ULTRASOUND TRANSMISSION MEASUREMENTS THROUGH THE OS CALCIS

被引：119
|
作者：
ZAGZEBSKI, JA [1 ]
ROSSMAN, PJ [1 ]
MESINA, C [1 ]
MAZESS, RB [1 ]
MADSEN, EL [1 ]
机构：
[1] UNIV WISCONSIN, DEPT MED PHYS, MADISON, WI 53706 USA
来源：
CALCIFIED TISSUE INTERNATIONAL | 1991年 / 49卷 / 02期
关键词：
ULTRASOUND ATTENUATION; SPEED-OF-SOUND; BONE; OSTEOPOROSIS;
D O I：
10.1007/BF02565130
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
A method of measuring ultrasonic propagation in the os calcis was devised for assessing bone properties in humans. Speed-of-sound (SOS) and broadband ultrasound attenuation (BUA) were measured using broadband acoustic pulses transmitted and received by a pair of focused transducers. The transducers are mounted coaxially in a water tank with the subject's heel in between. Reproducibility of results in an adult male was 10% for the BUA and 1.2% for the SOS. Both SOS and BUA changed when the transmission path through the os calcis was varied. For a population of normal male subjects, SOS and BUA were correlated with densitometry results on the os calcis, but less well correlated to area density at remote sites.
引用
收藏
页码：107 / 111
页数：5
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