Apparatus and method for facilitating optimization of a radiation treatment plan for a particular patient using at least one multi-leaf collimator
AssigneeSiemens Healthineers International AG
InventorsTuomas Tallinen, Mirko Myllykoski, Marko Rusanen
Life of this patent
Estimating the term…
Abstract
A control circuit that is configured as a graphics processing unit optimizes leaf movements for at least one multi-leaf collimator, and where optimizing the leaf movements is configured as a highly parallel optimization opportunity. By one approach, a second control circuit serves, at least in part, to so configure the optimizing of the leaf movements as the highly parallel optimization opportunity. That second control circuit can itself be configured as a central processing unit (as distinct from, for example, the aforementioned graphics processing unit).
Claims16
A method to facilitate optimizing a radiation treatment plan for a particular patient using at least one multi-leaf collimator, the method comprising:
- optimizing leaf movements for the at least one multi-leaf collimator using a first control circuit configured as a graphics processing unit, wherein the graphics processing unit is configured to optimize the leaf movements as a function of
- at least one parallel explicit integration approach, wherein the at least one parallel explicit integration approach comprises, at least in part:
- determining forces acting on each leaf of the at least one multi-leaf collimator as a function, at least in part, of determined fluence under each of the leaves and from constraints between the leaves in adjacent control points;
- and
- updating velocities and positions of the leaves as a function of the forces;
- and
- wherein the optimizing the leaf movements is configured as a highly parallel optimization opportunity.
An apparatus to facilitate optimizing a radiation treatment plan for a particular patient using at least one multi-leaf collimator, the apparatus comprising:
- a first control circuit configured as a graphics processing unit configured to optimize leaf movements for the at least one multi-leaf collimator, wherein the graphics processing unit is configured to optimize the leaf movements as a function of at least one of:
- at least one metaheuristic approach;
- and/or
- at least one parallel explicit integration approach, wherein the at least one parallel explicit integration approach comprises, at least in part:
- determining forces acting on each leaf of the at least one multi-leaf collimator as a function, at least in part, of determined fluence under each of the leaves and from constraints between the leaves in adjacent control points;
- and
- updating velocities and positions of the leaves as a function of the forces;
- and
- wherein the graphics processing unit is configured to optimize the leaf movements as a highly parallel optimization opportunity.
Dependencies are inferred from the claim text.