Thermoacoustic CT with radio waves: a medical imaging paradigm.
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.
Kruger
R A
RA
Department of Radiology, Indiana University School of Medicine, Indianapolis 46202-5111, USA.
Kopecky
K K
KK
Aisen
A M
AM
Reinecke
D R
DR
Kruger
G A
GA
Kiser
W L
WL
D000162:Acoustics; D000818:Animals; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007668:Kidney / Q000000981:diagnostic imaging; D011846:Radio Waves; D013552:Swine; D015898:Tomography Scanners, X-Ray Computed; D014057:Tomography, X-Ray Computed / Q000379:methods*