Imaging based on the ultrasonic vibration potential

Beveridge, Andrew C.; Wang, Shougang; Diebold, Gerald J.
November 2004
Applied Physics Letters;11/29/2004, Vol. 85 Issue 22, p5466
Academic Journal
An ultrasonic wave traversing a colloidal suspension causes distortion of the charge distributions at the sites of individual colloidal particles producing a voltage known as the ultrasonic vibration potential. We show how imaging of colloidal regions within a body can be carried out using a beam of ultrasound to produce a radio frequency vibration potential. A theory for image formation shows that Fourier transformation of vibration potential signals processed by a mixer and low pass filter gives the spatial distribution of colloid. The salient feature of the method, insofar as medical imaging is concerned, is its contrast mechanism.


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