When the depth of view is set to 15.4 cm, PRF is ______.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

When the depth of view is set to 15.4 cm, PRF is ______.

Explanation:
PRF is tied to how long it takes for sound to travel to the furthest imaging depth and back, since a new pulse is sent only after echoes from that depth return. The relationship is PRF = c / (2d), where c is the speed of sound in tissue (about 1540 m/s) and d is the depth of view. With a depth of 15.4 cm (0.154 m), PRF ≈ 1540 / (2 × 0.154) = 1540 / 0.308 ≈ 5000 Hz. So the PRF is about 5000 Hz. This inverse relationship means deeper imaging lowers PRF, while shallower imaging raises it.

PRF is tied to how long it takes for sound to travel to the furthest imaging depth and back, since a new pulse is sent only after echoes from that depth return. The relationship is PRF = c / (2d), where c is the speed of sound in tissue (about 1540 m/s) and d is the depth of view.

With a depth of 15.4 cm (0.154 m), PRF ≈ 1540 / (2 × 0.154) = 1540 / 0.308 ≈ 5000 Hz. So the PRF is about 5000 Hz. This inverse relationship means deeper imaging lowers PRF, while shallower imaging raises it.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy