PROBLEM TO BE SOLVED: To acquire an accurate value based on a state of a subject during photographing, as an optical coefficient of the subject used for image reconstruction of PAT.SOLUTION: There is disclosed a photoacoustic wave diagnosing apparatus including a holding unit that presses and holds an object during imaging a photoacoustic measuring unit that measures information on the photoacoustic wave of the object pressed by the holding unit an optical coefficient acquiring unit that acquires an optical coefficient based on the object in the pressed state and a reconstruction unit that performs image reconstruction based on the information on a photoacoustic wave signal measured by the photoacoustic measuring unit and the optical coefficient acquired by the optical coefficient acquiring unit.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として、撮影時の被検体の状態に基づく精度の良い値を取得する。【解決手段】撮影時に被検体を圧迫して保持する保持手段と、前記保持手段により圧迫された状態の被検体の光音響波に関する情報を測定する光音響波測定手段と該圧迫状態の被検体に基づく光学係数を取得する光学係数取得手段と前記光音響波測定手段で測定した光音響波信号に関する情報と、前記光学係数取得手段で取得した光学係数に基づいて画像再構成を行う再構成手段を有する光音響波診断装置を用いる。【選択図】図1
