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CT imaging and image-guided radiation therapy equipment

A radiotherapy and CT imaging technology, applied in the fields of medical imaging and radiotherapy guidance, can solve the problems of large dose of megavolt CT radiation, poor practicability, low contrast, etc., and achieve the effect of strong universality

Active Publication Date: 2021-03-02
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

However, as mentioned earlier, megavolt CT has a large radiation dose and low contrast, so it is not practical

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  • CT imaging and image-guided radiation therapy equipment
  • CT imaging and image-guided radiation therapy equipment
  • CT imaging and image-guided radiation therapy equipment

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Embodiment Construction

[0045]In the prior art, when the image-guided radiation therapy device realizes PET (Positron Emission Tomography) imaging and KVCT imaging functions, it is difficult to make the first PET detector, the second PET detector, the high-energy detector, the high-energy ray source and the KVCT imaging function simultaneously. The ray source is placed on the same plane. In view of this, the present invention provides a CT (computed tomography) imaging and image-guided radiotherapy device, which increases the KV coplanar with the first PET detector, the second PET detector, the high-energy detector and the high-energy ray source The ray source can realize the co-detector function of the first PET detector or the second PET detector, so as to achieve the purpose of co-scanning plane for KVCT imaging, PET imaging and radiotherapy.

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further ...

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Abstract

A CT imaging and image-guided radiotherapy device, comprising: at least one high-energy ray source, used to generate high-energy ray to perform radiotherapy on an object; a first PET detector and a second PET detector placed oppositely; At least one kilovolt KV ray source for medical diagnosis is placed on the detector, the inside of the first PET detector or the outside of the first PET detector to generate KV rays; the second PET detector receives KV rays for CT imaging; The first PET detector and the second PET detector receive the gamma photons emitted by the object to perform PET imaging. The present invention realizes the co-detector function of two PET detectors through the KV ray source, assists and / or guides radiotherapy according to KVCT imaging and / or PET imaging, and realizes radiotherapy and KVCT imaging in an image-guided radiotherapy device The purpose of co-scanning plane with PET imaging.

Description

technical field [0001] The invention relates to the fields of medical imaging and radiotherapy guidance, in particular to a computerized tomography (CT) and image-guided radiotherapy device. Background technique [0002] Radiation therapy (Radiation Therapy) is currently one of the main ways to treat malignant tumors. In radiation therapy, image guidance (Image Guidance) is one of the key means to ensure high-precision treatment. Radiation therapy guidance is essentially the use of medical imaging to obtain accurate body position information of the patient before or during treatment, reducing the treatment errors caused by the patient's body placement, heartbeat, breathing and other organ movements, thereby improving or ensuring radiation therapy. the accuracy. Currently, the most common radiation therapy is the use of high-energy X-rays at the megavolt (MV) level, and the most common radiation therapy guidance is computed tomography (CT) based on kilovolt (KV) X-rays. In...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
CPCA61B6/037A61B6/40A61B6/42A61B6/4429A61N5/103A61N5/1049A61N2005/1052
Inventor 高河伟张丽邢宇翔陈志强
Owner TSINGHUA UNIV