CPC A61B 5/02007 (2013.01) [A61B 5/021 (2013.01); A61B 5/026 (2013.01); A61B 5/7278 (2013.01); A61B 6/032 (2013.01); A61B 6/486 (2013.01); A61B 6/503 (2013.01); A61B 6/504 (2013.01); A61B 6/507 (2013.01); A61B 6/5217 (2013.01); G06T 7/62 (2017.01); A61B 2034/105 (2016.02); G06T 2207/10081 (2013.01); G06T 2207/30048 (2013.01); G06T 2207/30104 (2013.01); G06T 2207/30172 (2013.01)] | 12 Claims |
1. A computer-implemented method, comprising:
acquiring, based on a coronary artery in three-dimensional volume data, a distribution of a blood flow index corresponding to a pressure ratio between two points in the coronary artery;
specifying an inappropriate bypass portion of the coronary artery, where forming a bypass connection is inappropriate, based on information acquired based on the coronary artery in three-dimensional volume data, the information comprising an elasticity coefficient of a blood vessel wall of the coronary artery;
writing, into a memory, a position distribution of the inappropriate bypass portion in a three-dimensional space, the position distribution being obtained based on threshold processing of the elasticity coefficient of the blood vessel wall;
calculating a rendering pixel value for a two-dimensional or three-dimensional image based on the position distribution written into the memory;
generating the two-dimensional or three-dimensional image using the calculated rendering pixel value; and
causing a display to display a location of the specified inappropriate bypass portion together with a marker superimposed on the two-dimensional or three-dimensional image, the specified inappropriate bypass portion being displayed in a distinguishable manner, wherein
the specifying comprises specifying, as the inappropriate bypass portion, a portion of the coronary artery where the elasticity coefficient of the blood vessel wall is higher than a first threshold and lower than a second threshold.
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