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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

Active Publication Date: 2016-10-19
KONINKLJIJKE PHILIPS NV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the measures described above reduce variability in the delivery of planned dose distributions, the inter-segment and / or intra-segment motion information obtained by these methods is generally not used to study the effects of motion after treatment

Method used

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

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Embodiment Construction

[0022] refer to figure 1 , a radiation therapy system 100 for treating a patient is provided. Radiation therapy, such as one or more of extracorporeal beam radiation therapy, proton therapy, ablation mass, and high intensity focused ultrasound therapy, is provided to a patient using the radiation therapy system. The radiation therapy system 100 includes one or more imaging modalities 102 adapted to acquire images of objects of interest (OOIs) within a patient, such as regions of interest (ROIs) and points of interest (POIs). Imaging modality 102 suitably includes a computed tomography (CT) scanner. However, the imaging modality 102 can additionally or alternatively include one or more of a positron emission tomography (PET) scanner, a magnetic resonance (MR) scanner, a single photon emission computed tomography (SPECT) scanner, etc. kind.

[0023] Images acquired from imaging modality 102 are typically three-dimensional images. However, two-dimensional images are also cove...

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PUM

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/08
CPCA61N5/1031A61N2005/1072A61N5/1037G10L21/0208
Inventor S·巴拉特K·A·布兹杜泽克P·J·帕里克C·E·诺埃尔
Owner KONINKLJIJKE PHILIPS NV
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