Medical apparatus and method
A medical apparatus according to an embodiment includes an acquirer, a corrector, an identifier, and an output controller. The acquirer is configured to acquire a fluoroscopic image of an object from an imager. The corrector is configured to correct an image of one or more predetermined regions used for identifying a target position of the object in the fluoroscopic image based on one or more correction values but does not correct an image of at least a part of a region out of the predetermined region in the fluoroscopic image. The identifier is configured to identify the target position based on an image corrected by the corrector. The output controller is configured to output an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam based on the target position identified by the identifier.
1. A medical apparatus comprising:
an acquirer configured to acquire a fluoroscopic image of an object from an imager which performs imaging by irradiating the object with an electromagnetic wave to generate a fluoroscopic image;
a corrector configured to correct an image of one or more predetermined regions used for identifying a target position of the object in the fluoroscopic image based on one or more correction values but does not correct an image of at least a part of a region out of the predetermined region in the fluoroscopic image;
an identifier configured to identify the target position based on an image corrected by the corrector;
an output controller configured to output an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam based on the target position identified by the identifier; and
a search region setter configured to set a search region with respect to the fluoroscopic image acquired by the acquirer,
wherein the corrector is configured to correct an image of the search region set by the search region setter but does not correct an image of a region out of the search region in the fluoroscopic image.
2. The medical apparatus according to claim 1 , wherein the predetermined region is a region including the target position in the fluoroscopic image.
3. The medical apparatus according to claim 1 ,
wherein the output controller is configured to output the irradiation permission signal when a predetermined target is settled in a irradiation permission range, and
wherein the predetermined region is a region larger than the irradiation permission range.
4. The medical apparatus according to claim 1 , wherein the correction value is provided based on an installation error of the imager.
5. The medical apparatus according to claim 1 , further comprising:
a display controller configured to cause a display to display a screen for displaying an image corrected by the corrector.
6. The medical apparatus according to claim 5 ,
wherein the output controller is configured to output the irradiation permission signal when a predetermined target is settled in a irradiation permission range, and
wherein the display controller is configured to cause the irradiation permission range to be displayed in a manner of being superimposed on an image corrected by the corrector.
7. The medical apparatus according to claim 5 , wherein the display controller is configured to cause an uncorrected fluoroscopic image acquired by the acquirer to be displayed in a region corresponding to an area out of the predetermined region in the screen.
8. The medical apparatus according to claim 5 , wherein the display controller is configured to restrain a fluoroscopic image acquired by the acquirer from being displayed in a region corresponding to an area out of the predetermined region in the screen.
9. The medical apparatus according to claim 7 , wherein the display controller is configured to obtain a correspondence relationship between image coordinates of an image of the predetermined region before correction is performed by the corrector and image coordinates of an image of the predetermined region after correction is performed by the corrector, based on the one or more correction values, and cause an image of the predetermined region after being corrected to be displayed without a blank with respect to an uncorrected image displayed to correspond to an area out of the predetermined region in the screen, or a line corresponding to an outer edge of the predetermined region before being corrected in the image.
10. The medical apparatus according to claim 7 ,
wherein the corrector is configured to correct a region larger than the predetermined region in the fluoroscopic image, and
wherein the display controller is configured to cause an image corrected by the corrector to be displayed without a blank with respect to an uncorrected image displayed to correspond to an area out of the predetermined region in the screen, or a line corresponding to an outer edge of the predetermined region before being corrected in the image.
11. The medical apparatus according to claim 7 , wherein the display controller is configured to display a blank between an image corrected by the corrector and an uncorrected image displayed to correspond to an area out of the predetermined region in the screen or a line corresponding to an outer edge of the predetermined region before being corrected in the image, or display an uncorrected image.
12. The medical apparatus according to claim 1 , further comprising:
a learner configured to perform learning regarding a target of the object based on an image corrected by the corrector,
wherein the identifier is configured to identify the target position based on information regarding the target learned by the learner.
13. The medical apparatus according to claim 5 ,
wherein the output controller is configured to output the irradiation permission signal when a predetermined target is settled in an irradiation permission range, and
wherein the display controller is configured to cause the display to display the irradiation permission range in a manner of being superimposed on the fluoroscopic image and change a color of a frame indicating the irradiation permission range when the irradiation permission signal is output.
14. The medical apparatus according to claim 5 ,
wherein the output controller is configured to output the irradiation permission signal when a predetermined target is settled in an irradiation permission range, and
wherein the display controller is configured to cause the display to display the irradiation permission range in a manner of being superimposed on the fluoroscopic image and change a hue or brightness of any of an inner region or an outer region of the irradiation permission range when the irradiation permission signal is output.
15. The medical apparatus according to claim 1 , further comprising:
a notifier configured to issue notification by a sound or a vibration when the irradiation permission signal is output.
16. A control method executed by a medical apparatus, comprising:
acquiring a fluoroscopic image of an object from an imager which performs imaging by irradiating the object with an electromagnetic wave to generate a fluoroscopic image,
correcting an image of one or more predetermined regions used for identifying a target position of the object in the fluoroscopic image based on one or more correction values but not correcting an image of at least a part of a region out of the predetermined region in the fluoroscopic image,
identifying the target position based on the corrected image,
outputting an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam based on the identified target position, and
setting a search region with respect to the acquired fluoroscopic image, and
wherein an image of the set search region is corrected but an image of a region out of the set search region in the fluoroscopic image is not corrected.
17. The medical apparatus according to claim 1 , wherein the search region setter is configured to set the search region with respect to the fluoroscopic image based on a manual operation performed by an operator.
18. A medical apparatus comprising:
an acquirer configured to acquire a fluoroscopic image of an object from an imager which performs imaging by irradiating the object with an electromagnetic wave to generate a fluoroscopic image;
a corrector configured to correct an image of one or more predetermined regions used for identifying a target position of the object in the fluoroscopic image based on one or more correction values but does not correct an image of at least a part of a region out of the predetermined region in the fluoroscopic image;
an identifier configured to identify the target position based on an image corrected by the corrector;
an output controller configured to output an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam based on the target position identified by the identifier; and
a display controller configured to:
cause a display to display a screen for displaying an image corrected by the corrector,
output the irradiation permission signal when a predetermined target is settled in a irradiation permission range, and
cause the irradiation permission range to be displayed in a manner of being superimposed on an image corrected by the corrector.