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Questions and Answers
What causes acoustic enhancement in ultrasound imaging?
What causes acoustic enhancement in ultrasound imaging?
- The movement of particles caused by ultrasound waves
- A structure that causes marked attenuation of the ultrasound waves
- The resistance offered by tissues to the movement of particles caused by ultrasound waves
- A structure that causes little or no attenuation of the ultrasound waves (correct)
What is acoustic impedance equal to?
What is acoustic impedance equal to?
- The division of the density of the tissue and the speed of the ultrasound wave in the tissue
- The difference of the density of the tissue and the speed of the ultrasound wave in the tissue
- The product of the density of the tissue and the speed of the ultrasound wave in the tissue (correct)
- The sum of the density of the tissue and the speed of the ultrasound wave in the tissue
What is acoustic shadowing in ultrasound imaging?
What is acoustic shadowing in ultrasound imaging?
- The decreased echogenicity of tissues that lie behind a structure that causes marked attenuation of the ultrasound waves (correct)
- The increased echogenicity of tissues that lie behind a structure that causes little or no attenuation of the ultrasound waves
- The movement of particles caused by ultrasound waves
- The resistance offered by tissues to the movement of particles caused by ultrasound waves
What is the acoustic beam in ultrasound?
What is the acoustic beam in ultrasound?
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What does acoustic impedance depend on?
What does acoustic impedance depend on?
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