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Pronunciation: ek'o


  1. A reverberating sound sometimes heard during auscultation of the chest.
  2. In ultrasonography, the acoustic signal received from scattering or reflecting structures or the corresponding pattern of light on a CRT or ultrasonogram.
  3. In magnetic resonance imaging, the signal detected following an inverting pulse.


Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.