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Intra-fraction motion management system and method during therapeutic process

A radiotherapy, coordinate system technology, applied in the field of radiotherapy, can solve problems such as harm to patients, increase the complexity of the system and treatment process, and discomfort for patients, and achieve the effect of avoiding potential damage

Active Publication Date: 2016-02-10
ELEKTA AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invasive solutions can be uncomfortable for the patient and can also be harmful to the patient
Furthermore, prior art systems may have the problem of withstanding the gamma radiation produced in, for example, the Perfexion system (a radiation therapy system provided by applicant)
These systems should not add to the complexity of the system and the treatment process itself

Method used

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  • Intra-fraction motion management system and method during therapeutic process
  • Intra-fraction motion management system and method during therapeutic process
  • Intra-fraction motion management system and method during therapeutic process

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Embodiment Construction

[0057] First, refer to Figure 1 to Figure 3, a radiotherapy system to which the present invention is applicable will be described, the radiotherapy system comprising a radiotherapy unit or radiation unit 10 and a patient positioning unit 20 . In the radiation unit 10, a radiation source, a radiation source supporter, a collimator body, and an outer shielding element are provided. The collimator body comprises a number of collimator channels directed towards a common focus as generally known in the art.

[0058] The collimator body also acts as a radiation shield to prevent radiation from reaching the patient instead of passing through the collimator channel. An example of a collimator configuration suitable for use in a radiation therapy system of the present invention can be found in US Patent No. 6,931,096, which is incorporated herein by reference in its entirety. However, the invention is also applicable to radiation therapy systems that use other configurations to brin...

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Abstract

The present invention relates to the field of radiation therapy. In particular, the invention concerns systems and methods for monitoring intra-fraction motions of patients in connection with treatment cancer in radiation therapy system. A patient marker is attached on the nose of the patient and images of the patient marker and reference markers of a reference tool is captured at predetermined time intervals, wherein the reference tool comprises The reference markers are arranged in a defined positions relative to a patient fixation arrangement for fixation of the patient during treatment. A position of the patient marker relative the reference markers is determined based on images captured by an optical tracking system, wherein changes in the position provide information if the patient or a part of the patient has moved.

Description

technical field [0001] The present invention relates to the field of radiotherapy. In particular, the present invention relates to systems and methods for monitoring patient movement during treatment in conjunction with radiation therapy systems. Background technique [0002] In recent years, great progress has been made in the development of surgical techniques. For example, for cancer patients requiring surgery, non-invasive surgery is now available that causes little trauma to the patient. [0003] One system for external beam radiation therapy (which utilizes gamma radiation to deliver this type of surgery) is sold under the tradename Leksell GammaKnife. The radiation is emitted from a plurality of stationary radiation sources and is focused towards a defined target or treatment volume by means of a collimator, ie a path or channel for obtaining a beam of restricted cross-section. During treatment, each radiation source provides a dose of gamma radiation that is not s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N2005/1051A61N2005/1059A61N2005/1097A61B2090/3945A61N5/1049A61N5/1067
Inventor 马蒂亚斯·利德斯特勒姆马尔科姆·威廉姆斯巴尔托什·戈尔卡鲁伊·陈托马斯·阿尔恩
Owner ELEKTA AB
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