SUBJECT INFORMATION ACQUISITION DEVICE, AND CONTROL METHOD FOR SUBJECT INFORMATION ACQUISITION DEVICE

• Main Author: OISHI TAKUJI
• Format: Patent
• Language: English; Japanese
• Published: 17.11.2014
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To provide a subject information acquisition device capable of precisely detecting artifact resulting from multiple reflection of an acoustic wave.SOLUTION: A subject information acquisition device acquires information of the inside of a subject 3 by receiving an acoustic wave from the inside of the subject 3 through a layer 4 having an acoustic impedance different from that of the subject and analyzing the acoustic wave, and includes: an acoustic wave probe 5 that receives the acoustic wave and converts it into an electric signal; whole image generation means 6 that generates a whole image which is an image showing the information of the inside of the subject 3, on the basis of the converted electric signal; partial image generation means 7 that extracts a partial image which is a part of the whole image; and similar image retrieval means 8 that retrieves an area similar to the partial image from the whole image. 【課題】音響波の多重反射に起因するアーティファクトを精度よく検出できる被検体情報取得装置を提供する。【解決手段】被検体内３から到来する音響波を、前記被検体と異なる音響インピーダンスを持つ層４を介して受信し、解析することで、前記被検体内３の情報を取得する被検体情報取得装置であって、音響波を受信し、電気信号に変換する音響波探触子５と、前記変換された電気信号に基づいて、前記被検体内３の情報を表す画像である全体画像を生成する全体画像生成手段６と、前記全体画像の一部である部分画像を抽出する部分画像生成手段７と、前記全体画像から前記部分画像と類似する領域を探索する類似像探索手段８と、を有することを特徴とする。【選択図】図２