Dynamic range is defined as the ratio of the smallest to largest amplitude that can be processed without distortion.

Dynamic range is defined as the ratio of the smallest to largest amplitude that can be processed without distortion.

• A. False
• B. Depends on frequency
• C. Depends on depth
• D. True

Answer: (D)

Dynamic range represents the span of amplitudes an ultrasound system can handle without distortion, from the smallest echoes that are still detectable to the largest echoes that can be processed without clipping. This is typically defined as the ratio between the largest undistorted signal and the smallest detectable signal, often written in decibels (20 log10 of Amax/Amin). That wide range allows the system to display many gray shades, preserving subtle differences in tissue echogenicity. The statement captures this idea by referring to the extremes of amplitude the system can process without distortion, so it is true.

Dynamic range represents the span of amplitudes an ultrasound system can handle without distortion, from the smallest echoes that are still detectable to the largest echoes that can be processed without clipping. This is typically defined as the ratio between the largest undistorted signal and the smallest detectable signal, often written in decibels (20 log10 of Amax/Amin). That wide range allows the system to display many gray shades, preserving subtle differences in tissue echogenicity. The statement captures this idea by referring to the extremes of amplitude the system can process without distortion, so it is true.