PROBLEM TO BE SOLVED: To provide a subject information acquisition device that can exactly imaging a subject structure even when a probe moves.SOLUTION: When the subject information acquisition device drives acoustic wave generation means multiple times while having a time interval between them, the subject information acquisition device detects a position of an acoustic wave reception element multiple times during the time interval and acquires subject information based on an electrical signal that is based on an acoustic wave received by the acoustic wave reception element and position results detected multiple times during the time interval.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】プローブが移動する場合でも、被検体構造を正確に画像化できる被検体情報取得装置を提供。【解決手段】音響波発生手段を時間間隔を空けて複数回駆動する際に、時間間隔中に音響波受信素子の位置を複数回検出し、音響波受信素子が受信した音響波に基づく電気信号と、時間間隔中に検出した複数回の位置検出結果とに基づいて被検体の情報を取得する。【選択図】図1
