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US 11,534,625 B2Granted
Radiation treatment based on dose rate
AssigneeVarian Medical Systems, Inc.
InventorsDeepak Khuntia, Edward Vertatschitsch, Eric Abel, Anthony Magliari, Christel Smith
Life of this patent
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Abstract
A dose rate-volume histogram can be generated for a target volume. The dose rate-volume histogram can be stored in computer system memory and used to generate a radiation treatment plan. The radiation treatment plan can be used as the basis for treating a patient using a radiation treatment system.
Claims20
A radiation treatment system, comprising:
- a beam-generating system that generates a beam;
- and
- a control system coupled to the beam-generating system, comprising a processor and a memory;
- wherein the memory stores a radiation treatment plan comprises an irradiation time-volume histogram for a target volume, wherein the irradiation time-volume histogram indicates a percentage of the target volume that is irradiated for a respective length of time;
- and
- wherein the beam-generating system and the beam are controlled by the control system according to the radiation treatment plan.
3 more elements
A method of using a radiation treatment system for radiation treatment, the method comprising:
- controlling, with a control system, a beam of radiation that is directed at a target volume, wherein said controlling is according to a radiation treatment plan stored in a memory of the control system, wherein the radiation treatment plan comprises a predicted dose rate-volume histogram for the target volume, wherein the predicted dose rate-volume histogram indicates a percentage of the target volume predicted to receive a respective dose rate based on the radiation treatment plan;
- measuring dose rate to the target volume during the radiation treatment;
- determining a measured dose rate-volume histogram based on the dose rate to the target volume measured during the radiation treatment;
- comparing the predicted dose rate-volume histogram and the measured dose rate-volume histogram;
- and
- adjusting the beam direction and/or the beam direction based on a result of said comparing.
3 more elements
A method of using a radiation treatment system, the method comprising:
- generating a beam with a beam system;
- directing the beam at a target volume;
- and
- controlling the beam with a control system comprising a computer system comprising a processor and a memory coupled to the processor, wherein said controlling is according to a radiation treatment plan stored in the memory, wherein the radiation treatment plan comprises an irradiation time-volume histogram for the target volume, and wherein the irradiation time-volume histogram indicates a percentage of the target volume that is irradiated for a respective length of time.
1 more element
Dependencies are inferred from the claim text.