Thermoacoustic CT with radio waves: a medical imaging paradigm

Radiology. 1999 Apr;211(1):275-8. doi: 10.1148/radiology.211.1.r99ap05275.


The authors evaluated images obtained with a prototypic thermoacoustic computed tomographic (CT) scanner constructed for use at 434 MHz, a promising radio frequency for detecting breast cancer. In one excised porcine kidney, acoustic energy emanating from the kidney was detected with transducers. The resultant electric signals were used to create a three-dimensional data set. Two-dimensional images reconstructed in multiple planes were compared with state-of-the-art T1- and T2-weighted magnetic resonance images. The renal outline, parenchyma, and collecting system were clearly delineated on the thermoacoustic CT images.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Acoustics
  • Animals
  • Female
  • Humans
  • Image Processing, Computer-Assisted / methods
  • Kidney / diagnostic imaging
  • Radio Waves*
  • Swine
  • Tomography Scanners, X-Ray Computed
  • Tomography, X-Ray Computed / methods*