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Equipment calibration method and device

A calibration method and equipment technology, applied in the field of medical imaging, to achieve cost-saving effects

Active Publication Date: 2017-12-01
SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, there are also related technologies that use the background radiation of the crystal itself for quality control, but when a problem is detected in the equipment status, it is still necessary to use an external source for equipment calibration

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  • Equipment calibration method and device
  • Equipment calibration method and device

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Embodiment Construction

[0031] 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 examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0032] The detection crystal in a PET detector, which includes radioactive material, can be, for example, a lutetium-based scintillation crystal. The radiation produced by the radioactive substances contained in the crystal itself can be called the background radiation, and what the background radiation produces is β-γ decay. For example, when lutetium decays, unlike the general gamma...

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Abstract

The invention provides an equipment calibration method and device. The equipment calibration method includes: acquiring scanning data of background radiation of a detection crystal; determining that equipment is in a to-be-adjusted state according to the scanning data, and acquiring a data correction factor according to the scanning data; adjusting the data correction factor through energy factor conversion coefficient to acquire an application data correction factor; correcting image reconstruction data acquired by the detection crystal. By the equipment calibration method, the equipment can be calibrated according to the scanning data of the background radiation, an external source is not needed, and cost is saved.

Description

technical field [0001] The present disclosure relates to medical imaging technology, in particular to a device calibration method and device. Background technique [0002] By scanning the subject (for example, a patient) through the medical scanning system, the location of the lesion can be found, and a more targeted treatment plan can be adopted. For example, PET (Positron Emission Computed Tomography, Positron Emission Computed Tomography) is one of the most advanced large-scale medical diagnostic imaging devices today. PET can provide functional information about organs and their lesions at the molecular level using metabolism in vivo , has excellent performance in the diagnosis of tumors, cardiovascular and nervous system diseases. [0003] Due to the complexity of the PET system, and it is easily affected by factors such as the external environment and equipment aging, it is generally necessary to detect its daily status and perform regular calibration. Routine status...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/582
Inventor 孙智鹏李明刘勺连孙金刚
Owner SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD
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