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Systems and methods for spectral analysis and gain adjustment

A peak analysis and signal technology, applied in the field of energy spectrum analysis and gain adjustment, can solve the problems of unable to provide the expected level of peak stability or gain adjustment accuracy, peak instability, large temperature, etc.

Pending Publication Date: 2019-07-12
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such methods work to a certain extent, but may not provide the desired level of peak stability or accuracy of gain adjustments
Peak instability can be a particular concern in PET systems used in conjunction with magnetic resonance imaging (MRI), since activation of the MRI system's gradient coils can result in relatively large and / or rapid temperature increases

Method used

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  • Systems and methods for spectral analysis and gain adjustment
  • Systems and methods for spectral analysis and gain adjustment
  • Systems and methods for spectral analysis and gain adjustment

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Embodiment Construction

[0023] The following detailed description of certain embodiments is better understood when read in conjunction with the accompanying figures. To the extent that figures illustrate diagrams of the functional blocks of various embodiments, the functional blocks are not necessarily indicative of the division between hardware circuitry. Thus, for example, one or more functional blocks (eg, a processor or memory) may be implemented in a single piece of hardware (eg, a general-purpose signal processor or random access memory, hard disk, etc.) or in multiple pieces of hardware. Similarly, a program may be a stand-alone program, may be incorporated as a subroutine in an operating system, may be a function of an installed software package, may be implemented in hardware or firmware, etc. It should be understood that the various embodiments are not limited to the arrangements and instrumentalities shown in the drawings.

[0024] As used herein, the terms "system", "unit" and "module" i...

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Abstract

A radiation detection system includes a detector unit and at least one processor. The detector unit is configured to generate signals responsive to radiation. The at least one processor is operably coupled to the detector unit and configured to receive the signals from the detector unit. The at least one processor is configured to obtain, during an imaging process, a first count for at least one of the signals corresponding to a first intrinsic energy window, the first energy window corresponding to values higher than an intrinsic peak value; obtain a second count for the at least one of the signals corresponding to a second intrinsic energy window, the second energy window corresponding to values lower than the intrinsic peak value; and adjust a gain applied to the signals based on at least the first count and the second count.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Patent Application 15 / 282,419, filed September 30, 2016 (now U.S. Patent 9,734,603, published August 15, 2017), which was filed on June 30, 2015 Application 14 / 755,536 (now US Patent 9,508,165, issued November 29, 2016), which is hereby incorporated by reference in its entirety, is a continuation-in-part. Background technique [0003] The subject matter disclosed herein relates generally to imaging systems and techniques, and more specifically, to energy spectrum analysis and gain adjustment. [0004] In certain types of imaging equipment, such as positron emission tomography (PET) scanners, an array of detector elements is used to detect radiation emanating from a patient. For example, in a PET scanner, an array of scintillation crystals can be used to detect annihilation photons generated within a patient. Annihilation photons are produced when positrons emitted from a radioph...

Claims

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Application Information

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IPC IPC(8): G06T11/00G01T1/17G01T1/40G06K9/00
CPCG01T1/17G01T1/40A61B6/037A61B6/4258
Inventor 弗洛里贝特斯·PM·休肯斯费尔特詹森马克·大卫·弗里斯曹拓宇
Owner GENERAL ELECTRIC CO