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Questions and Answers
How do different tissues interact with ultrasound waves?
How do different tissues interact with ultrasound waves?
- All tissues reflect the waves directly
- All tissues scatter the waves before reflecting them
- Some tissues reflect directly while others scatter the waves (correct)
- All tissues absorb the waves completely
What is the frequency range of ultrasound waves?
What is the frequency range of ultrasound waves?
- 20 Hz - 200 Hz
- 500 Hz - 5 kHz
- 20 kHz - Inaudible to humans (correct)
- 100 kHz - 200 kHz
Why do echoes from deep within the body need more amplification?
Why do echoes from deep within the body need more amplification?
- They are more attenuated compared to echoes from superficial parts (correct)
- They are naturally louder echoes
- Deep echoes are closer to the transducer
- They require less energy to amplify
What is the function of a piezoelectric transducer in ultrasound technology?
What is the function of a piezoelectric transducer in ultrasound technology?
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What role do transducers play in ultrasound scans?
What role do transducers play in ultrasound scans?
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