PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus, an interpolation processing unit, and an interpolation processing method capable of simultaneously and collectively acquiring received data pieces required for interpolation, without making the sampling interval larger.SOLUTION: An ultrasonic diagnostic apparatus comprises: a plurality of transducers for transmitting an ultrasonic wave and receiving a reflected wave a memory unit for storing received data after splitting the received data into data pieces of the number required for calculating interpolation data to form a reception beam on the basis of a plurality of chronologically continuing received data pieces a delay calculation unit for calculating a readout position at which required received data pieces are read from the memory unit on the basis of the delay time corresponding to the orientation direction and focal positions of the reception beam a data interpolation unit comprising an interpolation filter for weight-adding the plurality of received data pieces obtained from the memory unit to calculate the interpolation data an image generation unit for generating an ultrasonic image on the basis of the reception beam formed by adding the interpolation data calculated at each of the focal positions and a display unit.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】サンプリング間隔を大きくせず、補間に必要な受信データを一括同時に取得可能な超音波診断装置、補間処理ユニットおよび補間処理方法を提供する。【解決手段】超音波診断装置は、超音波を送信し、反射波を受信する複数の振動子と、受信ビームの形成に必要な補間データを、時系列に連続する複数の受信データに基づいて算出するために、前記受信データを前記補間データの算出に必要な受信データ数に分割記憶するメモリと、前記受信ビームの指向方向、焦点位置に応じた遅延時間に基づいて前記メモリから必要な前記受信データ読出位置を算出する遅延計算部と、前記メモリから取得した複数の前記受信データを重み付加算して前記補間データを算出する補間フィルタを備えたデータ補間部と、前記各焦点位置において算出された前記補間データを加算して形成された受信ビームに基づいて超音波画像を生成する画像生成部、表示部と、を備える。【選択図】図2
