ARDMS Ultrasound Physics & Instrumentation Practice Exam 2026 - Free Ultrasound Practice Questions and Study Guide

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What is the primary effect of changing the frequency of an ultrasound transducer?

It directly alters the depth of penetration and resolution

Changing the frequency of an ultrasound transducer primarily affects both the depth of penetration and the resolution of the images produced. Higher frequency transducers provide better spatial resolution because they generate shorter wavelengths that can better define small structures. However, these higher frequencies also lead to greater attenuation in tissue, reducing the depth of penetration. Conversely, lower frequency transducers penetrate deeper into the body but sacrifice some spatial resolution due to their longer wavelengths.

In summary, by altering the frequency, the ultrasound operator can balance between the depth of penetration and the resolution needed for specific imaging requirements, making this choice the most comprehensive in terms of how frequency impacts ultrasound imaging.

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It increases the temporal resolution of the images

It eliminates artifacts in the image

It affects the color Doppler functionality

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