[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Ewerlöf et al., 2015 - Google Patents

Estimating skin blood saturation by selecting a subset of hyperspectral imaging data

Ewerlöf et al., 2015

View PDF
Document ID
12485390212958725866
Author
Ewerlöf M
Salerud E
Strömberg T
Larsson M
Publication year
Publication venue
Imaging, manipulation, and analysis of biomolecules, cells, and tissues XIII

External Links

Snippet

Skin blood haemoglobin saturation (𝑠 b) can be estimated with hyperspectral imaging using the wavelength (λ) range of 450-700 nm where haemoglobin absorption displays distinct spectral characteristics. Depending on the image size and photon transport algorithm …
Continue reading at www.diva-portal.org (PDF) (other versions)

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Detecting, measuring or recording 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
    • A61B5/14551—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 for measuring blood gases
    • 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 infra-red, visible or ultra-violet 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/444—Evaluating skin marks, e.g. mole, nevi, tumour, scar
    • 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 infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering
    • G01N2021/653—Coherent methods [CARS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/0059—Detecting, measuring or recording for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062—Arrangements for scanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Detecting, measuring or recording 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F19/00—Digital computing or data processing equipment or methods, specially adapted for specific applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions

Similar Documents

Publication Publication Date Title
Aasted et al. Anatomical guidance for functional near-infrared spectroscopy: AtlasViewer tutorial
Spigulis et al. Smartphone snapshot mapping of skin chromophores under triple-wavelength laser illumination
Nishidate et al. Estimation of melanin and hemoglobin using spectral reflectance images reconstructed from a digital RGB image by the Wiener estimation method
Bolton et al. Portable, low-cost multispectral imaging system: design, development, validation, and utilization
Angelo et al. Ultrafast optical property map generation using lookup tables
Ewerlöf et al. Spatial and temporal skin blood volume and saturation estimation using a multispectral snapshot imaging camera
Okui et al. Wavelength dependence of crosstalk in dual-wavelength measurement of oxy-and deoxy-hemoglobin
Liebert et al. Determination of absorption changes from moments of distributions of times of flight of photons: optimization of measurement conditions for a two-layered tissue model
Farzam et al. Multidistance diffuse correlation spectroscopy for simultaneous estimation of blood flow index and optical properties
Välisuo et al. New closed-form approximation for skin chromophore mapping
Naglič et al. Applicability of diffusion approximation in analysis of diffuse reflectance spectra from healthy human skin
Hennessy et al. Impact of one-layer assumption on diffuse reflectance spectroscopy of skin
Fredriksson et al. Model-based quantitative laser Doppler flowmetry in skin
Jelzow et al. Separation of superficial and cerebral hemodynamics using a single distance time-domain NIRS measurement
Niu et al. Comprehensive investigation of three-dimensional diffuse optical tomography with depth compensation algorithm
Ewerlöf et al. Estimating skin blood saturation by selecting a subset of hyperspectral imaging data
Pilvar et al. Shortwave infrared spatial frequency domain imaging for non-invasive measurement of tissue and blood optical properties
Ewerlöf et al. Multispectral snapshot imaging of skin microcirculatory hemoglobin oxygen saturation using artificial neural networks trained on in vivo data
Fan et al. A smartphone-based biosensor for non-invasive monitoring of total hemoglobin concentration in humans with high accuracy
Caredda et al. Intraoperative functional and metabolic brain mapping using hyperspectral imaging
Umeyama et al. Detection of an unstable and/or a weak probe contact in a multichannel functional near-infrared spectroscopy measurement
Verdel et al. In vivo characterization of structural and optical properties of human skin by combined photothermal radiometry and diffuse reflectance spectroscopy
Naglič et al. Combining the diffusion approximation and Monte Carlo modeling in analysis of diffuse reflectance spectra from human skin
Verdel et al. A machine-learning model for quantitative characterization of human skin using photothermal radiometry and diffuse reflectance spectroscopy
Milanič et al. Hyperspectral imaging for detection of cholesterol in human skin