| 主权项 |
1. A photoacoustic apparatus comprising:
a light source; a plurality of receiving elements which receive photoacoustic waves caused by irradiation of light from the light source to a subject and output reception signals; a base material which supports the plurality of receiving elements such that the directional axes of the plurality of receiving elements are gathered at a point; a control unit which determines a position of the base material at each of a plurality of time points when light from the light source is irradiated to the subject; a moving mechanism which moves the base material to the position of the base material determined by the control unit; a signal data acquisition unit which generates and stores reception signal data based on the reception signal output from the plurality of receiving elements; a setting unit which sets a region of interest; and an information acquisition unit which acquires subject information in the region of interest based on the reception signal data stored in the signal data acquisition unit, wherein the signal data acquisition unit generates and stores the reception signal data by reducing a data amount of the reception signals output from the plurality of receiving elements if a region where the directional axes of the plurality of receiving elements are gathered at a point is not included in the region of interest. |
