COUCH POSITIONING SYSTEM FOR RADIOTHERAPY, TREATMENT PLAN UNIT, AND COUCH POSITIONING UNIT
First Claim
1. A couch positioning system for radiotherapy, comprising:
- a first image file generator for generating first image data for providing a first image, i.e., a reference image for couch positioning;
adding the coordinates of a set first calculation point to the first image data; and
storing the first image data to generate a first image file; and
a couch positioning unit for displaying the first image using the first image file;
displaying the first calculation point at a position corresponding to the set first calculation point in the first image;
displaying a second image which is the present image of an irradiation target on the couch; and
generating couch positioning data by use of the coordinates of the first calculation point added to the first image data and the coordinates of a second calculation point set to a target position in the second image.
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Accused Products
Abstract
An object of the present invention is to easily maintain the couch positioning accuracy and reduce the couch positioning time while resolving the complexity of input operations by the operator at the time of couch positioning. To accomplish the above object, calculation points are set to a CT image at the time of treatment planning, and the 3D coordinates of the set calculation point are set to a DRR image. When a couch positioning unit 115 loads the DRR image from an image server 109, it reads the coordinates of calculation points set to the DRR image and displays them on the monitor 116 together with the DRR image. Further, when DR image data is loaded into the couch positioning unit 115, the DR image is displayed on the monitor 116 and calculation points set to the DRR image are set also to the DR image.
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Citations
18 Claims
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1. A couch positioning system for radiotherapy, comprising:
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a first image file generator for generating first image data for providing a first image, i.e., a reference image for couch positioning;
adding the coordinates of a set first calculation point to the first image data; and
storing the first image data to generate a first image file; anda couch positioning unit for displaying the first image using the first image file;
displaying the first calculation point at a position corresponding to the set first calculation point in the first image;
displaying a second image which is the present image of an irradiation target on the couch; and
generating couch positioning data by use of the coordinates of the first calculation point added to the first image data and the coordinates of a second calculation point set to a target position in the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A treatment plan unit for radiotherapy, comprising:
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a display unit; a first operation unit for displaying an X-ray CT image on said display unit, and setting a first calculation point to the X-ray CT image displayed on said display unit; a second operation unit for generating first image data for providing a first image which simulates X-ray imaging based on CT image data for providing the X-ray CT image; and a third operation unit for operating the 2D coordinates of the first calculation point in the first image by use of the 3D coordinates of the first calculation point set to the X-ray CT image;
adding the 3D and 2D coordinates of the first calculation point to the first image data; and
storing the first image data to generate a first image file.
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12. A couch positioning unit for radiotherapy, comprising:
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a display unit; a fourth operation unit for displaying on said display unit the first image which is a reference image for couch positioning;
displaying the first calculation point at a position corresponding to set first calculation point in the first image;
displaying a second image which is the present image of an irradiation target on the couch; and
setting a second calculation point to a target position in the second image; anda fifth operation unit for generating couch positioning data by use of the coordinates of the set first calculation point and the coordinates of the second calculation point. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification