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Radiation therapy method with target detection

一种放射治疗、辐射治疗的技术，应用在基于目标检测传送治疗辐射的系统领域，能够解决目标位置不密切相关、增加手术等问题

Inactive Publication Date: 2008-08-06
CARESTREAM HEALTH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, marker implantation requires additional surgery and may not be an option if the tumor site is not accessible or if too many tumors are present
Also, the position of the endogenous marker may not correlate closely with the target position

Method used

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  • Radiation therapy method with target detection
  • Radiation therapy method with target detection
  • Radiation therapy method with target detection

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Embodiment Construction

[0031] What follows follows is a detailed description of preferred embodiments of the invention with reference to the accompanying drawings, wherein like reference numerals designate like structural elements in each of the several drawings.

[0032] figure 1 An exemplary radiation therapy system with automatic target location detection is shown. refer to figure 1 , the patient 130 is positioned on a support member such as a treatment couch 132 . The patient has two or more external markers 138 attached. Cameras 139 are used to monitor the position of external markers.

[0033] The therapeutic radiation source 136 is aimed at the isocenter 134 throughout the treatment.

[0034] The radiographic unit consists of a diagnostic X-ray source 135 , while a digital X-ray imaging device 133 images a target area 131 . The radiotherapy system preferably has more than one radiographic unit to locate the three-dimensional position of the target.

[0035] Diagnostic x-ray source 135 and...

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Abstract

A method for delivering radiation therapy to a patient using a three-dimensional planning image for radiation therapy of the patient wherein the planning image includes a radiation therapy target. The method includes the steps of: determining desired image capture conditions for the capture of at least one two-dimensional radiographic image of the radiation therapy target using the three-dimensional planning image; detecting a position of the radiation therapy target in the at least one captured two-dimensional radiographic image; and determining a delivery of the radiation therapy in response to the radiation therapy target's detected position in the at least one captured two-dimensional radiographic image.

Description

technical field [0001] The present invention relates generally to radiation therapy systems, and more particularly to systems for delivering therapeutic radiation based on target detection. Background technique [0002] The present invention provides an adaptive radiation therapy method (ART) in which the location of target tissue is detected in digital radiographic images to ensure proper targeting of therapeutic radiation. [0003] Many improvements in radiation therapy aim at delivering therapeutic radiation to a target (eg, a cancerous tumor) while minimizing the dose to normal tissue. These improvements allow higher doses of radiation to be delivered to tumors, but are constrained by the necessity to limit the dose received by surrounding normal tissue. [0004] Planning radiation therapy begins with obtaining a three-dimensional image of the patient with two or more additional external markers. This imaging modality allows physicians to precisely identify tumor bound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N2005/1061A61N2005/1062A61N2005/1059A61N5/1049
Inventor J·S·施尔德克劳特N·D·卡希尔S·杜尔加蒂L·A·雷
Owner CARESTREAM HEALTH INC
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