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Image reconstructing method, device and equipment

An image reconstruction and equipment technology, applied in medical science, instruments for radiological diagnosis, diagnosis, etc., can solve the problems of high price, radiation danger, difficult storage and shielding of radioactive sources, etc., to improve accuracy and reduce costs. , the effect of avoiding radiation hazards

Active Publication Date: 2017-06-20
SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD
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Problems solved by technology

[0004] In the prior art, although the geometric factor of the crystal pair can be corrected to ensure the consistency of the sensitivity of the crystal pair to improve the accuracy of image reconstruction, however, in the existing method, on the one hand, it is necessary to place the emission source device, and The design of the external radioactive source device is complex, and the radioactive source is not easy to store and shield, and is expensive; on the other hand, the calibration process requires the staff to manipulate the radioactive source device, and the radiation emitted by the radioactive source will cause radiation hazards to the staff's body

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  • Image reconstructing method, device and equipment
  • Image reconstructing method, device and equipment

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Embodiment Construction

[0038] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0039] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The application provides an image reconstructing method, an image reconstructing device and image reconstructing equipment. The method comprises the following steps: determining a crystal efficiency factor and a geometrical factor of a single crystal in a crystal pair, wherein the crystal pair is the one on a crystal ring in PET equipment; determining the sensitivity of the crystal pair according to the crystal efficiency factor and the geometrical factor of the single crystal in the crystal pair; acquiring data of a patent scanned by the crystal pair; correcting the data by means of the sensitivity of the crystal pair; and reconstructing an image according to the corrected data. According to the application, by determining the sensitivity of the crystal pair according to the crystal efficiency factor and the geometrical factor of the single crystal in the crystal pair and effectively correcting the scanned data by means of the sensitivity, the image reconstructing accuracy is improved. In addition, by correcting the background radiation of the crystals, a radioactive source needs not to be purchased and a radioactive source device needs not to be manufactured, so that the geometrical factor of the crystal pair is concisely and efficiently calculated, and therefore, the cost is lowered, and the radioactive danger of an operator is avoided.

Description

technical field [0001] The present application relates to the technical field of medical equipment, in particular to an image reconstruction method, device and equipment. Background technique [0002] Positron emission tomography (PET, positron emission tomography) equipment is currently recognized as one of the most advanced large-scale medical research and clinical diagnostic equipment, and has excellent performance in diagnosing tumors, cardiovascular diseases and other diseases. In the process of collecting patient data by PET equipment, due to the inconsistent sensitivity (efficiency) of the crystal pair due to the polygonal geometry of the PET equipment, there is a difference between the number of collected data and the actual number of data emitted by the patient, and the reconstructed image cannot Correctly reflect the distribution of radioactive elements in the patient's body. [0003] In order to solve this problem, it is proposed in the prior art to perform geome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B6/00
CPCA61B6/03A61B6/585
Inventor 孙金刚孙智鹏刘勺连
Owner SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD
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