BONE DENSITOMETRY USING COMPUTED TOMOGRAPHY .1. SELECTIVE DETERMINATION OF TRABECULAR BONE DENSITY AND OTHER BONE-MINERAL PARAMETERS - NORMAL VALUES IN CHILDREN AND ADULTS

被引：52

作者：

EXNER, GU ^{[1
]}

PRADER, A ^{[1
]}

ELSASSER, U ^{[1
]}

RUEGSEGGER, P ^{[1
]}

ANLIKER, M ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL, INST BIOMED ENGN, CH-8044 ZURICH, SWITZERLAND

来源：

BRITISH JOURNAL OF RADIOLOGY | 1979年 / 52卷 / 613期

关键词：

D O I：

10.1259/0007-1285-52-613-14

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Gamma-ray computed tomography (γ-ray CT), using a special purpose scanner, enables in-vivo quantitative analysis of bone mineralization. Trabecular bone density (TBD), the relative amount of compact bone (bone density, BD) and the total absorption (TA) for a cross-section of the radius are determined from measurements of local linear absorption coefficients. A preliminary study of normal children (n = 49) and adults (n = 34) indicated that TBD is independent of age and sex in the age range 4 to 40 yr. BD remains constant throughout childhood but increases after puberty in both women and men. TA is higher for adults than for children, and also higher for men than for women. A correlation between TA and parameters relating to body size indicates a relationship between body weight and bone mass.

引用

页码：14 / 23

页数：10

共 19 条

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