Portable uniform correcting device for PET equipment and correcting method of portable uniform correcting device

A calibration device and normalization technology, applied in computerized tomography scanners, echo tomography, etc., can solve problems affecting the value of diagnostic images, and achieve the effects of simple structure, high precision, and short calibration time

Inactive Publication Date: 2015-07-29
FMI MEDICAL SYST CO LTD
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Problems solved by technology

PET detectors without normalization correction will seriously affect the value of diagnostic images

Method used

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  • Portable uniform correcting device for PET equipment and correcting method of portable uniform correcting device
  • Portable uniform correcting device for PET equipment and correcting method of portable uniform correcting device
  • Portable uniform correcting device for PET equipment and correcting method of portable uniform correcting device

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Embodiment Construction

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] Please refer to figure 1 , figure 2 as well as Figure 4 As shown, the present invention is used for the preferred embodiment of the portable normalization correction device of PET equipment, comprises the PET frame 1 that is provided with scanning hole and scanning bed 2, is provided with detector in PET frame 1, detector It has a circular scanning field of view (scanning field of view, referred to as FOV, Field of Vision, which is defined as the area where real coincidence events can be detected inside the detector ring) (not shown in the figure), and t...

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Abstract

The invention relates to a portable uniform correcting device for PET equipment and a correcting method of the portable uniform correcting device. The portable uniform correcting device comprises a PET machine frame and a scanning bed; a scanning hole is formed in the PET machine frame; a detector is arranged in the PET machine frame; the detector has a circular scanning view; the portable uniform correcting device is arranged on the top surface, close to the PET machine frame, of the scanning bed; the portable uniform correcting device comprises a rotating shaft, a rotating arm and a radiating source rod; the rotating shaft can drive the radiating source rod to rotate by 360 degrees at the constant speed through the rotating arm; the radiating source rod is arranged on the lateral side of the rotating arm; the radiating source rod extends into the scanning hole of the PET machine frame and can rotate along the hole wall of the scanning hole; the axis of the rotating shaft coincides with the axis of a round ring of a scanning view hole; and the axis of the radiating source rod is parallel to the axis of the rotating shaft. The portable uniform correcting device is simple in structure, convenient to carry and install, easy to operate, high in accuracy, short in correcting time and wide in application scale.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, in particular to a portable normalization correction device and a correction method for PET equipment. Background technique [0002] PET (Positron Emission Computed Tomography) is the full name of Positron Emission Computed Tomography, which is the most advanced clinical examination imaging technology in the field of nuclear medicine. PET technology is currently the only technology that uses anatomical morphology to perform functional, metabolic and receptor imaging. It is non-invasive and is currently one of the best methods for clinical diagnosis and treatment of tumors. [0003] When a radioactive isotope injected into the body undergoes positron-radiative decay (also known as positron beta decay), it releases a positron (the antiparticle corresponding to an electron), which travels a few millimeters Finally, the positron will encounter and annihilate an electron in the organism, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
Inventor 马兴江邓晓胡玮李蒙
Owner FMI MEDICAL SYST CO LTD
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