PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus configured to display an easily viewable diagnostic image having an increased luminance at both of an adjacent part of a rising edge and an adjacent part of a falling edge of a portion indicated brightly in a tissue image.SOLUTION: The ultrasonic diagnostic apparatus transmits an ultrasonic beam into a subject, and brightly displays a tomogram of tissue in an ultrasonic wave transmitting/receiving region in the subject based on a reception signal of a reflected ultrasonic wave reflected in and returned from the subject. The ultrasonic diagnostic apparatus has edge enhancement signal generating unit (36, 38) including: a rising edge enhancement-processing unit 361 for amplifying a signal part immediately after the rising edge of the reception signal and generating a rising edge enhancement signal having an enhanced rising edge and a falling edge enhancement-processing unit 362 for amplifying a signal part immediately before the falling edge of the reception signal and generating a falling edge enhancement signal having an enhanced falling edge.COPYRIGHT: (C)2012,JPO&INPIT【課題】組織の画像に明るく示される部分のうち、立上りエッジの隣接部分および立下りエッジの隣接部分の双方の輝度が増強された見易い診断像が表示される超音波診断装置を提供する。【解決手段】被検体内へ超音波ビームを送波し、被検体内で反射して戻ってきた反射超音波の受信信号に基づいて被検体内の超音波送受信域内の組織の断層像を輝度表示する超音波診断装置において、受信信号の立上りエッジ直後の信号部分を増幅することにより立上りエッジが強調された立上りエッジ強調信号を生成する立上りエッジ強調処理部361と、受信信号の立下りエッジ直前の信号部分を増幅することにより立下りエッジが強調された立下りエッジ強調信号を生成する立下りエッジ強調処理部362とを含むエッジ強調信号生成部(36,38)を有することを特徴とする。【選択図】 図3
