Method and apparatus for using preferred angles when irradiating patient target volumes
First Claim
1. An apparatus comprising:
- a user interface;
a control circuit operably coupled to the user interface and configured to;
prior to optimizing an arc-therapy radiation-treatment plan, receiving input from a user via the user interface that identifies at least one angle that comprises a gantry angle as corresponds to an arc-therapy radiation-treatment apparatus as a preferred angle;
when optimizing the arc-therapy radiation-treatment plan with respect to a patient target volume, using the identified at least one angle to modify the arc-therapy radiation-treatment plan to irradiate the patient target volume by, at least in part, permitting the arc-therapy radiation-treatment apparatus to slow down a rate of moving the gantry when traversing the preferred angle as compared to angles other than the preferred angle.
1 Assignment
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Accused Products
Abstract
A control circuit identifies (prior to optimizing a radiation-treatment plan) at least one angle (such as one or more gantry angles as correspond to an arc-therapy treatment platform) to provide one or more identified angles. The control circuit then optimizes a radiation-treatment plan with respect to a particular patient target volume by using the identified angle(s) as preferred angles as regards irradiating the patient target volume. Being “preferred,” the radiation-treatment plan is thereby influenced (without being required) towards changing a rate of moving the gantry when traversing the preferred angle(s). For example, the plan can be biased towards slowing down movement of the gantry at such angles to thereby deliver a relatively greater amount of radiation to the patient target volume at the preferred angle.
5 Citations
11 Claims
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1. An apparatus comprising:
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a user interface; a control circuit operably coupled to the user interface and configured to; prior to optimizing an arc-therapy radiation-treatment plan, receiving input from a user via the user interface that identifies at least one angle that comprises a gantry angle as corresponds to an arc-therapy radiation-treatment apparatus as a preferred angle; when optimizing the arc-therapy radiation-treatment plan with respect to a patient target volume, using the identified at least one angle to modify the arc-therapy radiation-treatment plan to irradiate the patient target volume by, at least in part, permitting the arc-therapy radiation-treatment apparatus to slow down a rate of moving the gantry when traversing the preferred angle as compared to angles other than the preferred angle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
by a control circuit that operably couples to a user interface; prior to optimizing an arc-therapy radiation-treatment plan, receiving input from a user via the user interface that identifies at least one angle that comprises a gantry angle as corresponds to an arc-therapy radiation-treatment apparatus, thereby providing an identified angle; when optimizing the arc-therapy radiation-treatment plan with respect to a patient target volume, using the identified angle as a preferred angle as regards irradiating the patient target volume by, at least in part, permitting the arc-therapy radiation-treatment apparatus to slow down a rate of moving the gantry when traversing the preferred angle as compared to angles other than the preferred angle. - View Dependent Claims (8, 9, 10, 11)
Specification