Yuh I, Yamamoto I, Ohnaka Y, Takada M, Nakajima K, Masuda K, Murata K, Morita R
Department of Radiology, Shiga University of Medical Science.
Nihon Igaku Hoshasen Gakkai Zasshi. 1993 Nov 25;53(11):1340-6.
We measured the speed of sound (SOS) and broadband ultrasound attenuation (BUA) in the calcaneal bone and compared those values with bone mineral density (BMD) as assessed by single X-ray absorptiometry and dual energy X-ray absorptiometry. Calcaneal speed of sound and broad band ultrasound attenuation showed an earlier decrease with age than lumbar BMD, Calcaneal SOS and BUA correlated well with calcaneal BMD. Calcaneal SOS correlated more closely with neck BMD than lumbar BMD measured by DXA. Furthermore, measurement of calcaneal SOS is more useful than measurement of lumbar BMD to evaluate femoral neck BMD, which might be very important for clinical purposes. Both body weight and height correlated well with calcaneal BMD but not so well with calcaneal SOS or BUA. As ultrasound emits no radiation, we can use it without the restriction of radiation protection.
我们测量了跟骨的声速（SOS）和宽带超声衰减（BUA），并将这些值与通过单能X线吸收法和双能X线吸收法评估的骨矿物质密度（BMD）进行比较。跟骨声速和宽带超声衰减随年龄下降的时间比腰椎骨密度更早，跟骨SOS和BUA与跟骨BMD相关性良好。跟骨SOS与颈部BMD的相关性比通过双能X线吸收法测量的腰椎BMD更密切。此外，测量跟骨SOS比测量腰椎BMD对评估股骨颈BMD更有用，这在临床应用中可能非常重要。体重和身高与跟骨BMD相关性良好，但与跟骨SOS或BUA相关性不太好。由于超声不发射辐射，我们可以在不受辐射防护限制的情况下使用它。
