Radiation irradiating apparatus and radiation dose management system

1. A radiation irradiating apparatus, comprising:

processing circuitry configured to

acquire a past spatial cumulative dose distribution associated with patient identifying information, from a memory storing spatial cumulative dose distributions;

cause a radiation irradiator apparatus that emits radiation to irradiate the radiation to a patient associated with the patient identifying information;

calculate, during the irradiation of the radiation, a first spatial cumulative dose distribution and a second spatial cumulative dose distribution, the second spatial cumulative dose distribution being generated by adding the first spatial cumulative dose distribution to the past spatial cumulative dose distribution; and

display, on a display during the irradiation of the radiation, at least one of the first and second spatial cumulative dose distributions,

wherein each of the spatial cumulative dose distributions is generated by coordinate-transforming each position of a spatial cumulative dose distribution in a real coordinate system to a corresponding position of a spatial human body model or of volume data of the patient.

2. The radiation irradiating apparatus according to claim 1 , wherein

the radiation is X-rays, and

the processing circuitry is further configured to:

sequentially generate each of fluoroscopic images based on the X-rays having passed through the patient; and

sequentially display, on the display, a spatial distribution that is at least one of the first and second spatial cumulative dose distributions, and display, on the display, the fluoroscopic images as a moving image.

3. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to register the first spatial cumulative dose distribution in the memory.

4. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to:

align, when a plurality of past spatial cumulative dose distributions are acquired as the past spatial cumulative dose distribution, the past spatial cumulative dose distributions, and add the aligned spatial distributions with respect to body surface positions of the spatial human body model to calculate a past added spatial dose distribution; and

add the first spatial cumulative dose distribution to the past added spatial dose distribution during the radiation irradiation to calculate the second spatial cumulative dose distribution.

5. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to display the first and second spatial cumulative dose distributions in a juxtaposed manner.

6. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to switchably display, on the display, the first and second spatial cumulative dose distributions.

7. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to zoom in and display one of the first and second spatial cumulative dose distributions, while zooming out and displaying the other distribution.

8. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to sequentially and entirely display, on the display, one of the first and second spatial cumulative dose distributions, while sequentially and partially displaying the other distribution on the display.

9. The radiation irradiating apparatus accord ink to claim 1 , wherein the processing circuitry is further configured to sequentially display, on the display, one of the first and second spatial cumulative dose distributions in a shaded manner, while sequentially displaying the other distribution on the display in a numeric value.

10. The radiation irradiating apparatus according to claim 1 , wherein the processing circuitry is further configured to sequentially display, on the display, the first and second spatial cumulative dose distributions in different display patterns in an overlaid manner.

11. A radiation dose management system, comprising:

processing circuitry configured to

acquire a past spatial cumulative dose distribution associated with required patient identifying information, from a memory storing a plurality of spatial cumulative dose distributions by a plurality of radiation irradiating apparatuses performing radiation irradiations;

cause a radiation irradiator apparatus that emits radiation to irradiate the radiation to a patient associated with the patient identifying information;

calculate, during the irradiation of the radiation, a first spatial cumulative dose distribution and a second spatial cumulative dose distribution, the second spatial cumulative dose distribution being generated by adding the first spatial cumulative dose distribution to the past spatial cumulative dose distribution; and

display, on a display during the irradiation of the radiation, at least one of the first and second spatial cumulative dose distributions,

wherein each of the spatial cumulative dose distributions is generated by coordinate-transforming each position of a spatial cumulative dose distribution in a real coordinate system to a corresponding position of a spatial human body model or of volume data of the patient.

12. The radiation irradiating apparatus according to claim 1 , wherein

each of the spatial cumulative dose distributions is a distribution generated by mapping cumulative doses to body surface positions of the spatial human body model or of volume data of the patient.

13. The radiation irradiating apparatus of claim 1 , wherein the calculated first spatial cumulative dose distribution corresponds to a spatial cumulative dose distribution acquired during the irradiation of the radiation to the patient.