Medical image processing apparatus

1. A medical image processing apparatus, comprising:

processing circuitry configured to

extract, based on a first area that is an area to which radiation is emitted and a second area that is an area affected by the radiation emitted, a two-dimensional flat plane cross-section that satisfies a certain condition and that passes through two points, the first area and the second area being specified by volume data and the two points being a first point included in the first area and a second point included in the second area, and

cause a display to display an image of the cross-section,

wherein the certain condition used by the processing circuitry is a condition that a difference between (a) a distance between the two points and (b) a minimum value of a distance between a point included in the first area and a point included in the second area is less than a threshold.

2. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to cause the display to display an image of at least one cross-section among a sagittal cross-section that passes through the first point, a sagittal cross-section that passes through the second point, a coronal cross-section that passes through the first point, and a coronal cross-section that passes through the second point.

3. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to extract, as the two-dimensional flat plane cross-section, a plane passing through the first point, the second point, and a point that has a shortest distance from the second point out of a plurality of points that has a certain positional relationship with the first point.

4. The medical image processing apparatus according to claim 1 , wherein, when a distance between the first point and the second point is less than a threshold, the processing circuitry is further configured to cause the display to present certain information.

5. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to control the display so as to perform a filtering process that is a process to hide an image of a cross-section that does not include at least any one of the first area and the second area.

6. The medical image processing apparatus according to claim 5 , wherein the processing circuitry is further configured to determine whether the filtering process is conducted or not, based on information that is set by a setting file generated in advance.

7. The medical image processing apparatus according to claim 1 , wherein the two-dimensional flat plane cross-section is a cross-section that illustrates a distance between the first area and the second area.

8. The medical image processing apparatus according to claim 1 , wherein the processing circuitry is further configured to

cause the display to display an axial cross-section extracted from the volume data on the display, and

extract, as the two dimensional flat plane cross-section, a plane passing through the first point, the second point, and a third point that is non-co-linear with the first and second points.

9. A medical image processing apparatus, comprising:

processing circuitry configured to

extract, based on a first area that is an area to which radiation is emitted and a second area that is an area affected by the radiation emitted, a cross-section that satisfies a certain condition and that passes through two points, the first area and the second area being specified by volume data and the two points being a first point included in the first area and a second point included in the second area, and

cause a display to display an image of the cross-section, wherein the processing circuitry is further configured to

cause the display to display an axial cross-section extracted from the volume data on the display, and

extract, as the cross-section, a plane passing through the first point, the second point, and a point out of two points that have a shortest distance on the axial cross-section, the two points being a third point that is included in the first area and that is on the axial cross-section and a fourth point that is included in the second area and that is on the axial cross-section.

10. A medical image processing apparatus, comprising:

processing circuitry configured to

extract, based on a first area that is an area to which radiation is emitted and a second area that is an area affected by the radiation emitted, a cross-section that satisfies a certain condition and that passes through two points, the first area and the second area being specified by volume data and the two points being a first point included in the first area and a second point included in the second area, and

cause a display to display an image of the cross-section, wherein

the certain condition used by the processing circuitry is a condition that is determined in accordance with a difference between a distance between the two points and a minimum value of a distance between a point included in the first area and a point included in the second area and

the first point and the second point are points that are selected from the first area and the second area, respectively, such that a distance therebetween is minimum,

a fifth point and a sixth point are points that are selected from the first area and the second area such that a distance therebetween is second shortest, and

the processing circuitry is further configured to extract, as the cross-section, a plane passing through the first point, the second point, and the fifth point.

11. The medical image processing apparatus, comprising:

processing circuitry configured to

extract, based on a first area that is an area to which radiation is emitted and a second area that is an area affected by the radiation emitted, a cross-section that satisfies a certain condition and that passes through two points, the first area and the second area being specified by volume data and the two points being a first point included in the first area and a second point included in the second area, and

cause a display to display an image of the cross-section, wherein

the second area is a union of a plurality of areas, and

the processing circuitry is further configured to extract a plurality of cross-sections.

12. The medical image processing apparatus according to claim 11 , wherein the processing circuitry is further configured to extract the plurality of cross-sections in accordance with a positional relationship between the plurality of areas.