Q:

Which of the following imaging modalities does NOT involve the use of “ionising radiation”?

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Which of the following imaging modalities does NOT involve the use of “ionising radiation”?


  1. mammography
  2. ultrasound
  3. a scintigram using technetium
  4. a chest x-ray

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B: Ultrasound produces an oscillation in the particles of the body, but does not use ionising electromagnetic radiation.

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