一、前言多普勒超声流速波形记录,通常用来检查和确定下肢动脉疾病。由于探头受到声束与动脉长轴间夹角的影响,这些记录的定量分析方法之一是应用搏动指数进行(GOS-Ling)和KING,1974)。这个无量纲指数的定义是,波形幅度的峰一峰值除以它的平均值。而其它指数可能等于、甚至大于HARRIS等(1974)、FIIZGERALD和CARR(1975)所报告的数值(SKIDMOR等1980),JOHNSTON等(1978)已经证 I. Introduction Doppler ultrasound flow waveform records, usually used to check and determine the lower extremity arterial disease. One of the quantitative methods used for these recordings was GOS-Ling and KING (1974) due to the probe being affected by the angle between the sound beam and the long axis of the artery. The definition of this dimensionless index is that the peak-to-peak amplitude of the waveform is divided by its average value. While other indices may be equal to or even larger than those reported by HARRIS et al. (1974), FIIZGERALD and CARR (1975) (SKIDMOR et al. 1980), JOHNSTON et al. (1978)