Grayscale systems typically reduce signal dynamic range using:

Grayscale systems reduce signal dynamic range primarily through compression. Compression is a technique used in ultrasound imaging that allows the system to compress the vast range of received signal amplitudes into a more manageable range that can be displayed. This is essential because the ultrasound signals can vary greatly in amplitude due to differences in tissue composition and depth. By applying compression, the system enhances the visualization of different tissue types, ensuring that the subtle differences in grayscale between various structures can be seen clearly on the monitor.

Compression adjusts the signal in a way that lower amplitude echoes are amplified more than higher amplitude echoes. This non-linear adjustment helps preserve the detail in the lower end of the signal range while preventing the higher amplitude signals from saturating the display, which can lead to loss of important diagnostic information. By maintaining a more uniform representation of the grayscale across the dynamic range, compression improves image quality and diagnostic accuracy.