SOLUTION: This device is a blood flow analyzing apparatus for carrying out a numerical fluid analysis of the blood flow of a blood vessel part of a subject, comprising an input part for receiving a medical image of a patient by a computer, A vessel of interest of interest to extract a region of interest of a blood vessel to be analyzed a blood vessel analyzing section of interest which calculates a diameter of a blood vessel at an entrance and an exit of the vessel part of interest A boundary condition calculation unit that calculates a blood flow rate at the inlet and the outlet, a blood flow attribute including a pressure field and a velocity field in the region of interest of the vessel by numerical fluid analysis using the found blood flow rate of the inlet and outlet A blood flow index calculation unit that calculates a blood flow characteristic in the blood vessel region of interest as a predetermined index based on an attribute of the blood flow, a t that outputs and displays the blood flow index And a part.(FIG.【解決手段】 この装置は、関心血管部位の血流の数値流体解析を実行する血流解析装置であって、コンピュータが患者の医用画像を受け取る入力部と、コンピュータが前記医用画像を解析し、解析対象の関心血管部位を抽出する関心血管抽出部と、コンピュータが当該関心血管部位の入口と出口における血管径を求める関心血管解析部と、前記入口及び出口の血管径に基づき、当該血管部位の前記入口と前記出口における血流量を求める境界条件計算部と、前記求められた入口及び出口の血流量を用いた数値流体解析により前記関心血管部位内の圧力場、速度場を含む血流属性を求める血流計算部と、前記血流の属性に基づき、前記関心血管部位内の血流特性を所定の指標として算出する血流指標算出部と、前記血流指標を出力表示する表示部とを有する。【選択図】 図2
