Photoacoustic breast scanner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 18, 2001
Issued Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Oct 4, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and apparatus for measuring and characterizing the localized electromagnetic wave absorption properties of biologic tissues in vivo, using incident electromagnetic waves to produce resultant acoustic waves. Multiple acoustic transducers are acoustically coupled to the surface of the tissue for measuring acoustic waves produced in the tissue when the tissue is exposed to a pulse of electromagnetic radiation. The multiple transducer signals are then combined to produce an image of the absorptivity of the tissue, which image may be used for medical diagnostic purposes. In specific embodiments, the transducers are moved to collect data from multiple locations, to facilitate imaging. Specific arrangements of transducers are illustrated. Also, specific mathematical reconstruction procedures are described for producing images from transducer signals.
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