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1. WO2013145690 - TOMOGRAPHIC IMAGE GENERATION DEVICE AND CONTROL METHOD

Publication Number WO/2013/145690
Publication Date 03.10.2013
International Application No. PCT/JP2013/002006
International Filing Date 25.03.2013
IPC
A61B 8/12 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
12in body cavities or body tracts, e.g. by using catheters
A61B 1/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
CPC
A61B 5/0035
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0033Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
0035adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography
A61B 5/0066
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0062Arrangements for scanning
0066Optical coherence imaging
A61B 5/0073
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0073by tomography, i.e. reconstruction of 3D images from 2D projections
A61B 5/0084
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0082adapted for particular medical purposes
0084for introduction into the body, e.g. by catheters
A61B 8/0891
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
08Detecting organic movements or changes, e.g. tumours, cysts, swellings
0891for diagnosis of blood vessels
A61B 8/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
12in body cavities or body tracts, e.g. by using catheters
Applicants
  • テルモ株式会社 TERUMO KABUSHIKI KAISHA [JP]/[JP]
Inventors
  • 伊藤 エマ ITOH, Ema
  • 森 功 MORI, Isao
Agents
  • 大塚 康徳 OHTSUKA, Yasunori
Priority Data
2012-06914326.03.2012JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TOMOGRAPHIC IMAGE GENERATION DEVICE AND CONTROL METHOD
(FR) DISPOSITIF DE GÉNÉRATION D'IMAGES TOMOGRAPHIQUES ET PROCÉDÉ DE COMMANDE
(JA) 断層画像生成装置および制御方法
Abstract
(EN)
This tomographic image generation device, which generates a tomographic image using a transmission/reception unit in which disposed are an ultrasonic wave transmission/reception unit that transmits/receives ultrasonic waves and an optical transmission/reception unit that transmits/receives light, samples an interference light signal and an ultrasonic wave echo signal acquired by driving the ultrasonic wave transmission/reception unit and the optical transmission/reception unit while rotating the transmission/reception unit, thus acquiring interference light data and ultrasonic wave data, which are to be used to generate one line of a tomographic image, at each rotational position of the transmission/reception unit. Also, the tomographic image generation device controls the operation timing of the acquisition means in a manner so that there is no overlap between the sampling period for sampling one line of the interference light signal and a predetermined period after driving the ultrasonic wave transmission/reception unit to generate an ultrasonic wave.
(FR)
Le dispositif de génération d'images tomographiques de la présente invention, qui génère une image tomographique au moyen d'une unité de transmission/réception dans laquelle sont disposées une unité de transmission/réception d'ondes ultrasonores, qui transmet/reçoit des ondes ultrasonores, et d'une unité de transmission/réception optique qui transmet/reçoit de la lumière, échantillonne un signal lumineux d'interférence et un signal constitué d'un écho d'onde ultrasonore acquis par actionnement de l'unité de transmission/réception d'ondes ultrasonores et de l'unité de transmission/réception optique lors de la rotation de l'unité de transmission/réception, ce qui permet l'acquisition de données lumineuses d'interférence et de données concernant les ondes ultrasonores, qui sont destinées à être utilisées pour générer une ligne d'une image tomographique, pour chaque position rotationnelle de l'unité de transmission/réception. Ledit dispositif de génération d'images tomographiques permet également de réguler le moment d'actionnement du moyen d'acquisition de façon à ce qu'il n'y ait pas de chevauchement entre la période d'échantillonnage correspondant à l'échantillonnage d'une ligne du signal lumineux d'interférence et une période prédéterminée après actionnement de l'unité de transmission/réception des ondes ultrasonores afin de générer une onde ultrasonore.
(JA)
 超音波の送受信を行う超音波送受信部と、光の送受信を行う光送受信部とが配置された送受信部を用いて断層画像を生成する断層画像生成装置は、送受信部を回転させながら超音波送受信部と光送受信部を駆動して得られる超音波エコー信号と干渉光信号をそれぞれサンプリングして、送受信部の各回転位置における、断層画像の1ラインを生成するのに用いるための超音波データと干渉光データを取得する。そして、断層画像生成装置は、干渉光信号の1ライン分をサンプリングするサンプリング期間と、超音波送受信部を超音波の発振のために駆動してからの所定期間とが重複しないように、前記取得手段の動作タイミングを制御する。
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