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Medical imaging method and medical imaging system

A technology for medical imaging and correction coefficients, which is applied in the field of medical imaging and can solve the problem of different total counts of response lines.

Active Publication Date: 2016-12-21
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The problem to be solved in this application is that when the component normalization correction method is used to normalize the detector, it is easy to cause the total count of the response line used for reconstruction to be different

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  • Medical imaging method and medical imaging system
  • Medical imaging method and medical imaging system

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Embodiment Construction

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0027] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and ...

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Abstract

The invention provides a medical imaging method and a medical imaging system. The method comprises the following steps: getting scanning data; getting correction coefficients, including a normalization correction coefficient and a total count quantitative uniformity correction coefficient; correcting the scanning data with the correction coefficients to get corrected scanning data; performing image reconstruction with the corrected scanning data to get reconstructed images. Through the method, after a user performs normalization correction on scanning data, the SUV values of reconstructed images are kept consistent.

Description

technical field [0001] The present application relates to the technical field of medical imaging, in particular to a medical imaging method and system. Background technique [0002] The detector of the positron emission tomography (PET) system is composed of many modules, and the photon yield of many crystal blocks and the gain of the photomultiplier tube are inevitably different. This non-uniformity of performance will cause various Inconsistencies in detection efficiency of detector modules. In addition, the sensitivity of the detector is related to the geometry and size of the probe. The process of correcting for factors that cause differences in detector sensitivity is called normalization of the detector. [0003] The method of correction is to apply the normalization coefficient to normalize each response line. The normalization coefficient is the average value of all coincidence counts in the detection field of view and the normalization coefficient of each pair of...

Claims

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Application Information

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IPC IPC(8): G06T5/00A61B6/03
CPCA61B6/037G06T5/00G06T2207/10104G06T2207/30004G06T11/006G06T11/005G01T1/2985G06F17/18
Inventor 董晓霞
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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