Photoacoustic breast scanner

Details Photoacoustic breast scanner Photoacoustic breast scanner

1996-10-04

1998-02-03

Jaworski, Francis

Surgery

Truss

Pad

12866007, A61B 800

Patent

active

057133565

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.

REFERENCES:
patent: 4059010 (1977-11-01), Sachs
patent: 4233988 (1980-11-01), Dick et al.
patent: 4246784 (1981-01-01), Bowen
patent: 4255971 (1981-03-01), Rosencwaig
patent: 4385634 (1983-05-01), Bowen
patent: 4481821 (1984-11-01), Chamuel
patent: 4484820 (1984-11-01), Rosencwaig
patent: 4681120 (1987-07-01), Kunii
patent: 5070733 (1991-12-01), Nagata et al.
patent: 5170666 (1992-12-01), Larsen
patent: 5348002 (1994-09-01), Caro
patent: 5402786 (1995-04-01), Drummond
patent: 5615675 (1997-04-01), O'Donnell et al.
Kruger, RA, "Photo-acoustic ultrasound." Med. Phys. 21(1): 127-131, 1994.
Kruger, RA and Liu, PY, "Photoacoustic ultrasound: pulse production and detection in 0.5% liposyn." Med. Phys. 21(7): 1179-1184, 1994.
Kruger, RB and Liu, PY, "Photoacoustic Ultrasound: Theory and Experimental Results" SPIE vol. 2134A: 114-121, 1994.
Nasoni et al., "Thermoacoustic Emission by Deeply Penetrating Microwave Radiation" Proc. Of IEEE Ultrasonic Symposium, 633-638, 1984.
Bowen et al., "Some Experimental Results on the Thermoacoustic Imaging of Tissue Equivalent Phantom Materials", Proc. Of IEEE Ultrasonic Symposium 2: 823-827, 1981.
Bowen, T., "Radiation-Induced Thermoacoustic Soft Tissue Imaging", Proc. Of IEEE Ultrasonic Symposium 2: 817-822, 1981.
Hunter et al., "Acoustic signals of nonthermal origin from high energy protons in water", J. Acoust. Soc. Am. 69(6), 1557-1562, Jun. 1981.
Bowen, T., "Acoustic Radiation Temperature for Non-Invasive Thermometry" Automedica, vol. 8, 247-267, 1987.
Hebden et al., "Tomographic Imaging Using Picosecond Pulses of Light" SPIE vol. 1443: Medical Imaging V: Image Physics 294-300, 1991.

Affiliated with

Also associated with

Rating

Photoacoustic breast scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoacoustic breast scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoacoustic breast scanner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-654867