Sending and receiving doing the ultra wave to suffering inspection internal, the ultrasonic diagnosis which has the means which the dynamic picture image of the said suffering inspection body image pickup are doneIt features that the graduation means which administer data smoothing to the graphics data of each frame in the device, concerning each frame of the aforementioned dynamic picture image, size of the speckle which appears on each frame and/or the speckle measurement means which measure form and, the said according to size of the speckle which is measured and/or form are had.被検体内に超音波を送受信して該被検体の動画像を撮像する手段を備えた超音波診断装置において、前記動画像の各フレームについて、各フレーム上に現れるスペックルの大きさ及び/あるいは形状を計測するスペックル計測手段と、該計測されたスペックルの大きさ及び/あるいは形状に応じて各フレームの画像データに平滑化処理を施す平滑化手段を備えたことを特徴としている。
