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US 2017/0281979 A1Published application
Radiation Treatment Platform and Method Using a Portal Imaging Device to Automatically Control Therapy Administration
AssigneeVarian Medical Systems International AG
InventorsRisto Ahonen, Esa Kuusela, Tuomas E. Torsti
Life of this patent
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Abstract
A portal imaging device is used to determine an amount of radiation that is delivered to at least one point while administering a radiation treatment therapy to a patient. Upon detecting that the amount of radiation that is delivered to that at least one point exceeds a predetermined amount of radiation (for example, a planned amount of radiation per the radiation treatment plan), administration of radiation treatment therapy to the patient can be automatically halted.
Claims20
A method comprising:
- while administering a radiation treatment therapy to a patient using a movable radiation source in accordance with a radiation treatment plan, using a portal imaging device to determine an amount of radiation that is delivered to at least one point;
- detecting when the amount of radiation that is delivered to the at least one point exceeds a predetermined amount of radiation;
- when the amount of radiation that is delivered to the at least one point exceeds the predetermined amount of radiation, automatically halting the administering of the radiation treatment therapy to the patient.
An apparatus comprising:
- a movable radiation source;
- a drive mechanism configured to selectively move the movable radiation source;
- a portal imaging device configured to move in conjunction with the movable radiation source;
- a control circuit operably coupled to the portal imaging device and to the movable radiation source and configured to:
- while administering a radiation treatment therapy to a patient using the movable radiation source in accordance with a radiation treatment plan, using the portal imaging device to determine an amount of radiation that is delivered to at least one point;
- detect when the amount of radiation that is delivered to the at least one point exceeds a predetermined amount of radiation;
- when the amount of radiation that is delivered to the at least one point exceeds the predetermined amount of radiation, automatically halt the drive mechanism.
4 more elements
Dependencies are inferred from the claim text.