WO2009030934A3 - Imaging of local blood oxygenation - Google Patents
Imaging of local blood oxygenation Download PDFInfo
- Publication number
- WO2009030934A3 WO2009030934A3 PCT/GB2008/003042 GB2008003042W WO2009030934A3 WO 2009030934 A3 WO2009030934 A3 WO 2009030934A3 GB 2008003042 W GB2008003042 W GB 2008003042W WO 2009030934 A3 WO2009030934 A3 WO 2009030934A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- images
- imaging
- order
- wavelengths
- pulsing
- Prior art date
Links
- 239000008280 blood Substances 0.000 title abstract 3
- 210000004369 blood Anatomy 0.000 title abstract 3
- 238000003384 imaging method Methods 0.000 title 1
- 238000006213 oxygenation reaction Methods 0.000 title 1
- 230000005284 excitation Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000017531 blood circulation Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
-
- 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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0073—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by tomography, i.e. reconstruction of 3D images from 2D projections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
-
- 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
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring 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
- A61B5/445—Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
- A61B2562/0242—Special features of optical sensors or probes classified in A61B5/00 for varying or adjusting the optical path length in the tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Public Health (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physiology (AREA)
- Hematology (AREA)
- Cardiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Dermatology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Use of photoplethysmographic processes in order to determine blood pulsing is known. By providing illumination over a range of excitation frequencies or wavelengths and using a multi time gating technique with regard to returned light, images are created which provide a spectral depth due to the varying scatter and absorption effects at the different excitation wavelengths. These images can be consolidated in order to provide a substantially real time view of pulsing action dependent upon blood oxygen saturation within the blood circulation system.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0717365.1 | 2007-09-07 | ||
GB0717365A GB0717365D0 (en) | 2007-09-07 | 2007-09-07 | Imaging |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009030934A2 WO2009030934A2 (en) | 2009-03-12 |
WO2009030934A3 true WO2009030934A3 (en) | 2009-08-06 |
Family
ID=38640361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2008/003042 WO2009030934A2 (en) | 2007-09-07 | 2008-09-08 | Imaging of local blood oxygenation |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB0717365D0 (en) |
WO (1) | WO2009030934A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102834127B (en) * | 2010-03-31 | 2016-08-03 | 泰尔茂株式会社 | Integrated circuit and employ the medical apparatus and instruments of this integrated circuit |
TWI504380B (en) * | 2012-11-08 | 2015-10-21 | Univ Nat Chiao Tung | Portable 2-dimension oximeter image device |
GB2519335A (en) | 2013-10-17 | 2015-04-22 | Univ Loughborough | Opto-physiological sensor and method of design |
EP3125745A1 (en) * | 2014-03-31 | 2017-02-08 | Koninklijke Philips N.V. | Device, system and method for tumor detection and/or monitoring |
WO2016050486A1 (en) * | 2014-10-02 | 2016-04-07 | Koninklijke Philips N.V. | Optical vital signs sensor. |
WO2017025775A1 (en) | 2015-08-11 | 2017-02-16 | Latvijas Universitate | Device for adaptive photoplethysmography imaging |
TWI766774B (en) * | 2021-07-26 | 2022-06-01 | 神煜電子股份有限公司 | Heart rate and blood oxygen monitoring device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004083944A2 (en) * | 2003-03-18 | 2004-09-30 | The General Hospital Corporation | Polarized light devices and methods |
WO2006100685A2 (en) * | 2005-03-25 | 2006-09-28 | Cnoga Holdings Ltd | Optical sensor device and image processing unit for measuring chemical concentrations, chemical saturations and biophysical parameters |
US20070016079A1 (en) * | 2005-04-04 | 2007-01-18 | Freeman Jenny E | Hyperspectral imaging in diabetes and peripheral vascular disease |
-
2007
- 2007-09-07 GB GB0717365A patent/GB0717365D0/en not_active Ceased
-
2008
- 2008-09-08 WO PCT/GB2008/003042 patent/WO2009030934A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004083944A2 (en) * | 2003-03-18 | 2004-09-30 | The General Hospital Corporation | Polarized light devices and methods |
WO2006100685A2 (en) * | 2005-03-25 | 2006-09-28 | Cnoga Holdings Ltd | Optical sensor device and image processing unit for measuring chemical concentrations, chemical saturations and biophysical parameters |
US20070016079A1 (en) * | 2005-04-04 | 2007-01-18 | Freeman Jenny E | Hyperspectral imaging in diabetes and peripheral vascular disease |
Non-Patent Citations (3)
Title |
---|
HU S.: "Proceedings of International Biomedical Engineering Workshop UK ? China Science Network Electro-Optical Sensors for Physiological Measurements and Applications", INTERNATIONAL BIOMEDICAL ENGINEERING WORKSHOP UK - CHINA SCIENCE NETWORK ELECTRO-OPTICAL SENSORS FOR PHYSIOLOGICAL MEASUREMENTS AND ELECTRO-OPTICAL SENSORS FOR PHYSIOLOGICAL MEASUREMENTS AND APPLICATIONS 8-9 JUNE 2006, 21 April 2007 (2007-04-21), XP002526641, Retrieved from the Internet <URL:http://web.archive.org/web/20070421115802/http://www.lboro.ac.uk/departments/el/research/photonics/presentations/proceedings+of+International+Biomedical+Engineering+Workshop8_9_06_2006.pdf> * |
JIA ZHENG; SIJUNG HU; AZORIN-PERIS V; ECHIADIS A; CHOULIARAS V; SUMMERS R: "Remote simultaneous dual wavelength imaging photoplethysmography: a further step towards 3-D mapping of skin blood microcirculation", PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, vol. 6850, 19 January 2008 (2008-01-19), pages 68500S1 - 68500S8, XP002526642 * |
SIJUNG HU: "Introduction of Photonics Engineering and Health Technology Research Group", INTERNATIONAL BIOMEDICAL ENGINEERING WORKSHOP UK - CHINA SCIENCE NETWORK ELECTRO-OPTICAL SENSORS FOR PHYSIOLOGICAL MEASUREMENTS AND ELECTRO-OPTICAL SENSORS FOR PHYSIOLOGICAL MEASUREMENTS AND APPLICATIONS 8-9 JUNE 2006, 22 July 2007 (2007-07-22), XP002526640, Retrieved from the Internet <URL:http://web.archive.org/web/20070722165932/www.lboro.ac.uk/departments/el/research/photonics/presentations/Dr+S+Hu_LU_OxiMap.pdf> * |
Also Published As
Publication number | Publication date |
---|---|
WO2009030934A2 (en) | 2009-03-12 |
GB0717365D0 (en) | 2007-10-17 |
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