Podcast
Questions and Answers
What frequency range is typically used for medical imaging with ultrasound?
What frequency range is typically used for medical imaging with ultrasound?
- 20 to 200 MHz
- 20 to 200 kHz
- 2 to 20 kHz
- 2 to 20 MHz (correct)
How does the frequency of ultrasound waves affect resolution and penetration?
How does the frequency of ultrasound waves affect resolution and penetration?
- Higher frequency degrades resolution but improves penetration
- Higher frequency degrades resolution and penetration
- Higher frequency improves resolution and penetration
- Higher frequency improves resolution but reduces penetration (correct)
What is the speed of sound in a material dependent on?
What is the speed of sound in a material dependent on?
- Volume and temperature of the material
- Density and compressibility of the material (correct)
- Density and temperature of the material
- Volume and compressibility of the material
How is frequency measured in ultrasound waves?
How is frequency measured in ultrasound waves?
What happens to penetration as ultrasound frequency increases?
What happens to penetration as ultrasound frequency increases?
What is the range of ultrasound pulse frequency typically used in medical imaging?
What is the range of ultrasound pulse frequency typically used in medical imaging?
What determines the frequency of ultrasound pulses in diagnostic ultrasound equipment?
What determines the frequency of ultrasound pulses in diagnostic ultrasound equipment?
How do high frequency ultrasound pulses affect image quality and penetration depth?
How do high frequency ultrasound pulses affect image quality and penetration depth?
Why is the crystal material within the transducer of diagnostic ultrasound equipment described as piezoelectric?
Why is the crystal material within the transducer of diagnostic ultrasound equipment described as piezoelectric?
What effect does applying a single electrical pulse to the crystal within the transducer have?
What effect does applying a single electrical pulse to the crystal within the transducer have?
Why is it necessary to carefully select the ultrasound frequency for diagnostic procedures?
Why is it necessary to carefully select the ultrasound frequency for diagnostic procedures?
How can the ultrasound frequency be adjusted in diagnostic ultrasound equipment?
How can the ultrasound frequency be adjusted in diagnostic ultrasound equipment?
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