PROBLEM TO BE SOLVED: To enable a user to select an acquisition method of an optical coefficient of a subject used for image reconstruction of PAT.SOLUTION: A subject information acquisition apparatus includes: a holding means for holding a subject an irradiation means for irradiating the subject with light an optoacoustic wave measuring means for measuring optoacoustic waves generated when the subject held by the holding means, is irradiated with the light from the irradiation means an acquisition method selection means for making a user select an acquisition method of an optical coefficient of the subject an optical coefficient acquisition means for acquiring the optical coefficient of the subject by the selected acquisition method and a processing means for generating characteristic information inside the subject by using the optoacoustic waves measured by the optoacoustic wave measuring means and the optical coefficient acquired by the optical coefficient acquisition means.COPYRIGHT: (C)2014,JPO&INPIT【課題】PATの画像再構成に用いる被検体の光学係数の取得方法を、ユーザーが選択できるようにする。【解決手段】被検体を保持する保持手段と、被検体に光を照射する照射手段と、保持手段により保持された被検体に照射手段から光が照射されたときに発生する光音響波を計測する光音響波計測手段と、被検体の光学係数の取得方法をユーザーに選択させる取得方法選択手段と、選択された取得方法により、被検体の光学係数を取得する光学係数取得手段と、光音響波計測手段が計測した光音響波と、光学係数取得手段が取得した光学係数を用いて、被検体内の特性情報を生成する処理手段を有する被検体情報取得装置を用いる。【選択図】図1
