Christopher J Locke

US Patent:

20200197724, Jun 25, 2020

Filed:

Mar 2, 2020

Appl. No.:

16/806321

Inventors:

- Stanford CA, US
Michael J. Hadsell - Englewood CO, US
Christopher Locke - Menlo Park CA, US
Lei Xing - Palo Alto CA, US

International Classification:

A61N 5/10

Abstract:

A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.

US Patent:

20190091485, Mar 28, 2019

Filed:

Nov 28, 2018

Appl. No.:

16/203427

Inventors:

- Stanford CA, US
Michael J. Hadsell - Englewood CO, US
Christopher Locke - Menlo Park CA, US
Lei Xing - Palo Alto CA, US

International Classification:

A61N 5/10

Abstract:

A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.