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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.
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Zhongguo gu shang = China journal of orthopaedics and traumatology
ISSN： 1003-0034
Year： 2008
Issue： 3
Volume： 21
Page： 194-195
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 1
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