Studying the dosimetric impact of exercise to generate adapted patient-specific margins in EBRT planning

A specific and planned technology, applied in the direction of organ motion/change detection, treatment, speech analysis, etc., can solve the problem of not needing to study the impact of motion, and achieve the effect of reducing risk, reducing imaging, and increasing target dose
CN103687649BActive Publication Date: 2016-10-19KONINKLJIJKE PHILIPS NV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KONINKLJIJKE PHILIPS NV
Publication Date
2016-10-19

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Abstract

A treatment planning system (106) for generating a patient-specific treatment margin. The system (106) includes one or more processors (142). The processor (142) is programmed to receive a radiation treatment plan (RTP) for irradiating a target (122) during one or more treatment segments. The RTP includes one or more treatment margins around the target (122), and a planned dose distribution for the target (122). The processor (142) is further programmed to receive motion data for at least one treatment segment of the RTP from one or more target surrogates (124), use the motion data and the planned dose distribution to calculate a motion-compensated dose distribution of the target (122), comparing the motion-compensated dose distribution with the planned dose distribution, and based on a dosimetry between the motion-compensated dose distribution and the planned dose distribution difference to adjust the disposition margin.
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Description

technical field

[0001] This application relates generally to external beam radiation therapy (EBRT). This application finds particular application in connection with generating patient-specific treatment margins and will be described with particular reference thereto. However, it should be understood that the present application also applies to other use cases and is not necessarily limited to the applications described above. Background technique

[0002] In extracorporeal beam radiation therapy (EBRT), a spatially targeted radiation dose is applied to a tumor or other target containing cancerous or malignant tissue. Growing and rapidly proliferating cancer cells are often more susceptible to damage from radiation than normal cells, so that a properly planned dose administered preferentially kills cancerous or malignant tissue. To ensure that a tumor or other target is adequately irradiated, a radiation treatment plan (RTP) is usually planned with a treatment margin aroun...

Claims

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