Two dimensional distribution of the arithmetic logical unit and the operational result which calculate the degree of blood flux which is while organism organizing from time change of the output signal of each pixel to which the picture taking section and the picture memory section which remembers the plural pictures and are remembered the plural pictures which continually take in the plural pictures at predetermined time of one heart beat or more on the basis of the signal from light absorbent type and the light absorbent section which possess the light absorbent section which consists of the laser optical illuminating system which irradiates laser light to the observation territory of organism organization and the many pixel which detects the reflected light from the observation territory of organism organization correspond the bloodIn the blood degree of flux picture conversion device which consists of the indicatory department which it indicates as the flow map, being the device which adds the performance in order to analyze the blood style maps which are obtained, from the plural blood style map data of one heart beat or more, it separates the blood style inside the surface blood vessel of the observation territory of organism organization and the background blood style around that into the arithmetic logical unit, the blood style picture diagnostic devices where the function which the respective blood style distinguishes on the blood style maps of the indicatory department and is indicated is added. The new blood style picture diagnostic device which adds new blood style picture diagnostic performance to the former device, is offered.生体組織の観察領域にレーザ光を照射するレーザ光照射系と、生体組織の観察領域からの反射光を検出する多数の画素からなる受光部を有する受光系と、受光部からの信号に基づき一心拍以上の所定時間で連続的に複数の画像を取り込む画像取込部と、複数の画像を記憶する画像記憶部と、記憶された複数画像の対応する各画素の出力信号の時間的変化から生体組織内の血流速度を演算する演算部と、演算結果の二次元分布を血流マップとして表示する表示部からなる血流速度画像化装置に、得られた血流マップを解析するための機能を付加した装置であって、演算部に、一心拍以上の複数の血流マップデータから、生体組織の観察領域の表層血管内の血流と、その周囲の背景血流を分離し、表示部の血流マップ上にそれぞれの血流が区別し
