Which term refers to the depth-related amplification compensation commonly known as depth gain compensation?

Which term refers to the depth-related amplification compensation commonly known as depth gain compensation?

• A. Depth gain compensation
• B. Frame averaging
• C. System shielding
• D. Dynamic range

Answer: (A)

Depth gain compensation is the term used to describe adjusting amplification with depth to offset the natural attenuation of ultrasound as it travels deeper. In practice, deeper echoes are amplified more than shallower ones, keeping image brightness uniform from near to far. This approach is often referred to as time gain compensation in many systems, but the concept remains the same: compensate depth-related loss by increasing gain with depth. The other terms don’t address depth-dependent amplification: frame averaging is about reducing speckle by combining frames, system shielding relates to reducing interference, and dynamic range defines the span of displayable signal intensities.

Depth gain compensation is the term used to describe adjusting amplification with depth to offset the natural attenuation of ultrasound as it travels deeper. In practice, deeper echoes are amplified more than shallower ones, keeping image brightness uniform from near to far. This approach is often referred to as time gain compensation in many systems, but the concept remains the same: compensate depth-related loss by increasing gain with depth. The other terms don’t address depth-dependent amplification: frame averaging is about reducing speckle by combining frames, system shielding relates to reducing interference, and dynamic range defines the span of displayable signal intensities.