Measurements of the microscopic structure of cortical bone.
Measurements of the microscopic structure of cortical bone.
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皮质骨微观结构的测量。
DOI：
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发表时间：
1977
影响因子：
3.5
通讯作者：
A. Beddoe
中科院分区：
文献类型：
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作者：
A. Beddoe
描述了一种技术，在该技术中，皮质骨的微观结构进行了分析，在可能的路径电离粒子采取的分布方面，因为它们横向的软组织腔和矿化成分。测量仅限于长骨中的横向平面，但建议从测量的横向分布生成近似全向路径长度分布的方法。结果提出了一些长骨的一个50岁的男子，一个9岁的男孩和一个年轻的成年比格犬，这些表明，相当大的结构差异发生在两个物种之间。文中还给出了一些常用结构参数的取值。例如，成年男性长骨中的平均横向空腔路径长度范围为67 - 99微米，而比格犬股骨中为29微米;通过矿化成分的相应平均路径长度为830-1040微米和1500微米。最后，估计成年男性皮质骨的总空腔加上骨膜表面约为6 m2。
A technique is described in which the microstructure of cortical bone is analysed in terms of distributions of possible paths which ionizing particles take as they transverse the soft-tissue cavities and mineralized component. Measurements are restricted to transverse planes in the long bones, but a method is suggested for generating approximate omnidirectional path-length distributions from the measured transverse distributions. Results are presented for some long bones of a 50 year old man, a 9 year old boy and a young adult beagle, and these suggest that considerable structural differences occur between the two species. Values of some commonly quoted structural parameters are also given. For example, mean transverse cavity path lengths range between 67 and 99 micron in the long bones of the adult man compared with 29 micron in the beagle femur; the corresponding mean path lengths through the mineralized component are 830-1040 and 1500 micron. Finally, the total cavity plus periosteal surface for cortical bone in adult man is estimated to be about 6 m2.