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X线灰度与骨质厚度相关关系测试

Hits: 2121 Download times: 1507 Received:September 03, 2007

作者	Author	单位	Unit	E-Mail
钟红刚	ZHONG Hong-gang	北京工业大学生命学院，北京 100022 中国中医科学院骨伤科研究所	College of Life Science & Bioengineering,Beijing University of Technology,Beijing 100022,China
卜海滨	BU Hai-bin	中国中医科学院骨伤科研究所
董福慧	DONG Fu-hui	中国中医科学院骨伤科研究所

期刊信息：《中国骨伤》2008年21卷，第3期，第194-195页

DOI：doi:10.3969/j.issn.1003-0034.yyyy.nn.zzz

目的：在仅采用X线平片条件下实现对骨的局部区域进行三维测量。

方法：采用低速骨锯制作多层薄骨片，叠摞成螺旋阶梯，作为与临床实际拍摄对象最接近的标定块，测试了其厚度与X线灰度的相关关系。

结果：得到厚度与X线灰度的相关关系可用三次曲线拟合，并且在骨质厚度小于3.8 mm时，可以简化为线性拟合。

结论：借助本文骨性螺旋阶梯标定块，能实现通过X线平片灰度较精确地计算X线穿过的骨质厚度。

[关键词]:X线胶片骨放射测量术

Relationship between the gray level of X-ray photograph and the cortical thickness

Abstract:

Objective: In order to get three dimensional measurements simply an plain X-ray photographs.

Methods: The multi-layers of bone pieces were made by use of bone saw,and piled up to spiral ladder, which was used as a calibrating module for to living bone in clinics. The relationship between the cortical thickness and gray level of the X-ray photographs was obtained.

Results: The correlation can be described with a cubic regression curve,and it can be simplified to a linear regression equation when cortical thickness is small than 3.8 mm.

Conclusion: It can be realized to get three dimensional measures of the bone on plain X-ray photographs,by use of the bony spiral ladder described here.

KEYWORDS:X-Ray film Bones Radiometry

引用本文，请按以下格式著录参考文献：

中文格式:	钟红刚,卜海滨,董福慧.X线灰度与骨质厚度相关关系测试[J].中国骨伤,2008,21(3):194~195
英文格式:	ZHONG Hong-gang,BU Hai-bin,DONG Fu-hui.Relationship between the gray level of X-ray photograph and the cortical thickness[J].zhongguo gu shang / China J Orthop Trauma ,2008,21(3):194~195

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