If you choose a lower-frequency transducer to image a highly attenuating structure, what trade off are you making?

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

If you choose a lower-frequency transducer to image a highly attenuating structure, what trade off are you making?

Explanation:
Lower frequency waves suffer less attenuation, so they can image deeper into tissue. That’s why you’d choose a lower-frequency transducer for a highly attenuating structure. But the longer wavelength of these lower-frequency waves reduces spatial resolution, making the image blurrier. So you accept decreased spatial resolution in exchange for improved penetration. The round-trip travel time isn’t driven by frequency; it’s about depth and sound speed.

Lower frequency waves suffer less attenuation, so they can image deeper into tissue. That’s why you’d choose a lower-frequency transducer for a highly attenuating structure. But the longer wavelength of these lower-frequency waves reduces spatial resolution, making the image blurrier. So you accept decreased spatial resolution in exchange for improved penetration. The round-trip travel time isn’t driven by frequency; it’s about depth and sound speed.

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