CA2203927A1 - Microwave method to detect and locate cancers in heterogenous tissues - Google Patents

Microwave method to detect and locate cancers in heterogenous tissues

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Publication number
CA2203927A1
CA2203927A1 CA002203927A CA2203927A CA2203927A1 CA 2203927 A1 CA2203927 A1 CA 2203927A1 CA 002203927 A CA002203927 A CA 002203927A CA 2203927 A CA2203927 A CA 2203927A CA 2203927 A1 CA2203927 A1 CA 2203927A1
Authority
CA
Canada
Prior art keywords
backscatter
wave
living tissue
develop
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002203927A
Other languages
French (fr)
Other versions
CA2203927C (en
Inventor
Jack E. Bridges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2203927A1 publication Critical patent/CA2203927A1/en
Application granted granted Critical
Publication of CA2203927C publication Critical patent/CA2203927C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/502—Clinical applications involving diagnosis of breast, i.e. mammography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  using microwaves or terahertz waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0435—Supports, e.g. tables or beds, for the body or parts of the body with means for imaging suspended breasts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/508—Clinical applications for non-human patients

Abstract

A method and system for detecting an incipient tumor in living tissue such as that of a human breast in accordance with differences in relative dielectric characteristics. A generator produces a non-ionizing electromagnetic input wave of preselected frequency, usually exceeding three gigahertz, and that input wave is used to irradiate the living tissue, being effectively focused into a minute, discrete volume within the tissue to develop a non-ionizing electromagnetic wave at that position. The illumination location is shifted over a portion of the living tissue in a predetermined scanning pattern. Backscatter signal returns from the living tissue are collected to develop a backscatter return signal wave. The backscatter wave is processed to segregate skin tissue backscatter to develop a segregated backscatter wave signal; that segregated signal, in turn, is employed to detect any anomaly, caused by differences in relative dielectric characteristics, that is indicative of the presence of a tumor or other abnormality in the scanned living tissue.
CA002203927A 1996-05-02 1997-04-28 Microwave method to detect and locate cancers in heterogenous tissues Expired - Lifetime CA2203927C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/641,834 US5829437A (en) 1994-07-01 1996-05-02 Microwave method and system to detect and locate cancers in heterogenous tissues
US08/641,834 1996-05-02

Publications (2)

Publication Number Publication Date
CA2203927A1 true CA2203927A1 (en) 1997-11-02
CA2203927C CA2203927C (en) 2004-11-23

Family

ID=24574034

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002203927A Expired - Lifetime CA2203927C (en) 1996-05-02 1997-04-28 Microwave method to detect and locate cancers in heterogenous tissues

Country Status (3)

Country Link
US (1) US5829437A (en)
EP (1) EP0804900A1 (en)
CA (1) CA2203927C (en)

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Also Published As

Publication number Publication date
US5829437A (en) 1998-11-03
EP0804900A1 (en) 1997-11-05
CA2203927C (en) 2004-11-23

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