Ultrasound Physics II Practice Exam

If frame rate increases, what happens to the time needed to make a frame?

Time per frame increases Time per frame stays the same Time per frame decreases Time per frame becomes negative

Correct Answer:

Time per frame decreases

Explanation:

Frame rate and the time to build a frame are inversely related. Frame rate is how many frames are produced every second, so the time allocated to each frame is 1 divided by the frame rate. If you push the frame rate higher, that per-frame time must get shorter to fit more frames into the same second. So the time per frame decreases. This higher pace can force quicker data acquisition and processing or require trade-offs like reduced depth or fewer lines. The idea that the time per frame would increase or go negative doesn’t fit the relationship between frame rate and frame time.

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