MXPA03004286A - Method , system, and computer program product for measuring hematocrit in blood vessels. - Google Patents

Method , system, and computer program product for measuring hematocrit in blood vessels.

Info

Publication number
MXPA03004286A
MXPA03004286A MXPA03004286A MXPA03004286A MXPA03004286A MX PA03004286 A MXPA03004286 A MX PA03004286A MX PA03004286 A MXPA03004286 A MX PA03004286A MX PA03004286 A MXPA03004286 A MX PA03004286A MX PA03004286 A MXPA03004286 A MX PA03004286A
Authority
MX
Mexico
Prior art keywords
variation
vessel
coefficient
optical density
fractional volume
Prior art date
Application number
MXPA03004286A
Other languages
Spanish (es)
Inventor
Warren Groner
Original Assignee
Cytometrics Llc
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 Cytometrics Llc filed Critical Cytometrics Llc
Publication of MXPA03004286A publication Critical patent/MXPA03004286A/en

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
    • A61B5/14535—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 haematocrit
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/411—Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Immunology (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • External Artificial Organs (AREA)

Abstract

A method, system, and computer program product is provided for analyzing of a microcirculatory system to determine the quantity of various blood components, such as red blood cells. The images are analyzed to identify vessel structure, and determine the variance in measurable parameters, such as the vessel diameter or optical density. In an embodiment of the present invention, the coefficient of variation is determined for the diameter measurements along the vessel and a fractional volume value is calculated for the red blood cells. The fractional volume value is used to estimate the hematocrit (Hct). In another embodiment, the coefficient of variation is determined from a plurality of optical density measurements made at multiple points along the vessel, and the fractional volume value and Hct are calculated from the coefficient of variation of the optical density measurements. In yet another embodiment, the variation in optical density is measured at a single point for a time series of images of a vessel, and a fractional volume and hematocrit are calculated from the coefficient of variation.
MXPA03004286A 2000-11-15 2001-11-15 Method , system, and computer program product for measuring hematocrit in blood vessels. MXPA03004286A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71225800A 2000-11-15 2000-11-15
PCT/US2001/043097 WO2002043561A2 (en) 2000-11-15 2001-11-15 Measuring haematocrit in blood vessels

Publications (1)

Publication Number Publication Date
MXPA03004286A true MXPA03004286A (en) 2004-09-10

Family

ID=24861375

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03004286A MXPA03004286A (en) 2000-11-15 2001-11-15 Method , system, and computer program product for measuring hematocrit in blood vessels.

Country Status (7)

Country Link
EP (1) EP1335665A2 (en)
JP (1) JP2004516052A (en)
CN (1) CN1529565A (en)
AU (1) AU2002241474A1 (en)
CA (1) CA2428866A1 (en)
MX (1) MXPA03004286A (en)
WO (1) WO2002043561A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ546918A (en) 2003-10-03 2009-01-31 Amc Amsterdam System and method for imaging the reflectance of a substrate
US9131861B2 (en) 2004-11-30 2015-09-15 Academisch Medisch Centrum Pulsed lighting imaging systems and methods
CN101212928B (en) * 2005-05-06 2011-02-09 耶德研究和发展有限公司 Imaging and analysis of movement of erythrocytes
JP5901012B2 (en) * 2012-02-13 2016-04-06 国立大学法人 東京医科歯科大学 Blood information measuring method and apparatus
EP4033405B1 (en) * 2012-05-14 2024-06-12 Gauss Surgical, Inc. Methods for managing blood loss of a patient
WO2015151240A1 (en) * 2014-04-02 2015-10-08 株式会社日立製作所 Analysis method and analysis device for detection of abnormal analyte
CN104483237B (en) * 2015-01-06 2017-02-22 陈玉梅 Multi-sample blood pressure product measuring method and device based on transmissivity changing
CN115326685B (en) * 2022-10-13 2023-01-03 深圳安侣医学科技有限公司 Method and system for obtaining blood target cell volume based on microscopic amplification image

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998533A (en) 1986-07-15 1991-03-12 Winkelman James W Apparatus and method for in vivo analysis of red and white blood cell indices
US5598842A (en) * 1993-09-03 1997-02-04 Toa Medical Electronics Co., Ltd. Non-invasive blood analyzer and method using the same
JP3562847B2 (en) * 1994-11-15 2004-09-08 謙 石原 Hemoglobin concentration measuring device
KR100269563B1 (en) 1995-10-23 2000-12-01 사이토메트릭스, 인코오포레이티드 Apparatus for reflected imaging analysis

Also Published As

Publication number Publication date
WO2002043561A2 (en) 2002-06-06
CN1529565A (en) 2004-09-15
JP2004516052A (en) 2004-06-03
WO2002043561A3 (en) 2003-03-06
EP1335665A2 (en) 2003-08-20
WO2002043561A9 (en) 2003-09-04
CA2428866A1 (en) 2002-06-06
AU2002241474A1 (en) 2002-06-11

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