What is the PRP when imaging depth is 7 cm?

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Multiple Choice

What is the PRP when imaging depth is 7 cm?

Explanation:
PRP is the time it takes for one ultrasound pulse to travel from the transducer to the deepest depth being imaged and back. In soft tissue, sound speed is about 1540 m/s. For a depth of 7 cm (0.07 m), the pulse must cover 0.14 m round trip. PRP = distance/speed = 0.14 m / 1540 m/s ≈ 9.1 × 10^-5 s, which is about 91 microseconds. Therefore, the correct PRP is approximately 91 μs.

PRP is the time it takes for one ultrasound pulse to travel from the transducer to the deepest depth being imaged and back. In soft tissue, sound speed is about 1540 m/s. For a depth of 7 cm (0.07 m), the pulse must cover 0.14 m round trip. PRP = distance/speed = 0.14 m / 1540 m/s ≈ 9.1 × 10^-5 s, which is about 91 microseconds. Therefore, the correct PRP is approximately 91 μs.

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