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Detector module for an emission tomography scanner

A technology of emission tomography and detectors, which is applied in the direction of radiodiagnostic instruments, radiation measurement, instruments, etc., can solve the problems of photon detection limitations, large volume, etc., and achieve the effect of compact design and improved accuracy

Active Publication Date: 2015-04-22
SIEMENS MEDICAL SOLUTIONS USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, photodiodes are either bulky or have limitations in photon detection

Method used

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  • Detector module for an emission tomography scanner
  • Detector module for an emission tomography scanner
  • Detector module for an emission tomography scanner

Examples

Experimental program
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Embodiment Construction

[0032] refer to figure 1 , the ring 5 of the emission tomography scanner 10 according to one embodiment of the invention comprises a plurality of detector modules 15 . exist figure 1 In the example shown in , preferably a plurality of detector modules 15 are arranged on the ring 5 because the radius of the ring 5 is constant. However, the detector modules 15 may be arranged in other desired geometries.

[0033] now refer to figure 2, each detector module 15 includes a scintillator block 17 including a scintillator 18 optically coupled to a first type solid state photodetector 21 and a second type solid state photodetector 24 through a light guide 19 . In this example, it can be seen that the first type of solid-state photodetector 21 and the second type of solid-state photodetector 24 are arranged on the scintillator block 17 . However, the first-type solid-state photodetector 21 and the second-type solid-state photodetector 24 may not be arranged directly on the scintill...

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Abstract

An emission tomography detector module and an emission tomography scanner are disclosed. In at least one embodiment, the emission tomography detector modules includes a scintillator to capture an photon, the scintillator emitting a scintillating light on capturing the photon; a first type of solid-state photodetector to detect the scintillating light; and a second type of solid-state photodetector to detect the scintillating light, wherein the first type of solid-state photodetector and the second type of solid-state photodetector are different with respect to a detecting property.

Description

technical field [0001] The invention relates to a detector module for an emission tomography scanner. Background technique [0002] Nuclear medicine is the medical specialty in which radioactive attenuation is used to obtain images showing the function and anatomy of organs, bones or tissues of the body. Radiopharmaceuticals are introduced into the body either by injection or ingestion and accumulate in specific organs, bones or tissues of interest. Such radiopharmaceuticals produce gamma photon emissions that emanate from the body and are captured by scintillation crystals, which interact with the photons to produce a flash of light, or "event." The event is detected by an array of photodetectors, such as photomultiplier tubes or photodiodes, and its spatial orientation or position is calculated and stored. In this way, from the detection of the distribution of radioactive isotopes in the body, an image of the organ or tissue under study is produced. [0003] A particula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00A61B5/055
CPCG01T1/1644A61B6/037A61B6/4411G01R33/481A61B5/055A61B6/4417G01T1/1603A61B5/0035
Inventor 马塞厄斯·J·施曼德马库斯·维斯特张楠
Owner SIEMENS MEDICAL SOLUTIONS USA INC