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WO2007046206A1 - Procédé de stabilisation de ligne de référence utilisant la différence de longueur d’onde pour biophotométrie avec radiation proche de l’infrarouge - Google Patents

Procédé de stabilisation de ligne de référence utilisant la différence de longueur d’onde pour biophotométrie avec radiation proche de l’infrarouge Download PDF

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Publication number
WO2007046206A1
WO2007046206A1 PCT/JP2006/318487 JP2006318487W WO2007046206A1 WO 2007046206 A1 WO2007046206 A1 WO 2007046206A1 JP 2006318487 W JP2006318487 W JP 2006318487W WO 2007046206 A1 WO2007046206 A1 WO 2007046206A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
wavelength
value
signal
measurement
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.)
Ceased
Application number
PCT/JP2006/318487
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English (en)
Japanese (ja)
Inventor
Toru Yamada
Shinji Umeyama
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
National Institute of Advanced Industrial Science and Technology AIST
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 National Institute of Advanced Industrial Science and Technology AIST filed Critical National Institute of Advanced Industrial Science and Technology AIST
Publication of WO2007046206A1 publication Critical patent/WO2007046206A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

Definitions

  • Non-Patent Document 2 Obrig H. et al., Neouroimage 12 (6): 623-639 (2000)
  • the hat symbol may be represented as “X hat”, which means that a hat symbol is placed on the letter X.
  • FIG. 1 is a diagram showing an optical model for estimating each hemoglobin change amount in cerebral blood flow by near-infrared spectroscopy measurement.

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Mathematical Physics (AREA)
  • Biophysics (AREA)
  • Theoretical Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Procédé et dispositif permettant d’obtenir une valeur de mesure précise en supprimant la variation de ligne de référence dans la biophotométrie avec radiation proche de l’infrarouge. La biophotométrie permet de traiter un signal optique détecté par un biophotomètre comprenant une section d’application de lumière permettant d’appliquer une lumière proche de l’infrarouge d’une pluralité de longueurs d’onde à une pluralité de positions d’application d’un sujet, une section de détection de lumière permettant de détecter la lumière passant à travers le sujet ou bien dispersée ou réfléchie à l’intérieur du sujet, et une section de traitement de données permettant de traiter des données en utilisant le signal optique détecté par la section de détection de lumière. Le procédé est caractérisé en ce que le signal reçu par la section de traitement de données est traité par la technique de différence de longueur d’onde pour retirer la composante de signal indépendante de la longueur d’onde, le signal dont on retire le signal indépendant de la longueur d'onde est traité à l’aide d’un filtre de Wiener pour supprimer la composante d’erreur dépendante de la longueur d’onde et le bruit, et ainsi on retire la variation de ligne de référence de la valeur de mesure.
PCT/JP2006/318487 2005-10-18 2006-09-19 Procédé de stabilisation de ligne de référence utilisant la différence de longueur d’onde pour biophotométrie avec radiation proche de l’infrarouge Ceased WO2007046206A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005302828A JP4696300B2 (ja) 2005-10-18 2005-10-18 近赤外光を用いた生体光計測法のための波長差分を用いたベースライン安定化方法
JP2005-302828 2005-10-18

Publications (1)

Publication Number Publication Date
WO2007046206A1 true WO2007046206A1 (fr) 2007-04-26

Family

ID=37962305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/318487 Ceased WO2007046206A1 (fr) 2005-10-18 2006-09-19 Procédé de stabilisation de ligne de référence utilisant la différence de longueur d’onde pour biophotométrie avec radiation proche de l’infrarouge

Country Status (2)

Country Link
JP (1) JP4696300B2 (fr)
WO (1) WO2007046206A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5126481B2 (ja) 2007-04-20 2013-01-23 スズキ株式会社 分割式シートバックの開き防止構造
JP5182856B2 (ja) * 2007-12-05 2013-04-17 独立行政法人産業技術総合研究所 光計測装置
JP5295584B2 (ja) * 2008-02-14 2013-09-18 国立大学法人 筑波大学 血流計測装置及び血流計測装置を用いた脳活動計測装置
US9125626B2 (en) 2009-01-29 2015-09-08 Shimadzu Corporation Light measurement device
JP6969506B2 (ja) * 2018-06-20 2021-11-24 日本電信電話株式会社 光周波数多重型コヒーレントｏｔｄｒ、試験方法、信号処理装置、及びプログラム
KR102214686B1 (ko) * 2018-12-27 2021-02-09 원광대학교산학협력단 유한 상태 머신을 기반으로 정확하고 일관된 심박수를 추정하는 방법 및 이를 위한 장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004528913A (ja) * 2001-05-15 2004-09-24 マシモ・コーポレイション パルス酸素測定データ信頼度インジケータ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3532368B2 (ja) * 1996-12-10 2004-05-31 富士写真フイルム株式会社 内視鏡
JP4076003B2 (ja) * 1999-02-19 2008-04-16 株式会社日立製作所 生体光計測装置
US7376456B2 (en) * 2002-08-05 2008-05-20 Infraredx, Inc. Near-infrared spectroscopic analysis of blood vessel walls

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004528913A (ja) * 2001-05-15 2004-09-24 マシモ・コーポレイション パルス酸素測定データ信頼度インジケータ

Also Published As

Publication number Publication date
JP4696300B2 (ja) 2011-06-08
JP2007111101A (ja) 2007-05-10

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