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    • 4. 发明申请
    • OFFLINE ANGLE SELECTION IN ROTATIONAL IMAGING AND TRACKING SYSTEMS
    • 旋转成像和跟踪系统中的离线角选择
    • WO2018044718A1
    • 2018-03-08
    • PCT/US2017/048623
    • 2017-08-25
    • ACCURAY INCORPORATED
    • JORDAN, PetrMYRONENKO, AndriyMAURER, CalvinSCHNARR, EricO'CONNELL, Rob
    • A61N5/10
    • A processing device determines a plurality of angles from which tracking images can be generated by an imaging device. The processing device generates a plurality of projections of a treatment planning image of a patient, the treatment planning image comprising a delineated target, wherein each projection of the plurality of projections has an angle that corresponds to one of the plurality of angles from which the tracking images can be taken. The processing device determines, for each angle of the plurality of angles, a value of a tracking quality metric for tracking the target based on an analysis of a projection generated at that angle. The processing device selects a subset of the plurality of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion.
    • 处理装置确定可由成像装置从其生成跟踪图像的多个角度。 处理装置生成患者的治疗计划图像的多个投影,治疗计划图像包括描绘的目标,其中多个投影中的每个投影具有与多个角度中的一个对应的角度, 可以拍摄图像。 处理装置基于对在该角度处产生的投影的分析,针对多个角度中的每个角度确定用于追踪目标的追踪质量度量的值。 处理设备选择具有满足跟踪质量度量标准的跟踪质量度量值的多个角度的子集。
    • 10. 发明申请
    • ONLINE ANGLE SELECTION IN ROTATIONAL IMAGING AND TRACKING SYSTEMS
    • 旋转成像跟踪系统的在线角度选择
    • WO2018044726A1
    • 2018-03-08
    • PCT/US2017/048674
    • 2017-08-25
    • ACCURAY INCORPORATED
    • JORDAN, PetrMYRONENKO, AndriyMAURER, CalvinSCHNARR, EricO'CONNELL, Rob
    • A61N5/10
    • A radiation therapy apparatus determines a set of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion. During an alignment phase or a treatment phase for a treatment stage of a target by the radiation therapy apparatus, the radiation therapy apparatus performs selects at least a first angle and a second angle from the set of angles for a first rotation of the gantry. The radiation therapy apparatus generates, using an imaging device mounted to the gantry, a first tracking image of the target from the first angle during the first rotation of the gantry. The radiation therapy apparatus generates, using the imaging device, a second tracking image of the target from the second angle during the first rotation of the gantry. The radiation therapy apparatus performs the target tracking based on the first tracking image and the second tracking image.
    • 放射治疗设备确定具有满足跟踪质量度量标准的跟踪质量度量值的一组角度。 在放射治疗设备的目标的治疗阶段的对准阶段或治疗阶段期间,放射治疗设备执行从机架的第一旋转的该组角度中选择至少第一角度和第二角度。 放射治疗设备使用安装到机架的成像装置在机架的第一旋转期间从第一角度生成目标的第一追踪图像。 放射治疗设备使用成像设备在机架的第一旋转期间从第二角度生成目标的第二追踪图像。 放射治疗设备基于第一追踪图像和第二追踪图像执行目标追踪。