Medical image processing apparatus and medical image processing method
There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.
1. A medical image processing apparatus, comprising processing circuitry configured to:
acquire geometry of a coronary artery depicted in data of images relating to a heart,
calculate a fractional flow reserve (FFR) value of the acquired coronary artery, based on the acquired geometry of the coronary artery,
specify a responsible blood vessel of an ischemic region or a myocardial infarction region; and
a display to display (1) the FFR value on a 2D curved planar image that depicts the specified responsible blood vessel wherein a first axis of the 2D curved planar image represents a long axis of the specified responsible blood vessel and a second axis of the 2D curved planar image represents a short axis of the specified responsible blood vessel, and (2) a graph having a third axis representing FFR values of the specified responsible blood vessel and a fourth axis representing spatial locations for the FFR values, wherein the first and third_axes are aligned to a scale of the 2D curved planar image.
2. The medical image processing apparatus of claim 1 , wherein, when the display displays the graph, a proximal end of the specified responsible blood vessel is displayed at left side of the graph.
3. The medical image processing apparatus of claim 1 , wherein the display further displays a lipid amount of the specified responsible blood vessel.
4. The medical image processing apparatus of claim 1 , wherein the display further displays a serum cholesterol concentration of the specified responsible blood vessel.
5. The medical image processing apparatus of claim 1 , wherein the display further displays a hardness of the specified responsible blood vessel.
6. The medical image processing apparatus of claim 1 , wherein the display further displays a degree of calcification of the specified responsible blood vessel.
7. The medical image processing apparatus of claim 1 , wherein the display further displays a thickness of a fibrous capsule of the specified responsible blood vessel.
8. The medical image processing apparatus of claim 1 , wherein the display further displays the 2D curved planar image relating to the specified responsible blood vessel without displaying a curved planar image relating to a responsible blood vessel which is not specified.
9. A medical image processing system comprising a medical image diagnosis apparatus and a medical image processing apparatus,
the medical image diagnosis apparatus comprising processing circuitry configured to specify a myocardial region of a heart by contrast imaging;
the medical image processing apparatus comprising processing circuitry configured to:
acquire geometry of a coronary artery depicted in data of images relating to the heart,
calculate a fractional flow reserve (FFR) value of the acquired coronary artery, based on the acquired geometry of the coronary artery,
specify a responsible blood vessel of an ischemic region or a myocardial infarction region based on the myocardial region specified by the medical image diagnosis apparatus; and
a display to display (1) the FFR value on a 2D curved planar image that depicts the specified responsible blood vessel wherein a first axis of the 2D curved planar image represents a long axis of the specified responsible blood vessel and a second axis of the 2D curved planar image represents a short axis of the specified responsible blood vessel, and (2) a graph having a third axis representing FFR values of the specified responsible blood vessel and a fourth axis representing spatial locations for the FFR values, wherein the first and third axis aligned to a scale of the 2D curved planar image.
10. The medical image processing system of claim 9 , wherein, when the display displays the graph, a proximal end of the specified responsible blood vessel is displayed at left side of the graph.
11. The medical image processing system of claim 9 , wherein the display further displays a lipid amount of the specified responsible blood vessel.
12. The medical image processing system of claim 9 , wherein the display further displays a serum cholesterol concentration of the specified responsible blood vessel.
13. The medical image processing system of claim 9 , wherein the display further displays a hardness of the specified responsible blood vessel.
14. The medical image processing system of claim 9 , wherein the display further displays a degree of calcification of the specified responsible blood vessel.
15. The medical image processing system of claim 9 , wherein the display further displays a thickness of a fibrous capsule of the specified responsible blood vessel.
16. The medical image processing system of claim 9 , wherein the display further displays the 2D curved planar image relating to the specified responsible blood vessel without displaying a curved planar image relating to a responsible blood vessel which is not specified.
17. A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method comprising:
acquiring geometry of a coronary artery depicted in data of images relating to a heart,
calculating a fractional flow reserve (FFR) value of the acquired coronary artery, based on the acquired geometry of the coronary artery,
specifying a responsible blood vessel of an ischemic region or a myocardial infarction region: and
displaying, to a display, (1) the FFR value on a 2D curved planar image that depicts the specified responsible blood vessel wherein a first axis of the 2D curved planar image represents a long axis of the specified responsible blood vessel and a second axis of the 2D curved planar image represents a short axis of the specified responsible blood vessel, and (2) a graph having a third axis representing FFR values of the specified responsible blood vessel and a fourth axis representing spatial locations for the FFR values, wherein the first and third axis aligned to a scale of the 2D curved planar image.
18. The non-transitory computer readable medium of claim 17 , wherein, when the display displays the graph, a proximal end of the specified responsible blood vessel is displayed at left side of the graph.
19. The non-transitory computer readable medium of claim 17 , wherein the display further displays a lipid amount of the specified responsible blood vessel.
20. The non-transitory computer readable medium of claim 17 , wherein the display further displays a serum cholesterol concentration of the specified responsible blood vessel.
21. The non-transitory computer readable medium of claim 17 , wherein the display further displays a hardness of the specified responsible blood vessel.
22. The non-transitory computer readable medium of claim 17 , wherein the display further displays a degree of calcification of the specified responsible blood vessel.
23. The non-transitory computer readable medium of claim 17 , wherein the display further displays thickness of a fibrous capsule of the specified responsible blood vessel.
24. The non-transitory computer readable medium of claim 17 , wherein the display further displays the 2D curved planar image relating to the specified responsible blood vessel without displaying a curved planar image relating to a responsible blood vessel which is not specified.