AU2001280066A1 - Photoacoustic assay and imaging system - Google Patents

Photoacoustic assay and imaging system

Info

Publication number
AU2001280066A1
AU2001280066A1 AU2001280066A AU8006601A AU2001280066A1 AU 2001280066 A1 AU2001280066 A1 AU 2001280066A1 AU 2001280066 A AU2001280066 A AU 2001280066A AU 8006601 A AU8006601 A AU 8006601A AU 2001280066 A1 AU2001280066 A1 AU 2001280066A1
Authority
AU
Australia
Prior art keywords
region
radiation
component
imaging system
change
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.)
Abandoned
Application number
AU2001280066A
Inventor
Udi Ben-Ami
Ron Nagar
Benny Pesach
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.)
Intellidx Inc
Original Assignee
Intellidx 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 Intellidx Inc filed Critical Intellidx Inc
Publication of AU2001280066A1 publication Critical patent/AU2001280066A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • 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
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0833—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures
    • A61B8/085—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures for locating body or organic structures, e.g. tumours, calculi, blood vessels, nodules

Abstract

A method for assaying a component of a localized region of interest in a body comprising: illuminating the region with at least one pulse of radiation having a wavelength at which the radiation is absorbed by the component to generate a change in an acoustic property of the region; transmitting ultrasound so that it is incident on the region; measuring at least one effect of the change on the incident ultrasound; using the measured at least one effect to determine an absorption coefficient for the radiation in the region; and using the determined absorption coefficient to determine concentration of the component in the region.
AU2001280066A 2000-08-24 2001-08-09 Photoacoustic assay and imaging system Abandoned AU2001280066A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL13807300A IL138073A0 (en) 2000-08-24 2000-08-24 Photoacoustic assay and imaging system
IL138073 2000-08-24
PCT/IL2001/000740 WO2002015776A1 (en) 2000-08-24 2001-08-09 Photoacoustic assay and imaging system

Publications (1)

Publication Number Publication Date
AU2001280066A1 true AU2001280066A1 (en) 2002-03-04

Family

ID=11074559

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001280066A Abandoned AU2001280066A1 (en) 2000-08-24 2001-08-09 Photoacoustic assay and imaging system

Country Status (8)

Country Link
US (1) US6846288B2 (en)
EP (2) EP1700563A2 (en)
JP (1) JP4104456B2 (en)
AT (1) ATE331465T1 (en)
AU (1) AU2001280066A1 (en)
DE (1) DE60121179T2 (en)
IL (1) IL138073A0 (en)
WO (1) WO2002015776A1 (en)

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