PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus which can more correctly identify the tip position of a puncture needle.SOLUTION: An ultrasonic diagnostic apparatus comprises: a transmission and reception part which transmits an ultrasonic wave to a subject and receives a reflection wave of the ultrasonic wave a processing part which processes received reflection wave data to generate an image relevant to a two-dimensional structure including the depth direction of the subject a display control part which displays the generated image relevant to the two-dimensional structure on a display part a position acquisition part which acquires the tip estimation position of a puncture needle implanted into the subject and a transmission control part which adjusts at least one of the focal distance, opening size and acoustic ray density of the ultrasonic wave in accordance with the acquired tip estimation position to make the transmission and reception part perform the transmission operation.COPYRIGHT: (C)2016,JPO&INPIT【課題】穿刺針の先端位置をより正確に同定可能な超音波診断装置を提供する。【解決手段】被検体に対して超音波を送信し、この超音波の反射波を受信する送受信部と、受信された反射波データを処理して被検体の深度方向を含む二次元構造に係る画像を生成する処理部と、生成された二次元構造に係る画像を表示部に表示させる表示制御部と、被検体に対して刺入される穿刺針の先端推定位置を取得する位置取得部と、取得された先端推定位置に応じて超音波の焦点距離、開口サイズ及び音線密度のうち少なくとも一つを調整して送受信部による送信動作を行わせる送信制御部と、を備える。【選択図】図7
