With deep part high sensitivity, at the same time, high resolution the device and the medicine which do imaging are offered.Point to the energy tonnage which is irradiated to the suffering inspection section of the suffering inspection body which prescribes the reagent for optical sound which features that the sound signaling is caused by causing the phase change to the vapor phase from the solid phase or the liquid phase with optical lighting, largely the image which generates the imaging image of the suffering inspection section on the basis of the sound signaling where it irradiates optically, it detects the sound signaling which it occurs in the suffering inspection section, with the lighting of light detects, the optical acoustic measurement equipment optical acoustic imaging device which is formed.深部で高感度、かつ、高分解能なイメージングを行う装置および薬剤を提供する。光照射により固相あるいは液相から気相への相変化を生じることにより音響信号を生じることを特徴とする光音響用試薬を投与した被検体の被検部に、照射するエネルギー量を大きくさせながら光照射を行い、光の照射により被検部に生じる音響信号を検出し、検出した音響信号に基づいて、被検部のイメージング画像を生成する画像構成する光音響測定装置光音響イメージング装置。
