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Positron emission computerized tomography imaging system and method

A technology of positron emission and tomography, applied in computerized tomography scanners, instruments for radiological diagnosis, diagnosis, etc., can solve problems affecting the accuracy of image correction

Active Publication Date: 2016-03-16
SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, some data will be discarded in the process of data processing by the data processing circuit. In the subsequent image correction process, the reconstruction computer needs to make supplementary estimates for the discarded data, which will affect the accuracy of the final image correction.

Method used

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  • Positron emission computerized tomography imaging system and method
  • Positron emission computerized tomography imaging system and method
  • Positron emission computerized tomography imaging system and method

Examples

Experimental program
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Embodiment 1

[0058] see Figure 1b , is a schematic diagram of Embodiment 1 of the positron emission tomography imaging system provided by the present invention.

[0059] The positron emission tomography imaging system provided in this embodiment includes the following components: a detector 100, a rotational motion control module 200a, a bed motion control module 200b, a power supply control module 300, a switch 400 and a reconstruction computer 500;

[0060] The rotational motion control module 200a is used to control the motion of the rod source in the positron emission tomography imaging system;

[0061] The bed motion control module 200b is used to control the up, down, left, and right movements of the treatment bed;

[0062] In this embodiment, usually each motion control module is regarded as an independent module, and the rotation motion control module 200a and the bed motion control module 200b have independent IP addresses respectively.

[0063] The power supply control module ...

Embodiment 2

[0084] see image 3 , which is a schematic diagram of Embodiment 2 of the positron emission tomography imaging system provided by the present invention.

[0085] In the PET imaging system provided in this embodiment, each detector unit includes a compression unit 101 and a sending unit 102;

[0086] The detector unit sends the detected data to the reconstruction computer through the network bus and switch, specifically:

[0087] The compression unit 101 is configured to compress the detected data into data packets in units of preset periods;

[0088] It can be understood that the preset period can be set according to actual needs, for example, the preset period can be 50us or 100us. Each detector unit may collect data in multiple collection periods in a preset period, for example, three collection periods. When sending data, the compression unit 101 will collect the data collected in the three collection periods in a preset period The data is compressed together into a sing...

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Abstract

The invention provides a positron emission computerized tomography imaging system and a positron emission computerized tomography imaging method. According to the system, a detector, a movement control module, a power supply control module and a reconstruction computer are connected to a switch through a star network topology method, wherein the detector comprises M*N detector units, M detector units are evenly distributed on the periphery of a cyclic structure, and N detector units are evenly distributed in the axial direction of the cyclic structure; each detector unit is provided with a unique IP address; the detector units send detected data to the reconstruction computer through a network cable and the switch; the data sent by the detector units carries position information, acquisition time information and the IP addresses; the reconstruction computer carries out matching processing on the data according to the position information, the acquisition time information and the IP addresses, and carries out image reconstruction by utilizing the matched data obtained after the matching processing. All the parts communicate by utilizing the single network bus, the data interaction is convenient, and the efficiency of the reconstruction computer for carrying out the matching processing is improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a positron emission tomography imaging system and method. Background technique [0002] Positron Emission Tomography (PET, Positron Emission Tomograph) system is a computed tomography device based on the positron annihilation radiation generated during the decay process of radionuclides injected into the body and in accordance with the detection principle. PET technology is a new technology developed in nuclear medicine. It reflects changes in cell metabolism and functions from molecular level changes, and has extremely high sensitivity and specificity. [0003] Inject a very small amount of positron nuclide tracer into the human body, the positrons move in the human body, and combine with the negative electrons in the human body to produce annihilation radiation, producing two gamma photons with the same energy and opposite directions, which can be detected by PET The...

Claims

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/0487G01T1/2985A61B6/0407G01T1/175
Inventor 高鹏杨龙梁国栋李楠赵玉秋
Owner SHENYANG INTELLIGENT NEUCLEAR MEDICAL TECH CO LTD