Which receiver function eliminates the weaker reflections?

The threshold function is designed to identify and eliminate weaker reflections in the received ultrasound signal. This process involves establishing a specific level of reflection strength, below which signals are ignored or suppressed during the image formation process. By setting this threshold, the system ensures that only significant echoes, which contribute meaningfully to the diagnostic image, are processed and displayed. This function is particularly important in enhancing the overall quality of the ultrasound image by reducing noise and improving the clarity of relevant structures.

In contrast, compression adjusts the dynamic range of the received signals, making the brighter reflections more recognizable without specifically targeting weak reflections. Amplification uniformly boosts all signals, strengthening both weak and strong echoes, which may not achieve the desired clarity if the weaker signals do not add value to the diagnostic image. Compensation is utilized to correct for time-gain effects, managing the strength of echoes from deeper structures but does not inherently eliminate weaker reflections. Each of these functions plays a distinct role in the processing of ultrasound data, with the threshold function being the most direct method for excluding weaker reflections.