Title:
PHOTOACOUSTIC APPARATUS, METHOD OF CONTROLLING PHOTOACOUSTIC APPARATUS, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2015/162899
Kind Code:
A1
Abstract:
A photoacoustic apparatus includes a light source configured to generate a plurality of light beams having wavelengths different from each other, a conversion element configured to receive a photoacoustic wave that is generated in a subject in response to being illuminated with the respective light beams having wavelengths different from each other and output a signal for each wavelength, an information acquisition unit configured to acquire information in terms of a concentration of a substance existing in the subject by using the signal for each wavelength, and a specifying unit configured to specify a coefficient and instruct the information acquisition unit to use the specified coefficient in acquiring the information in terms of the concentration, wherein the specifying unit specifies, as the coefficient, a value representable by a formula including an amount of light having each wavelength, and wherein the information acquisition unit acquires information in terms of the concentration by using the coefficient specified by the specifying unit and the signal for each wavelength.
More Like This:
Inventors:
NAKAJIMA TAKAO (JP)
Application Number:
PCT/JP2015/002141
Publication Date:
October 29, 2015
Filing Date:
April 20, 2015
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
A61B5/145; A61B5/00
Domestic Patent References:
| WO2013188707A1 | 2013-12-19 |
Foreign References:
| US20140049770A1 | 2014-02-20 | |||
| US20130245406A1 | 2013-09-19 | |||
| US20060264717A1 | 2006-11-23 | |||
| US20130245418A1 | 2013-09-19 | |||
| US20130281842A1 | 2013-10-24 | |||
| JP2010088627A | 2010-04-22 | |||
| US5713356A | 1998-02-03 |
Other References:
JUN XIA ET AL: "Calibration-free quantification of absolute oxygen saturation based on the dynamics of photoacoustic signals", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, US, vol. 38, no. 15, 1 August 2013 (2013-08-01), pages 2800 - 2803, XP001583751, ISSN: 0146-9592, DOI: HTTP://DX.DOI.ORG/10.1364/OL.38.002800
Attorney, Agent or Firm:
ABE, Takuma et al. (30-2Shimomaruko 3-chome, Ohta-k, Tokyo 01, JP)
Download PDF:
Previous Patent: MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD
Next Patent: CAPACITOR AND METHOD FOR MANUFACTURING SAME
Next Patent: CAPACITOR AND METHOD FOR MANUFACTURING SAME