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1. WO2011074102 - MEASUREMENT SYSTEM, AND IMAGE FORMING METHOD AND PROGRAM

Publication Number WO/2011/074102
Publication Date 23.06.2011
International Application No. PCT/JP2009/071062
International Filing Date 17.12.2009
IPC
A61B 8/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
CPC
A61B 5/0095
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0093Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
0095by applying light and detecting acoustic waves, i.e. photoacoustic measurements
A61B 6/56
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
56Details of data transmission or power supply, e.g. use of slip rings
G01N 2021/1706
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
1702with opto-acoustic detection, e.g. for gases or analysing solids
1706in solids
G01N 21/1702
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
1702with opto-acoustic detection, e.g. for gases or analysing solids
Applicants
  • キヤノン株式会社 CANON KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 大石 卓司 OISHI Takuji [JP]/[JP] (UsOnly)
Inventors
  • 大石 卓司 OISHI Takuji
Agents
  • 阿部 琢磨 ABE, Takuma
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MEASUREMENT SYSTEM, AND IMAGE FORMING METHOD AND PROGRAM
(FR) SYSTÈME DE MESURE, ET PROCÉDÉ ET PROGRAMME DE FORMATION D'IMAGE
(JA) 測定システム、画像形成方法及びプログラム
Abstract
(EN)
In photoacoustic imaging, there has been a problem such that an artifact cannot be distinguished from the image (real image) of an existing optical absorber, and the existence of an optical absorber is possibly recognized despite there is nothing in fact. Artifacts caused by the band of an acoustic wave receiver are determined or reduced from the positional relationship among the real image and reflection image of the optical absorber, and each of the sets of voxel data of the artifacts on image data using an acoustic wave reflecting surface provided to a subject.
(FR)
En imagerie photo-acoustique, il existe un problème selon lequel on ne peut pas distinguer un artéfact de l'image (image réelle) d'un absorbeur optique existant, et il est possible de reconnaître l'existence d'un absorbeur optique bien qu'il n'en soit rien en fait. On détermine ou on réduit les artefacts engendrés par la bande d'un récepteur d'ondes acoustiques à partir de la relation de position entre l'image réelle et l'image réfléchie par l'absorbeur optique, et on délivre à un sujet chacun des ensembles de données de voxel des artéfacts sur des données d'image au moyen d'une surface de réflexion des ondes acoustiques.
(JA)
 光音響イメージングにおいて、アーティファクトは実在する光吸収体の像(実像)と区別がつかず、実際には何もないにも関わらず光吸収体があると判断する可能性があった。 被検体に設けられた音響波反射面を用い、画像データ上の光吸収体の実像、反射像、およびアーティファクトの各ボクセルデータの位置関係から、音響波受信器の帯域に起因するアーティファクトを判別又は低減する。
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