System and method of detecting a breathing phase of a patient receiving radiation therapy
First Claim
Patent Images
1. A method of detecting a breathing phase of a patient receiving radiation therapy, the method comprising:
- obtaining a plurality of patient images with an image device, the plurality of patient images representing different phases of a breathing cycle;
calculating a plurality of anticipated radiation detector responses for at least one of the plurality of patient images;
delivering radiation to the patient with a radiation delivery device having a radiation source configured to emit a radiation beam toward the patient, and the radiation detector positioned opposite the radiation source and configured to receive at least a portion of the radiation beam;
the radiation detector collecting transmission data of the patient during the delivery of radiation to the patient; and
comparing the plurality of anticipated detector responses to the transmission data with a computer operatively coupled to the radiation delivery device.
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Abstract
A system and method of detecting a breathing phase of a patient receiving radiation therapy is disclosed. The method, in one implementation, includes the acts of obtaining a plurality of patient images representing phases of a breathing cycle, delivering radiation to the patient, collecting transmission data of the patient during the delivering radiation, and comparing the transmission data to the plurality of patient images.
414 Citations
26 Claims
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1. A method of detecting a breathing phase of a patient receiving radiation therapy, the method comprising:
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obtaining a plurality of patient images with an image device, the plurality of patient images representing different phases of a breathing cycle; calculating a plurality of anticipated radiation detector responses for at least one of the plurality of patient images; delivering radiation to the patient with a radiation delivery device having a radiation source configured to emit a radiation beam toward the patient, and the radiation detector positioned opposite the radiation source and configured to receive at least a portion of the radiation beam; the radiation detector collecting transmission data of the patient during the delivery of radiation to the patient; and comparing the plurality of anticipated detector responses to the transmission data with a computer operatively coupled to the radiation delivery device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26)
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19. A system for detecting a breathing phase of a patient receiving radiation therapy, the system comprising:
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a radiation therapy device including a radiation module operable to deliver radiation to the patient, and a detector positioned opposite the radiation module, the detector operable to collect transmission radiation; and a computer operatively coupled to the radiation therapy device, the computer having a computer operable medium including instructions that cause the computer to obtain a plurality of patient images representing different phases of a breathing cycle, calculate a plurality of anticipated responses from the detector for at least one of the plurality of patient images, obtain transmission data of the patient from the collected transmission radiation, and compare the plurality of anticipated detector responses to the transmission data. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification