Transformable gamma cameras

a technology of gamma cameras and transformable gamma, which is applied in the field of gamma cameras, can solve the problems of less efficient detection, higher cost than the almost 60-year old prior art, and detection with 5 mm thick cz

Inactive Publication Date: 2019-07-11
KROMEK GRP PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024]These embodiments are provided for illustration and those of ordinary skill in the art will understand that each large-FOV camera could favorably subdivide into three or more smaller-FOV cameras, each mechanically supported by the gantry and positioned

Problems solved by technology

One significant problem with state-of-the-art systems is that they are usually designed as “general purpose” SPECT systems in which many compromises have been made to accommodate different clinical applications, such as bone, brain, heart, or breast imaging.
These pixelated semiconductor detectors have many performance advantages over the monolithic scintillator and PMT prior art, but they also have the disadvantage of having a higher cost than the almost 60-year old prior art.
Incre

Method used

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Embodiment Construction

[0034]While the invention may be subject to embodiment in different forms, there is shown in the drawings, and herein will be described in detail, specific embodiments with the understanding that the present disclosure is to be considered an exemplification of the principles of the invention, and is not intended to limit the invention to that as illustrated and described herein.

[0035]FIG. 1 shows a modular semiconductor direct conversion CZT gamma detector called D-Matrix™. This aggregator module (AM) 20 is composed of four CZT crystal detectors 21, each designated a gamma module (GM), each measuring about 2.2 cm×2.2 cm×0.5 cm thick. Each GM 21 may comprise a monolithic crystal or may comprise multiple tiles of CZT mounted in an abutting composite with small gaps between the tiles. The top GM 21 surface in FIG. 1 is the metallic cathode, which is typically monolithic but which can also be pixelated. Gamma photons generally enter the GM from the cathode side of the CZT crystal. The l...

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Abstract

A gamma camera, a system, and a method are described, wherein a large gamma camera can be subdivided into two or more smaller gamma cameras, each independently positioned for SPECT data acquisition. These transformable gamma cameras make more efficient use of the gamma photon detector area. Tiled arrays of semiconductor gamma detectors are especially suited for such transformation.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority from and benefit of U.S. Provisional Patent Application No. 62 / 372,007 filed on Aug. 8, 2016 and titled “Transformable Gamma Cameras,” the subject matter of which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The principle application addressed by this disclosure is Gamma Cameras, in general, and specifically Nuclear Medicine (aka “Molecular Imaging”) which employs Single-Photon Emission Computed Tomography (SPECT) following injection of a radioisotope-labelled tracer (molecular imaging agent). The emitted gamma photons are imaged by a gamma camera, or preferably, a plurality of gamma cameras. In the case of single-photon emission (as in SPECT), a collimator (parallel hole, focusing, or multiple pinhole) is integral to the gamma camera. It is also possible to use a Compton scattering detector (also known as “electronic collimation”), such as a plurality of Si position sensi...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B6/00A61B6/06A61B6/04G01T1/166G01T1/164G01T1/202G01T1/20
CPCA61B6/037A61B6/502A61B6/4233A61B6/06A61B6/501A61B6/503A61B6/0414G01T1/166G01T1/1642G01T1/2023G01T1/2006A61B6/4258A61B6/4291A61B6/4411A61B6/4458G01T1/202
Inventor HUGG, JAMES W.
Owner KROMEK GRP PLC
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