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研究哺乳动物脑对超声的衰减和传播速率为脑的发育、异常或病变等的监测提供了相应观察和分析的辅助参数,其直接攸关于生物大分子组织对噪声的散射和吸收。本文报道了超声在不同年龄(从婴儿、青年、中年到老年)的正常人脑中衰减吸收和传播速率及其对频率、温度等客观因素的从属性,并同时观察和类比了猴及鼠类脑组织对超声辐射的散射和平均吸收作用。
Research on mammalian brain attenuation and propagation of ultrasound provides additional parameters for the observation and analysis of brain development, abnormalities, or lesions, and it is directly related to the scattering and absorption of noise by biological macromolecules. This paper reports the attenuation absorption and transmission rate of ultrasound in normal human brain at different ages (from infants, young, middle-aged to old age) and its subordination to the objective factors such as frequency and temperature. At the same time, Scattering and average absorption of brain-like ultrasound radiation.