Visualization of volumetric modulated arc therapy (VMAT) plans

一种计划、强度的技术，应用在放射疗法、治疗、X射线/γ射线/粒子照射疗法等方向，能够解决无法表示约束最佳折衷方案、很难理解分段形状时空连续性、难以理解计划递送等问题

Active Publication Date: 2020-01-17
KONINKLIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a given plan may not represent an optimal compromise for the constraints
Unfortunately, due to the multidimensional nature of the parameters in the plans (e.g., angles and blade positions / movements for each control point, etc.), it can be difficult to understand how plans are delivered, making it difficult to compare plans and / or understand what is being done for a given Limiting factors for a given solution
For example, it may be difficult to understand the spatiotemporal continuity of segmented shapes

Method used

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  • Visualization of volumetric modulated arc therapy (VMAT) plans
  • Visualization of volumetric modulated arc therapy (VMAT) plans
  • Visualization of volumetric modulated arc therapy (VMAT) plans

Examples

Experimental program
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Embodiment Construction

[0018] figure 1 A system 10 is schematically illustrated having a radiation therapy system 100 , such as a linear accelerator (LINAC) and a treatment planning system (TPS), shown in this example as computing system 124 . The radiation therapy system 100 includes a fixed gantry 102 and a rotating gantry 104 rotatably attached to the fixed gantry 102 . Rotating gantry 104 is configured to rotate (eg, 360°, or more, or less) about treatment region 108 relative to axis of rotation 106 .

[0019] The stationary gantry 102 includes a treatment head 110 having a therapeutic (e.g., megavolt (MV)) radiation source 112 that delivers treatment radiation and a collimator 114 (e.g., a multi-leaf collimator). The radiation field exiting the treatment head 110 can be shaped into a predetermined shape. Radiation source 112 rotates with rotating gantry 104 about treatment region 108 . The collimator 114 includes a set of jaws and a plurality of blades, all of which can move independently to...

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Abstract

A system (10) includes a computing system (124) with a processor (130) and computer readable storage medium (126) with computer readable and executable instructions (128), including a radiation plan module (136), a radiation plan optimization module (138) and a radiation plan visualization module (140). The processor is configured to execute the instructions, which causes the processor to construct and visually present, via a display monitor (132), a two-dimensional plot with three-dimensions of data from a radiation plan, and two dimensions along two axes of the plot and a third dimension represented through intensity.

Description

technical field [0001] The following relates generally to radiation therapy, and more specifically to volumetric intensity modulated radiation therapy (VMAT). Background technique [0002] Volumetric Modulated Radiation Therapy (VMAT) is a type of delivery used in external beam radiation therapy (EBRT) in which a gantry rotates around a subject and the transmitted beam is shaped by moving collimator blades. A VMAT plan can be described by a set of discrete control points (CPs) along the arc, and each CP describes the collimator blade pair configuration (segment shape), beam intensity (dose rate) and gantry velocity. Finding a good and efficient VMAT plan is the task of planners and optimizers of treatment planning systems (TPS). [0003] Typically, the clinician will define the arc segment to be treated (length, location, number of arcs, etc.), the time of treatment, the number of portions, and the dose goals to measure the quality of the dose, and which machine to use (the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/103A61N5/1047A61N2005/1074A61N5/1031A61N5/1036A61N5/1081
Inventor T·维克H·S·黑泽C·诺伊基兴A·A·伊索拉R·J·威斯
Owner KONINKLIJKE PHILIPS NV
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