BR9712262A - Scanner fotoacústico para mamas - Google Patents

Scanner fotoacústico para mamas

Info

Publication number
BR9712262A
BR9712262A BR9712262-9A BR9712262A BR9712262A BR 9712262 A BR9712262 A BR 9712262A BR 9712262 A BR9712262 A BR 9712262A BR 9712262 A BR9712262 A BR 9712262A
Authority
BR
Brazil
Prior art keywords
tissue
transducers
image
measuring
transducer signals
Prior art date
Application number
BR9712262-9A
Other languages
English (en)
Inventor
Robert A Kruger
Original Assignee
Optosonics Inc
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 Optosonics Inc filed Critical Optosonics Inc
Publication of BR9712262A publication Critical patent/BR9712262A/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0093—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
    • A61B5/0095—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy by applying light and detecting acoustic waves, i.e. photoacoustic measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0091—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for 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 
    • 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
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
    • A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
    • A61B5/4312—Breast evaluation or disorder diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/42—Details of probe positioning or probe attachment to the patient
    • A61B8/4272—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue
    • A61B8/4281—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue characterised by sound-transmitting media or devices for coupling the transducer to the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Acoustics & Sound (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Gynecology & Obstetrics (AREA)
  • Reproductive Health (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Heads (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

<B>SCANNER FOTOACúSTICO PARA MAMAS<B>. Métodos e aparelho para medir e caracterizar as propriedades de absorção de onda eletromagnética localizada de tecidos biológicos (12) in vivo, utilizando ondas eletromagnéticas incidentes para produzir ondas acústicas resultantes 26. Múltiplos transdutores acústicos 933) são acusticamente acoplados à superfície do tecido para medir ondas acústicas produzidas no tecido quando o tecido é exposto a um pulso de radiação eletromagnética. Os múltiplos sinais de transdutor são então combinados para produzir uma imagem da capacidade de absorção do tecido, cuja imagem pode ser utilizada para fins de diagnóstico médico. Em modalidades específicas, os transdutores são movidos para coletar dados de múltiplos locais, para facilitar a formação de imagem. Arranjos de transdutores específicos são ilustrados. Além disso, procedimentos de reconstrução matemática, específicos são descritos para produzir imagens dos sinais de transdutor.
BR9712262-9A 1996-10-04 1997-10-01 Scanner fotoacústico para mamas BR9712262A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/719,736 US5713356A (en) 1996-10-04 1996-10-04 Photoacoustic breast scanner
PCT/US1997/017832 WO1998014118A1 (en) 1996-10-04 1997-10-01 Photoacoustic breast scanner

Publications (1)

Publication Number Publication Date
BR9712262A true BR9712262A (pt) 2000-01-25

Family

ID=24891163

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712262-9A BR9712262A (pt) 1996-10-04 1997-10-01 Scanner fotoacústico para mamas

Country Status (9)

Country Link
US (4) US5713356A (pt)
EP (1) EP0942683B1 (pt)
JP (1) JP4341987B2 (pt)
AT (1) ATE408374T1 (pt)
AU (1) AU725072B2 (pt)
BR (1) BR9712262A (pt)
CA (1) CA2187701C (pt)
DE (1) DE69738998D1 (pt)
WO (1) WO1998014118A1 (pt)

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