Bone ultrasonic attenuation in women: reproducibility, normal variation and comparison with photon absorptiometry.

Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics Pub Date : 1992-02-01 DOI:10.1088/0143-0815/13/1/003

J G Truscott, M Simpson, S P Stewart, R Milner, C F Westmacott, B Oldroyd, J A Evans, A Horsman, C M Langston, M A Smith

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引用次数: 46

Abstract

The reproducibility of two methods of measuring broadband ultrasonic attenuation (BUA) in the calcaneus have been studied. An improvement in reproducibility in vivo from 9.6% to 2.8% between old and new techniques has been observed. Measurements of the calcaneus using BUA were correlated with measurements of bone mineral density measured by dual energy x-ray absorptiometry in the lumbar spine, femur and total body and bone mineral content in the distal and proximal forearm measured by single photon absorptiometry. For the older BUA technique the correlation coefficients ranged between r = 0.27 and r = 0.34. For the newer BUA technique the correlation coefficients ranged between r = 0.49 and r = 0.62 and were all significant (P less than 0.001).

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女性骨超声衰减:再现性、正常变化及与光子吸收测定法的比较。

研究了两种测量跟骨宽带超声衰减(BUA)的方法的重复性。观察到新旧技术在体内的可重复性从9.6%提高到2.8%。BUA测量的跟骨与双能x线骨密度测量的腰椎、股骨和全身骨密度以及单光子骨密度测量的前臂远端和近端骨密度相关。对于较老的BUA技术，相关系数在r = 0.27和r = 0.34之间。对于较新的BUA技术，相关系数在r = 0.49和r = 0.62之间，且均显著(P < 0.001)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics

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