Flax S W, Glover G H, Pelc N J, Gutmann F D, McLachlan M
Ultrasound Med Biol. 1983;Suppl 2:127-31.
This paper is concerned with the characterization of attenuation in tissue. A simple method for measuring frequency dependent attenuation is demonstrated. The effects of frequency dependent scatter on the measurement of attenuation are also considered in order to determine the theoretical and practical ramifications of this interfering effect. Finally, a means of placing definitive error bounds on the statistical reliability of the measurement is discussed.
本文关注组织中衰减的特性描述。展示了一种测量频率依赖性衰减的简单方法。还考虑了频率依赖性散射对衰减测量的影响,以确定这种干扰效应的理论和实际后果。最后,讨论了一种对测量的统计可靠性设置明确误差界限的方法。