Teletherapy location and dose distribution control system and method
First Claim
1. A method of controlling irradiation positioning, the method comprising:
- obtaining a plurality of reference scans of a target tissue, each representing a unique phase of a breathing cycle;
obtaining a pre-treatment scan of the target tissue;
identifying the reference scan of the obtained plurality of reference scans whose phase is consonant with the obtained pre-treatment scan;
computing at least one motion vector field between the identified reference scan and another of the plurality of reference scans different from the identified reference scan;
applying the at least one computed motion vector field to one of the obtained pre-treatment scan and the another of the plurality of reference scans so as to derive at least one synthetic scan whose phase is consonant with the other of the obtained pre-treatment scan and the another of the plurality of reference scans; and
positioning the target tissue in relation to a therapeutic agent source responsive to said obtained at least one synthetic scan.
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Accused Products
Abstract
A method of adjusting an irradiation treatment plan, the plan constituted of: obtaining a plurality of reference scans of a target tissue over a breathing cycle; obtaining a pre-treatment scan of the target tissue; identifying the reference scan whose phase is consonant with the obtained pre-treatment scan; computing at least one motion vector field between the identified reference scan and another of the plurality of reference scans different from the identified reference scan; applying the at least one computed motion vector field to one of the obtained pre-treatment scan and the another of the plurality of reference scans so as to obtain at least one synthetic scan whose phase is consonant with the other of the obtained pre-treatment scan and the another of the plurality of reference scans; and adjusting one of an irradiation dose, irradiation angle and irradiation positioning responsive to the at least one synthetic scan.
99 Citations
15 Claims
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1. A method of controlling irradiation positioning, the method comprising:
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obtaining a plurality of reference scans of a target tissue, each representing a unique phase of a breathing cycle; obtaining a pre-treatment scan of the target tissue; identifying the reference scan of the obtained plurality of reference scans whose phase is consonant with the obtained pre-treatment scan; computing at least one motion vector field between the identified reference scan and another of the plurality of reference scans different from the identified reference scan; applying the at least one computed motion vector field to one of the obtained pre-treatment scan and the another of the plurality of reference scans so as to derive at least one synthetic scan whose phase is consonant with the other of the obtained pre-treatment scan and the another of the plurality of reference scans; and positioning the target tissue in relation to a therapeutic agent source responsive to said obtained at least one synthetic scan. - View Dependent Claims (2, 3, 4, 5)
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6. A teletherapy control system comprising:
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a teletherapy management server; a positioning apparatus responsive to said teletherapy management server; and an imaging unit in communication with the teletherapy management server, said teletherapy management server arranged to; obtain a plurality of reference scans of a target tissue, each representing a unique phase of a breathing cycle; obtain a pre-treatment scan of the target tissue; identify the reference scan of the obtained plurality of reference scans whose phase is consonant with the obtained pre-treatment scan; compute at least one motion vector field between the identified reference scan and another of the plurality of reference scans different from the identified reference scan; apply the computed at least one motion vector field to one of the obtained pre-treatment scan and the another of the plurality of reference scans so as to derive at least one synthetic scan whose phase is consonant with the other of the obtained pre-treatment scan and the another of the plurality of reference scans; and control said positioning apparatus so as to position the target tissue in relation to a therapeutic agent source responsive to said derived at least one synthetic scan. - View Dependent Claims (7, 8, 9, 10)
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11. A non-transitory computer readable medium containing instructions for controlling an electronic device to perform a method of adjusting an irradiation treatment plan responsive to morphological changes, the method comprising:
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obtaining a plurality of reference scans of a target tissue each representing a unique phase of a breathing cycle; obtaining a pre-treatment scan of the target tissue; identifying the reference scan of the obtained plurality of reference scans whose phase is consonant with the obtained pre-treatment scan; computing at least one motion vector field between the identified reference scan and another of the plurality of reference scans different from the identified reference scan; applying the at least one computed motion vector field to one of the obtained pre-treatment scan and the another of the plurality of reference scans so as to derive at least one synthetic scan whose phase is consonant with the other of the obtained pre-treatment scan and the another of the plurality of reference scans; and positioning the target tissue in relation to a therapeutic agent source responsive to said obtained at least one synthetic scan. - View Dependent Claims (12, 13, 14, 15)
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Specification