Which concept refers to all time, including transmit and receive, when describing ultrasound intensity?

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Multiple Choice

Which concept refers to all time, including transmit and receive, when describing ultrasound intensity?

Explanation:
Temporal describes intensity in the time domain, covering the entire cycle from transmit through receive. In pulsed ultrasound, the beam is on for a portion of time and off for the rest, so the relevant exposure is the average intensity over the whole cycle—temporal-average intensity. This captures the actual energy tissue receives across both sending and listening phases. The other terms refer to particular aspects of the pulse or to specific space-time windows, but they don’t convey all-time exposure as clearly.

Temporal describes intensity in the time domain, covering the entire cycle from transmit through receive. In pulsed ultrasound, the beam is on for a portion of time and off for the rest, so the relevant exposure is the average intensity over the whole cycle—temporal-average intensity. This captures the actual energy tissue receives across both sending and listening phases. The other terms refer to particular aspects of the pulse or to specific space-time windows, but they don’t convey all-time exposure as clearly.

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