CBCT (cone beam computerized tomography) reconstruction method and radiotherapy device
A radiotherapy and X-ray technology, which is applied in the field of CBCT reconstruction methods and radiotherapy devices, can solve the problems affecting the treatment time of patients, the inability to simultaneously highlight the bony structure of soft tissues in three-dimensional volume images, and the limited acquisition time of the linear accelerator large gantry rotation speed. and other problems, to achieve the effect of shortening the image acquisition time, reducing the image acquisition time, and high real-time response ability.
Pending Publication Date: 2018-05-04
SUZHOU LINATECH MEDICAL SCI & TECH CO LTD
View PDF0 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The image acquisition time of the existing CBCT technology is limited by the rotation speed of the large gantry of the linear accelerator, which affects the treatment time of patients and the efficiency of medical treatment
At the same time, the existing CBCT system can only simply realize KVCBCT or MVCBCT, and the finally obtained 3D volume image cannot highlight soft tissue and bone structure at the same time, which affects the subjective analysis and evaluation of users.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] The Chinese-English comparison table of the nouns that may be involved in the present invention is as follows:
[0040]
[0041] In the prior art, radiotherapy patients generally go through four stages from consultation, treatment to treatment end: phantom stage, planning stage, plan confirmation, and plan execution (treatment). The organic coordination of the four links is the key to the success of radiotherapy. In the phantom stage, it is necessary to collect planned CT images of the patient, which are used in the planning stage to formulate a treatment plan. In the plan confirmation stage, it is necessary to verify the patient's setup before or during treatment, and the plan execution stage can only be entered after ensuring that the patient's current setup is consistent with the setup of the planned CT images acquired i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a CBCT (cone beam computerized tomography) reconstruction method and a radiotherapy device. A linear accelerator system comprises an MV image subsystem and a KV image subsystem, wherein the MV image subsystem is fixed on a large rack of a linear accelerator, and the KV image subsystem is fixed on an independent slip ring. The independent slip ring and the large rack can rotate in a follow-up manner or rotate independently. Because the KV image subsystem fixed on the independent slip ring can rotate independently without following rotation of the large rack, the overallrotation weight is reduced, rotation speed of the KV image subsystem and real-time responsiveness of a motion instruction are greatly improved. Besides, the independent slip ring can also perform complex rotary motion with the large rack, image acquisition time required by a CBCT algorithm is shortened, and accordingly, positioning verification time of radiotherapy patients is shortened.
Description
technical field [0001] The invention relates to an accelerator therapy device, in particular to a CBCT reconstruction method and a radiotherapy device. Background technique [0002] Before or during radiation therapy, medical staff often need to verify the patient's positioning to ensure that the patient's positioning on the treatment table is the same as when scanning the computerized tomography (CT) image used to make the treatment plan. The position is consistent, so that the target area can absorb the planned dose as much as possible, and protect the normal tissue as much as possible, that is, to ensure the implementation of precise treatment. [0003] In order to meet the needs of physicists and technicians in verifying the clinical setup of radiotherapy patients, cone beam computed tomography (CBCT) technology can be used to obtain three-dimensional volume images of patients in the treatment room, and then compared with planned CT images. The three-dimensional registr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): A61N5/10
CPCA61N5/1049
Inventor 姚毅
Owner SUZHOU LINATECH MEDICAL SCI & TECH CO LTD