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ultrasound (cardiac imaging)

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Echocardiography uses ultrasound to provide a real-time image of the heart. Notably:

  • it is non-invasive and is thought to be harmless
  • the ultrasound generator and receiver is a piezo- electric crystal
  • for high resolution images a high frequency ultrasound must be used - this is 2 MHz for adults and 7 MHz for infants


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