发明名称 |
SUBJECT INFORMATION ACQUISITION APPARATUS AND SUBJECT INFORMATION ACQUISITION METHOD |
摘要 |
<p>A subject information acquisition apparatus includes: an acoustic wave detector (106) which detects an acoustic wave which is generated from a subject by irradiating light and outputs a detection signal; an amplifier (107) which amplifies the detection signal which is output from the acoustic wave detector; a gain control unit which changes a gain of the amplifier as time elapses, according to a gain control table, in order to correct a drop in intensity of the acoustic wave caused by attenuation of fluence inside the subject; and a signal processing unit which obtains information inside the subject based on the signal amplified by the amplifier. Measurement under a plurality of measurement conditions, where at least fluence distribution inside the subject or a position of the acoustic wave detector differs, is possible, and the gain control unit changes the gain control table according to the measurement conditions.</p> |
申请公布号 |
WO2011093069(A1) |
申请公布日期 |
2011.08.04 |
申请号 |
WO2011JP00412 |
申请日期 |
2011.01.26 |
申请人 |
CANON KABUSHIKI KAISHA;SUDO, YOSHIAKI;FUKUTANI, KAZUHIKO;NAKAJIMA, TAKAO;BABA, YOSHITAKA |
发明人 |
SUDO, YOSHIAKI;FUKUTANI, KAZUHIKO;NAKAJIMA, TAKAO;BABA, YOSHITAKA |
分类号 |
A61B5/00;A61B8/08;G01N21/17;G01N29/24 |
主分类号 |
A61B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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