Thermoacoustic computed tomography of the breast at 434 MHz

Thermoacoustic computed tomography of the breast at 434 MHz

The authors have constructed a thermoacoustic tomography (TACT) imaging device for mapping the three-dimensional absorption of 434 MHz radiowaves in the human breast. Contrast variations in these images reflect differences in bound water content of the constituent tissues of the breast. As anticipat...

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Bibliographic Details
Published in:1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Vol. 2; pp. 591 - 594 vol.2
Main Authors: Kruger, R.A., Kiser, W.L., Reinecke, D.R., Kruger, G.A., Eisenhart, R.L.
Format: Conference Proceeding Journal Article
Language:English
Published: IEEE 1999
Subjects:
Biological tissues
Biomedical imaging
Breast
Computed tomography
Electromagnetic wave absorption
Frequency
Medical imaging
Microwave generation
Optical imaging
Photoacoustic effect
Radio waves
Signal generators
Spatial resolution
Tissue
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Summary:The authors have constructed a thermoacoustic tomography (TACT) imaging device for mapping the three-dimensional absorption of 434 MHz radiowaves in the human breast. Contrast variations in these images reflect differences in bound water content of the constituent tissues of the breast. As anticipated, initial images have displayed excellent soft tissue differentiation between fatty and fibroglandular tissue with spatial resolution of 1.5-4 mm throughout a 2000 mm/sup 3/ imaging volume using safe levels of 434 MHz radiation. The imaging technique has great potential for breast cancer detection.
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ISBN:0780351355
9780780351356
ISSN:0149-645X
DOI:10.1109/MWSYM.1999.779831