Omnidirectional PET (Positron Emission Tomography) detector

An all-angle, detector technology, applied in the direction of instruments, image data processing, 2D image generation, etc., can solve the problems of not clearly raising the sensitivity defect and the low sensitivity of the PET detector ring, so as to ensure the success rate and good effect Effect

Active Publication Date: 2019-06-07
SHANDONG MADIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first purpose of the present invention is to solve the problem of low sensitivity at the edge of the PET detector ring that exists in the prior art, and to provide a perfect PET detector solution for this situation where there is no effective solution. In this device Under the background, it can make up for t

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specific Embodiment approach

[0035] An all-angle consistent PET detector is characterized in that: a plurality of PET detection modules, each PET detection module is composed of a PET detection crystal, a photoelectric sensor array and a light guide.

[0036] An overall closed detection cavity is formed by the plurality of PET detection modules adjacent to each other, and the PET detection crystals are all arranged towards the inside of the cavity. Here, the PET detection crystals are all arranged towards the cavity, which means that the detection surfaces of the crystals are all arranged inward, so as to facilitate the detection of LOR. The said plurality of PET detection modules are adjacent to form an integrally closed detection cavity. Here, the specific forms of various integrally closed detection cavities mentioned in this application have been effectively refined. Various conveniences of integral sealing have been researched and trial-manufactured, and it is reasonable and effective to refine the c...

Embodiment 1

[0039] As mentioned above, a full-angle conforming PET detector array can have a specific shape. The full-angle conforming PET detector array is in a cylindrical shape, consisting of a barrel in the middle and two flat end caps at both ends. The barrel part is composed of a plurality of detection module rings closely arranged to form a cylinder, and each detection module ring is formed by a certain number of detection modules arranged in a circle in a crystal-inward manner to form a ring. The planar end cap consists of a certain number of detection modules arranged in parallel in a crystal-inward manner to form a disc shape, and the size of the inner surface of the approximately circular planar end cap formed by it is larger than the circular opening of the aforementioned barrel part.

[0040] The middle is a cylindrical shape, and the processing difficulty of the two-sided flat end cap is general, and the flat end cap formed by it is approximately circular. Since the PET detec...

Embodiment 2

[0042] As mentioned above, a full-angle conformable PET detector array can be specifically shaped as follows: the full-angle conformable PET detector array is in the shape of a capsule, consisting of a barrel in the middle and two concave curved end caps at both ends Composition; the barrel part is composed of several detection module rings closely arranged to form a cylindrical shape, and each detection module ring is composed of a certain number of detection modules arranged in a circle in a crystal-inward manner; the concave curved end cover is composed of A certain number of detection modules are arranged in a certain curved surface radian in the way that the crystals are concave inward, and the cross section of the concave curved end cap formed by it is perpendicular to the axis of the barrel part, which is larger than the circular opening of the barrel part.

[0043] The shape of the barrel is in the middle, and the method of concave curved end caps at both ends is genera...

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Abstract

The invention provides an omnidirectional PET (Positron Emission Tomography) detector. The omnidirectional PET detector is characterized by comprising the following components of a plurality of PET detection modules, each PET detection module consists of PET detection crystals, a photoelectric sensor array and light conductors; the adjacent PET detection modules are formed into a detection cavitywhich is wholly closed; a barrel part is a cylinder consisting of a plurality of detection module rings in tight arraying, and each detection module ring is prepared in the manner that a certain quantity of detection modules are in circumference arraying to form a ring in the manner that the crystals face inwards. The array of the omnidirectional PET detector is in a cylindrical shape, or a capsule shape, or an ellipsoid shape or a regular polygon prism shape.

Description

technical field [0001] The present invention relates to the technical field of PET detectors, in particular to a PET detector for detecting the crystal arrangement mode that has not appeared in the prior art, and a PET detector for full-angle coincidence. Background technique [0002] Positron Emission Tomography (hereinafter referred to as PET) equipment is widely used in specific imaging of animals and human bodies (hereinafter referred to as scanning objects). In PET imaging, it is necessary to inject a positron nuclide-labeled tracer into the scanning object first, and then image the distribution of the tracer in the scanning object. The imaging of the tracer-labeled part has strong specificity and can be dynamically Imaging, highly recognizable. [0003] The axial depth of the detector of traditional PET equipment is insufficient, and it can only scan a relatively limited part each time. If you want to get a PET image of the whole body of a person, you must scan multip...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B6/04G06T11/00
Inventor 刘继国
Owner SHANDONG MADIC TECH CO LTD
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