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Dynamic PET parameter imaging method, apparatus, and system and computer-readable storage medium

A dynamic and parametric technology, applied in the field of medical imaging, can solve problems such as difficult operation and large radiation

Active Publication Date: 2018-12-04
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

[0005] Based on this, it is necessary to provide a dynamic PET parameter imaging method, device, system and computer-readable storage medium for the problems of large radiation and difficult operation when obtaining time-activity curves in traditional technology

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  • Dynamic PET parameter imaging method, apparatus, and system and computer-readable storage medium

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Embodiment Construction

[0040] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be further described in detail through the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] The method for dynamic PET parameter imaging provided by the present invention is applicable to various image processing systems, such as PET systems, positron emission computed tomography-computed tomography multimodal system PET-CT systems, positron emission computed tomography - Magnetic resonance multimodal hybrid system PET-MR system, etc. Taking the PET system as an example, figure 1 A schematic structural diagram of the PET system provided for an embodiment, such as figure 1 As shown, the PET system may include a PET scann...

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Abstract

The invention relates to a dynamic PET parameter imaging method, apparatus, and system and a computer-readable storage medium. The method comprises: first PET data of a subject within a first period of time are obtained and framing image reconstruction is carried out based on the first PET data to obtain a first time activity curve within the first period of time; second PET data of the subject within a second period of time are obtained after a preset time interval and attenuation correction is carried out on a framed reconstructed image of the second PET data based on a CT image of the subject to obtain a second time activity curve within the second period of time; according to the first time activity curve and the second time activity curve, a complete time activity curve of the subjectfrom the starting time of the first period of time to the end time of the second period of time is estimated; and dynamic PET parameter imaging is carried out based on the complete time activity curve. With the method provided by the invention, the radiation impact on the subject and the clinical operation difficulty can be reduced substantially.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to a dynamic PET parameter imaging method, device, system and computer-readable storage medium. Background technique [0002] Positron Emission Tomography (PET) is an important clinical examination imaging technique in the field of nuclear medicine, and has been widely used in diagnosis and research in the medical field. PET uses positron nuclide as a tracer, and the functional metabolic state of the lesion can be understood through the uptake of the tracer by the lesion site, so as to make a diagnosis of the disease. Usually, PET scanners are integrated with computer tomography (Computed Tomography, CT), and attenuation images are obtained through registered CT images, which are used to perform attenuation correction on reconstructed images. Dynamic PET imaging can not only show the spatial distribution of radiotracer concentration, but also reveal the dynamic process of tracer meta...

Claims

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Application Information

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IPC IPC(8): G06T11/00G06T7/11A61B6/00
CPCG06T7/11G06T11/005A61B6/52G06T2207/10104G06T2211/416G06T2211/404G06T2207/30101
Inventor 朱闻韬李弘棣
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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