| 摘要 |
PROBLEM TO BE SOLVED: To realize a diagnosis in response to a shape change of heart when examining bloodstream in the heart.SOLUTION: A lumen line 52 is formed on the basis of multiple sample points corresponding to an outer edge of a heart cavity. Each sample point on the lumen line 52 is traced in a two-dimensional plane over multiple frames through pattern matching using correlation computation and the like based on a pixel value (luminance value, etc.) of image data. A starting point S and an ending point E of an inflow line 54 and a starting point S and an ending point E of an outflow line 56 are positioned at the sample points on the lumen line 52. Thereby, the inflow line 54 and the outflow line 56 are set according to a shape change of the lumen line 52, that is to say, so as to follow heart motion in the image data.SELECTED DRAWING: Figure 1 |
