenotomogram was taken by the left intercostal scanning in the right lateral decubitus. Spleen Index (SI) could be measured in 172 (male: 94, female: 78) of 207 cases. SI was defined as "A×B " by Koga's method, in which A was the maximum line of the longitudinal section of spleen, and B was the perpendicular line to A through the splenic hilus. C was defined as the vertical thickness through the splenic hilus. D was the line between splenic hilus and splenic edge. E line was measured horizontally from splenic edge to the lung air echo of the upper posterior portion.
 SI was significantly correlated with the age, height, weight, and body surface area (BSA). (male: r=0.534, 0.572, 0.634, 0.621, female: r=0.504, 0.572, 0.627, 0.620: p Multiple regression analysis was performed on purpose to predict the SI of unmeasured cases. The prediction were presented underformula.
  Male: SI=8.21×C+2.43×E+0.149×Weight-15.7
  Female: SI=7.43×C+1.88×E+0.197×Weight-13.0
These models were well appropriate statistically but had problem to clinical application, because they had the factor of physique. And this analysis showed the probability of C as the index of one dimension that appeals splenic size of children.