Question

You have selected an multi-frequency transducer to perform an abdominal ultrasound examination. For this study, you wish to reduce attenuation as much as possible.

Which frequency selection would reduce sound attenuation most effectively?
a) 3.0 MHz
b) 3.5 MHz
c) 4.0 MHz
d) 5.0 MHz
e) Attenuation is not affected by frequency

Answer 1

To minimize attenuation in an abdominal ultrasound, the lowest frequency option, which is 3.0 MHz, should be selected as it allows deeper penetration with the least attenuation.

Step-by-step explanation:

To reduce sound attenuation most effectively during an abdominal ultrasound examination, the selection of a lower frequency transducer would be most appropriate. Attenuation refers to the loss of signal strength as the ultrasound waves pass through tissue, and it is indeed affected by frequency. Lower frequencies penetrate deeper into the body with less attenuation, allowing for better imaging of deeper structures. Therefore, the correct answer is: a) 3.0 MHz, which is the lowest frequency among the options given and would thus reduce sound attenuation most effectively during the ultrasound examination.