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Imaging system and method based on gamma radiation detection

A gamma radiation and imaging technology, applied in the imaging of gamma ray sources, imaging and/or detection systems, and imaging systems using gamma ray detection, and can solve problems such as temporal resolution and low temporal resolution

Pending Publication Date: 2021-03-09
法国放射性废物管理局 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the time resolution measured today using monolithic crystals is lower than that measured using pixel arrays

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  • Imaging system and method based on gamma radiation detection
  • Imaging system and method based on gamma radiation detection
  • Imaging system and method based on gamma radiation detection

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Embodiment Construction

[0041] The invention relates to a system and a method for imaging by detection of gamma radiation, comprising at least one processing unit (5) which analyzes , P) at least one signal provided by the group, and the at least one detection module group comprises on the one hand at least one module of the Compton camera type, which has a field of view (CV) directed towards the volume bounded by the frame, the at least one detection module The set comprises on the other hand at least one pair of coincidence detection PET modules diametrically opposed to each other on said frame and defining an imaging axis (A), said processing unit (5) analyzing the signal to determine the intersection of the imaging axis (A) and the field of view (CV), and to determine the optimal orientation and / or optimal position of each detection module (CP, P) on the frame so that the imaging axis (A) The source of gamma radiation passing through the object to be imaged (O). Thus, it is understood that the w...

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Abstract

The present invention relates to an imaging system and method based on gamma radiation detection, comprising at least one processing unit (5) which analyses at least one signal supplied by at least one set of detection modules (CP, P) mounted on a frame and comprising: at least one Compton-camera-type module having a field of view (CV) directed towards a volume defined by the frame, and at least one pair of coincidence-detection PET modules, positioned diametrically opposite one another on the chassis and defining an imaging axis (A), said processing unit (5) analysing the signal from the Compton-type module in order to determine the intersection between the imaging axis (A) and the field of view (CV) and to determine the optimal locations and / or orientations for the different detection modules (CP, P) on the chassis so that the imaging axis (A) passes through the gamma radiation source in the object (O) to be imaged.

Description

technical field [0001] This application relates to the field of imaging, and more particularly to imaging of gamma ray sources. In particular, the present invention relates to systems and methods for imaging by gamma ray detection combining Compton camera type detection and positron emission tomography (PET) type coincidence detection. The invention further relates to the use of the imaging and / or detection system, in particular in the fields of astronomy, the nuclear industry and medicine. Background technique [0002] Currently, for medical diagnostic purposes, imaging of gamma-ray sources (with energies typically greater than 30KeV) is mainly performed around three techniques: PET, SPECT and Compton cameras. [0003] SPECT is based on scintigraphy and allows three-dimensional images and reconstructions of organs and their metabolism to be made using an array of gamma cameras that rotate around the patient. SPECT can use some gamma ray energy, but allows a lead collimato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29
CPCG01T1/29G01T1/2907G01T1/2985G01T1/20184A61B6/037G01N23/20066G01T1/2978
Inventor A·伊尔蒂斯
Owner 法国放射性废物管理局
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