X-ray diagnostic apparatus
View Patent ↗According to one embodiment, an end-of-life detection unit in an X-ray diagnostic apparatus is configured to detect an end of life of a detector on the basis of an output value in an X-ray image, and includes: a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector; an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest; and an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated amount of irradiation.
1. An X-ray diagnostic apparatus comprising:
an X-ray generation unit configured to generate an X ray with which a subject is to be irradiated;
an X-ray detection unit including a detector and configured to create X-ray transmission information, the detector being configured to detect the X ray transmitted through the subject;
an image creation unit configured to create an X-ray image on the basis of the X-ray transmission information; and
an end-of-life detection unit configured to detect an end of life of the detector on the basis of an output value in the X-ray image, wherein
the end-of-life detection unit includes
a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector,
an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest, and
an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated amount of irradiation.
2. The X-ray diagnostic apparatus according to claim 1 , wherein the area of interest is set as any one of a single area and a plurality of areas on the X-ray image.
3. The X-ray diagnostic apparatus according to claim 1 , wherein in a case where the X-ray is transmitted through the subject in a narrowed state, and thereby a peripheral area in which the subject is not captured appears around the X-ray image created based on the X-ray transmission information, the area of interest is set in the peripheral area of the X-ray image.
4. The X-ray diagnostic apparatus according to claim 2 , wherein in a case where the X-ray is transmitted through the subject in a narrowed state, and thereby a peripheral area in which the subject is not captured appears around the X-ray image created based on the X-ray transmission information, the area of interest is set in the peripheral area of the X-ray image.
5. The X-ray diagnostic apparatus according to claim 1 , wherein the luminance-level-value computation unit calculates the amount of X-ray irradiation of the detector by using a relational expression representing a relation between the amount of X-ray irradiation and the output value.
6. The X-ray diagnostic apparatus according to claim 5 , wherein the luminance-level-value computation unit calculates the amount of X-ray irradiation of the detector by taking into consideration a condition of the irradiation of the X ray to the subject.
7. The X-ray diagnostic apparatus according to claim 1 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
8. The X-ray diagnostic apparatus according to claim 2 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
9. The X-ray diagnostic apparatus according to claim 3 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
10. The X-ray diagnostic apparatus according to claim 4 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
11. The X-ray diagnostic apparatus according to claim 5 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
12. The X-ray diagnostic apparatus according to claim 6 , further comprising a notification unit configured to notify a result of the judgment by the end-of-life judgment unit.
13. The X-ray diagnostic apparatus according to claim 1 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
14. The X-ray diagnostic apparatus according to claim 2 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
15. The X-ray diagnostic apparatus according to claim 3 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
16. The X-ray diagnostic apparatus according to claim 5 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
17. The X-ray diagnostic apparatus according to claim 6 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
18. The X-ray diagnostic apparatus according to claim 7 , further comprising:
a communication control unit configured to enable a communication with an outside of the X-ray diagnostic apparatus, wherein
the result of the judgment by the end-of-life judgment unit is notifiable to the outside.
19. An X-ray diagnostic apparatus comprising:
an X-ray generation unit configured to generate an X ray with which a subject is to be irradiated;
an X-ray detection unit including a detector and configured to create X-ray transmission information, the detector being configured to detect the X-ray transmitted through the subject;
an image creation unit configured to create an X-ray image on the basis of the X-ray transmission information; and
an end-of-life detection unit configured to detect an end of life of the detector on the basis of a pixel value in the X-ray image, wherein
the end-of-life detection unit includes
a luminance-level-value computation unit configured to calculate the pixel value in an area of interest which is set on any one of the X-ray image and the detector,
a pixel-value accumulation unit configured to calculate an accumulated pixel value in the area of interest by adding the pixel value calculated by the luminance-level-value computation unit to a previous pixel value in the area of interest, and
an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated pixel value.
20. An X-ray diagnostic apparatus comprising:
an X-ray generation device including
an X-ray generation unit configured to generate an X ray with which a subject is to be irradiated, and
a system control unit configured to control the X-ray generation unit; and
an image collection device including
an X-ray detection unit including a detector and configured to create X-ray transmission information, the detector being configured to detect the X ray transmitted through the subject,
an image creation unit configured to create an X-ray image on the basis of the X-ray transmission information,
a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector,
an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest, and
an end-of-life judgment unit configured to make a judgment on an end of life of the detector on the basis of the accumulated amount of irradiation.