Surgery – Truss – Pad
Patent
1993-07-16
1996-09-17
Smith, Ruth S.
Surgery
Truss
Pad
128664, 128665, A61B 600
Patent
active
055558852
ABSTRACT:
A method of breast tissue examination using time-resolved spectroscopy includes the following steps. A support that includes an input port and an output port separated by a selected distance is positioned relative to the examined breast. Locations of the input and output ports are selected to examine a tissue region of the breast. Light pulses of a selected wavelength and duration less than a nanosecond are introduced into the breast tissue at the input port and detected over time at the detection port. Signals corresponding to photons of detected modified pulses are accumulated over time. Values of a scattering coefficient or an absorption coefficient of the examined breast tissue are calculated based on the shape of the modified pulses. The examined breast tissue is characterized based on the values of the scattering coefficient or the absorption coefficient. Absorbing or fluorescing contrast agents may be introduced into the examined tissue. This method may be used in conjunction with x-ray mammography, needle localization procedure or MRI mammography.
REFERENCES:
patent: 4223680 (1980-09-01), Jobsis
patent: 4281645 (1981-08-01), Jobsis
patent: 4321930 (1982-03-01), Jobsis et al.
patent: 4556057 (1985-12-01), Hiruma et al.
patent: 4675529 (1987-06-01), Kushida
patent: 4832035 (1989-05-01), Cho et al.
patent: 4972331 (1990-11-01), Chance
patent: 5062431 (1991-11-01), Potter
patent: 5090415 (1992-02-01), Yamashita et al.
patent: 5119815 (1992-09-01), Chance
patent: 5187672 (1993-02-01), Chance et al.
patent: 5348018 (1994-09-01), Alfano et al.
Cardio-Green.RTM. (CG.RTM.), HW&D Brand of Sterile Indocyanine Green, USP (1981).
O'Leary, Boas, Chance, Yodh, "Refraction of Diffuse Photon Density Waves," Phys. Rev. Lett. 69:2658 (1992).
Boas, O'Leary, Chance, Yodh, "Scattering and wavelength transduction of diffuse photon density waves," Physical Review E 47:2999-3002 (May, 1993).
Bonner et al., "A Random Walk Theory of Time-Resolved Optical Absorption Spectroscopy in Tissue", Photon Migration in Tissues ed. Britton Chance, 1989, Plenum Press.
Chance et al., "Comparison of time-resolved and -unresolved measurements of deoxyhemoglobin in brain", Proc. Natl. Acad. Sci. USA 85:4971-4975 (1988).
Chance, "Time-Resolved Spectroscopy of Hemoglobin and Myoglobin in Resting and Ischemic Muscle", Analytical Biochemistry 174:698-707 (1988).
Kang et al., "Breast Tumor Characterization Using NIR Spectroscopy" Abstract Paper 1888-55, Biomedical Optics 1993, Jan. 16-22.
Kang et al., "Breast Tumor Characterization Using Near-Infra-Red Spectroscopy", SPIE Proceedings, 1888 Photon Migration and Imaging in Random Media and Tissues, ed. Britton Chance.
Lakowicz, "Gigahertz Frequency-Domain Fluorometry: Resolution of Complex Intensity Decays, Picosecond Processes and Future Developments", Photon Migration in Tissues, pp. 169-186 (1989), Plenum Press.
Non-Invasive Technology Inc.
Smith Ruth S.
LandOfFree
Examination of breast tissue using time-resolved spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Examination of breast tissue using time-resolved spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Examination of breast tissue using time-resolved spectroscopy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-407738