PARTIAL DEFORMATION MAPS FOR RECONSTRUCTING MOTION-AFFECTED TREATMENT DOSE USING MACHINE LEARNING

    公开(公告)号:US20210154496A1

    公开(公告)日:2021-05-27

    申请号:US17098215

    申请日:2020-11-13

    摘要: A method comprises inputting a treatment planning image of a target subject into a machine learning system. The method further comprises determining, by the machine learning system, a first target-subject-specific model of the treatment planning image. The method further comprises applying, by a processing device, the first target-subject-specific model to the treatment planning image to generate a transformed treatment planning image corresponding to a first position of a plurality of positions of the target subject. The method further comprises comparing the transformed treatment planning image to a reference image. The method further comprises, based on the comparing, modifying one or more parameters of the first target-subject-specific model to generate a second target-subject-specific model corresponding to a second position of the plurality of positions. The method further comprises controlling a treatment device based on the second target-subject-specific model to deliver a treatment to the target subject.

    PARTIAL DEFORMATION MAPS FOR RECONSTRUCTING MOTION-AFFECTED TREATMENT DOSE

    公开(公告)号:US20210154494A1

    公开(公告)日:2021-05-27

    申请号:US17098149

    申请日:2020-11-13

    IPC分类号: A61N5/10

    摘要: A method comprises identifying a treatment planning image of a target subject, the treatment planning image comprising information associated with an arrangement of structures within the target subject. The method further comprises generating, based on the information, a set of reference data associated with the target subject, the reference data indicating a plurality of positions of the target subject. The method further comprises generating target-subject-specific models based on the reference data and modifying one or more hyper-parameters of the target-subject-specific mode to generate second target-subject-specific models corresponding to a second position of the plurality of positions. The method further comprises controlling a radiation treatment delivery device based on the second target-subject-specific model to deliver a radiation treatment to the target subject.

    Fast sliding window delivery via a high-speed multileaf collimator

    公开(公告)号:US10751550B2

    公开(公告)日:2020-08-25

    申请号:US16055507

    申请日:2018-08-06

    IPC分类号: A61N5/10

    摘要: A system for delivering radiation dose, includes a gantry to move about a target to be irradiated and a radiation source mounted to the gantry and directed inward toward the target, The system further includes a collimator mounted to the gantry and in front of the radiation source, the collimator to shape a radiation beam directed at the target, wherein the collimator is to modulate a sub-beam intensity of the radiation beam across a plurality of sub-beams that subdivide a fluence field into a two-dimensional (2D) grid, and wherein a plurality of independent two-dimensional (2D) sub-beam intensity patterns are delivered from a plurality of gantry angles while the gantry moves continuously.

    FAST SLIDING WINDOW DELIVERY VIA A HIGH-SPEED MULTILEAF COLLIMATOR

    公开(公告)号:US20200043624A1

    公开(公告)日:2020-02-06

    申请号:US16055507

    申请日:2018-08-06

    IPC分类号: G21K1/04 A61N5/10

    摘要: A system for delivering radiation dose, includes a gantry to move about a target to be irradiated and a radiation source mounted to the gantry and directed inward toward the target, The system further includes a collimator mounted to the gantry and in front of the radiation source, the collimator to shape a radiation beam directed at the target, wherein the collimator is to modulate a sub-beam intensity of the radiation beam across a plurality of sub-beams that subdivide a fluence field into a two-dimensional (2D) grid, and wherein a plurality of independent two-dimensional (2D) sub-beam intensity patterns are delivered from a plurality of gantry angles while the gantry moves continuously.