Blood-flow analysis device for blood-flow simulation, method therefor, and computer software program

A blood flow analysis apparatus for executing a computational fluid analysis on a blood flow in a blood vessel region to be analyzed, and displaying the analysis results, comprising:

• a vascular diameter calculation section for obtaining, by a computer, a vascular diameter (d) of an inlet and/or outlet of a blood vessel region to be analyzed from medical images which include said blood vessel region;
• a blood vessel characteristics calculation section for obtaining, by the computer, an estimated flow rate (Q) at the inlet and/or outlet based on the vascular diameter (d);
• and
• a blood flow characteristics calculation section for applying, by the computer, the estimated flow rate (Q) to a blood flow characteristics pattern of said blood vessel region and outputting blood flow characteristics at the inlet and/or outlet of said blood vessel region.