Which statement is true regarding frame rate at shallow imaging versus deep imaging?

In ultrasound imaging, frame rate refers to the number of images or frames that can be produced per second. When comparing shallow imaging to deep imaging, shallow imaging typically allows for a higher frame rate. This is because the time it takes for the ultrasound pulse to travel to the desired depth and back to the transducer is shorter in shallow imaging.

As the imaging depth increases, the ultrasound pulse must travel a greater distance, which requires more time for each pulse-echo cycle. This increase in travel time reduces the overall number of frames that can be captured in a given second, resulting in a lower frame rate for deeper imaging. In shallow imaging, since the distance is shorter, the ultrasound can send and receive more cycles in that same timeframe, effectively increasing the frame rate.

Thus, the statement that frame rate increases for shallow imaging accurately reflects the relationship between imaging depth and frame rate, making it the correct choice.