Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-05-12
2000-08-15
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600438, A61B 800
Patent
active
061049425
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. The tissue is exposed to modulating electromagnetic radiation, to produce modulating acoustic signals. The modulating acoustic signals are detected by an acoustic sensor which is primarily sensitive to acoustic radiation at a focal point distant from said sensor. Multiple measurements from multiple different focal points can then be combined into an image, or measurements at the same focal point at different excitation frequencies can be combined to produce an absorptivity spectrum for the tissue, either of which may be used for medical diagnostic purposes.
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: 4267736 (1981-05-01), Quate
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: 4874251 (1989-10-01), Thomas et al.
patent: 4950897 (1990-08-01), Mandelis et al.
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.
patent: 5657754 (1997-08-01), Rosencwaig
patent: 5713356 (1998-02-01), Kruger
patent: 5840023 (1998-11-01), Oraevsky et al.
Kruger, Photo-acoustic ultrasound, Med. Phys. 21(1): 127-131, 1994.
Kruger et al., Photoacoustic ultrasound: pulse production and detection of 0.5% liposyn, Med. Phys. 21(7): 1179-1184, 1994.
Kruger et al., Photoacoustic Ultrasound: Theory and Experimental Results, SPIE vol. 2134A: 114-121, 1994.
Nasoni et al., Thermoacoustic Emission by Deeply Penetrating Microwave Radiation, Poc. of IEEE Ultrasonic Symposium, 663-38, 1984.
Bowen et al., Some Experimental Results of the Thermoacoustic Imaging of Tissue Equivalent Phantom Materials, Proc. of IEEE Ultrasonic Symposium 2:823-27, 1981.
Bowen, Radiation-Induced Thermoacoustic Soft Tissue Imaging, Proc. of IEEE Ultrasonic Symposium 2: 817-822, Jun., 1981.
Hunter et al., Acoustic signals of nonthermal origin from high energy protons in water, J. Acoust. Soc. Am. 69(9), 1557-1562, Jun. 1981.
Bowen, Acoustic Radiation Temperature of 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.
Beard et al., Characterization of post mortem arterial tissue using time-resolved photoacoustic spectrosopy at 436, 461 and 532 nm, Phys. Med. Biol. 42 (1997) 177-198.
Shan et al., Modeling of a photoacoustic probe designed for medical applications, Ultrasonics 34 (1996) 575-577.
Ossoff et al., Computer-Assisted Surgical Techniques: A Vision for a Future of Otolaryngology--Head and Neck Surgery, Jrnl of Otolaryngology, vol. 23, No. 5 (1994) 354-359.
Chen et al., A new laser-ultrasound transducer for medical applications, Ultrasonics vol. 32, No. 4 (1994) 309-313.
Appledorn et al., Energy Deposition Patterns in the Breast at 1064 nm for Photoacoustic Ultrasound, SPIE vol. 2708 (1996) 655-664.
Fang et al., Microwave Applicators for Photoacoustic Ultrasonography, SPIE vol. 2708 (1996) 645-654.
Kruger et al., Photoacoustic ultrasound (PAUS)--Reconstruction tomography., Med. Phys. 22 (10), Oct. 1995, pp. 1605-1609.
Liu et al., Simulation of Photoacoustic Signal Production in Human Breast Phantoms at 1064 nm, SPIE vol. 2708, 1996, pp. 312-322.
Lateef Marvin M.
Optosonics, Inc.
Shaw Shawna
LandOfFree
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