PROBLEM TO BE SOLVED: To provide a system for analyzing a blood flow at a target vascular site by simulation.SOLUTION: A system includes: a fluid analysis part 12 in which a computer gives a calculation condition including a boundary condition on a blood flow to three-dimensional shape data on a target vascular site, and obtains a state quantity of the blood flow at each position of a lumen at the target vascular site by calculation； a three-dimensional shape correction part in which the computer corrects the three-dimensional shape data by simulating a surgical treatment method, and outputs the corrected three-dimensional shape data； and a comparative display part in which the calculation of the state quantity by the fluid analysis part is caused to be executed again based on the corrected three-dimensional shape data, and the calculation result after the shape data is corrected is displayed so as to be compared with the calculation result before the correction.SELECTED DRAWING: Figure 1【課題】対象血管部位の血流をシミュレーションにより分析するシステムを提供する。【解決手段】コンピュータが対象血管部位の三次元形状データに血流に関する境界条件を含む演算条件を与え、対象血管部位の内腔の各位置における血流の状態量を演算によって求める流体解析部１２と、コンピュータが、三次元形状データを外科治療法をシュミレーションすることにより修正し修正後の三次元形状データを出力する三次元形状修正部と、修正後の三次元形状データに基づいて流体解析部による状態量の演算を再実行させ、形状データ修正後の演算結果を修正前の演算結果と比較可能に表示する比較表示部とを有する。【選択図】図１
