Doppler Effect: Calculating Apparent Frequency
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Questions and Answers

What is Focused Ultrasound Surgery (FUS) used for?

  • Guiding 'key hole surgery'
  • Cleaning teeth in dental hygiene
  • Detecting prostate cancer early
  • Treating benign and malignant tumors and other disorders (correct)

What is the primary concern regarding the safety of ultrasound?

  • High doses of ultrasound energy
  • The formation of bubbles in the body
  • The development of heat in tissues
  • All of the above (correct)

What is the significance of mammography in breast cancer screening?

  • It is used to detect breast pathology only
  • It is a high-cost, high-radiation-dose procedure
  • It is not effective in detecting breast cancer
  • It is a low-cost, low-radiation-dose procedure (correct)

What is the advantage of fluoroscopy over other imaging techniques?

<p>It allows real-time x-ray viewing of the patient (C)</p> Signup and view all the answers

What is the purpose of ultrasound in dental hygiene?

<p>To clean teeth (D)</p> Signup and view all the answers

What is the significance of breast cancer incidence in women in the United States?

<p>It accounts for 32% of cancer incidence and 18% of cancer deaths (D)</p> Signup and view all the answers

What is the apparent change in pitch of a sound due to?

<p>The Doppler effect (B)</p> Signup and view all the answers

What is the formula to calculate the apparent frequency due to the Doppler effect?

<p>f' = f ± u / c (A)</p> Signup and view all the answers

What is the purpose of Lithotripsy?

<p>To break up kidney stones using ultrasound shockwaves (D)</p> Signup and view all the answers

What is the name of the machine used in Lithotripsy?

<p>Lithotripter (B)</p> Signup and view all the answers

What is a major advantage of Lithotripsy over traditional surgery?

<p>It is virtually painless and does not require surgery (D)</p> Signup and view all the answers

Approximately how many patients are treated annually with Lithotripsy in the USA?

<p>1,000,000 patients (C)</p> Signup and view all the answers

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