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Method and system for position adjustment of radioactive source

An adjustment method and technology of radioactive sources, applied in the medical field, can solve problems such as time-consuming and radiation of operators, and achieve the effect of improving work efficiency, avoiding the harm of radiation, and reducing the time consumed

Active Publication Date: 2018-11-09
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for adjusting the position of the radioactive source to solve the problem of artificially adjusting the current position of the radioactive source to the center of the PET scanning field of view, which takes too long and the operator has to bear unnecessary radiation question

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  • Method and system for position adjustment of radioactive source
  • Method and system for position adjustment of radioactive source
  • Method and system for position adjustment of radioactive source

Examples

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Embodiment 1

[0057] figure 1 It is a flowchart of a method for adjusting the position of a radioactive source in an embodiment of the present invention. The radioactive source is, for example, a barrel source, a rod source, or a uniform water mold. The uniform water mold refers to mixing liquid water and radioactive sources together and placing them in a cylindrical tube. Such as figure 1 As shown, the method for adjusting the position of the radioactive source is suitable for the correction of the PET system. The PET system includes a PET device, a host computer, a reconstruction machine and a computer for controlling the movement of the bed board that communicate with each other. The specific method for adjusting the position of the radioactive source Proceed as follows:

[0058] Step S1, obtaining the current position of the radioactive source according to the reconstruction machine, and sending the current position of the radioactive source to the host;

[0059] Step S2, the host ju...

Embodiment 2

[0087] Figure 4 It is a structural schematic diagram of the position adjustment system of the radioactive source of the present invention, the position adjustment system of the radioactive source includes: an acquisition module 4 and a control module 5, the acquisition module 4 is used to obtain the current position of the radioactive source 3; the control module 5 is used to receive the current position of the radiation source 3 sent by the acquisition module, and determine whether the current position of the radiation source 3 is a target position, and the target position is the center of the scanning field of view of the PET device; if not, then The computer controlling the movement of the bed board controls the movement of the bed board to adjust the radiation source from the current position to the target position; if so, there is no need to adjust the current position of the radiation source 3 .

[0088] Wherein, the control module 5 includes: a first judging module 50 ...

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Abstract

The invention provides a method and a system for adjusting positions of a radioactive source. The method for adjusting positions of a radioactive source comprises: firstly, obtaining a current position of a radioactive source by a reconstruction machine, sending the current position of the radioactive source to a host; the host determining whether the current position of the radioactive source is a target position, the target position being the midpoint of the scanning view field of a PET device; if not, using a computer which controls movement of a bed board to control movement of the bed board, so as to adjust the current position of the radioactive source to the target position; if yes, not adjusting the current position of the radioactive source. This shows that a process of obtaining the current position of the radioactive source and subsequent determining whether the current position of the radioactive source is the target position, and adjusting the current position of the radioactive source to the target position is completed by automation control of a PET system, human intervention is not needed, preventing operating personnel from suffering damages of radiation. The automation control adjustment reduces time consumed to adjust the radioactive source to the midpoint of the scanning view field of the PET device, so working efficiency is improved.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method and system for adjusting the position of a radiation source. Background technique [0002] Positron Emission Tomography (PET) system is a radionuclide tracer imaging system. Usually the detected object contains radionuclide-labeled tracer substances. The radionuclide emits positrons through decay, and the positrons annihilate with adjacent electrons to produce a pair of 511KeV gamma (γ) photons flying in opposite directions. When the gamma photon is collected by a pair of PET detection units within a certain time window, an event mark is generated, which is called a coincidence event. The coincidence event records information such as the spatial position of the pair of PET detection units. Therefore, it can be determined that annihilation has occurred at a certain position on the connection line (referred to as coincidence line) between the pair of PET detection unit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03A61B6/10
CPCA61B6/037A61B6/107A61B6/587
Inventor 张启祥宋文兵吉子军
Owner SHANGHAI UNITED IMAGING HEALTHCARE