Analysis of a system for ultrasonic imaging of attenuation and texture in soft tissue.

摘要: Attenuation in tissue decreases both the amplitude and bandwidth of a reflected ultrasonic signal. Only is restored conventional equipment by amplifying signal time-gain-compensator. This paper describes method for restoring band-width an implemention this proposed. This consists two main parts: device estimating attenuation time-variable circuit. The circuit controlled estimated such that its transfer function approximates inverse within transducer passband. Its output then almost independent contains information on texture tissue. Both estimates are displayed graphically. quality image can be improved choosing wideband transducer, since it exclusively dependent bandwidth. The performance studied using simulated signals measured vitro.