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Spatially Corrected Nuclear Image Reconstruction

An image and constraint map technology, used in the field of medical imaging

Active Publication Date: 2017-10-10
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the volume of radiotracer measured for the calculation of SUV includes the volume of such tissue even though the tissue may not actually have accumulated the tracer

Method used

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  • Spatially Corrected Nuclear Image Reconstruction
  • Spatially Corrected Nuclear Image Reconstruction
  • Spatially Corrected Nuclear Image Reconstruction

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Experimental program
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Embodiment Construction

[0019] refer to figure 1 , schematically shows an embodiment of a medical imaging system 5 . The constraint generator 8 produces a contrast-enhanced image 10 of the tissue regions to be excluded. Images can be received directly from an anatomical imaging device 12 , such as magnetic resonance (MR), X-ray computed tomography (CT), etc., or indirectly via a network 14 . Network 14 can be wired or wireless, direct or indirect, private or public (such as the Internet), or any combination. For example, a contrast-enhanced image of adipose tissue is obtained using a full-body Dixon scan, 3 x 3 x 3 mm, directly from the MR device 3 Isotropic spatial resolution, the Dixon scan is an MR scan capable of separating water and fat body distribution. In another example, a CT scan based on Hounsfield units differentiates between water, fat and bone. The images can also be received from a storage management system 16, such as a picture archiving and communication system (PACS), a radiolog...

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Abstract

A medical imaging system (5) includes one or more processors and a display device (36). The one or more processors are programmed to receive (60) the first image (10) contrast-enhanced with a region of tissue having a unique probability of radiotracer accumulation, and based on the tissue region having a unique probability of radiotracer accumulation region, generating (60) a constraint map (20). The one or more processors are programmed to reconstruct (70) the second image having the measured redistribution of the radiotracer based on the constraint map (20) and the acquired image raw data (23) registered to the constraint map. image(44). A display device (36) displays the reconstructed second image.

Description

technical field [0001] The following generally relates to medical imaging. It finds particular application in connection with image reconstruction from nuclear imaging data and will be described with particular reference thereto. However, it should be understood that it also applies to other usage scenarios and is not necessarily limited to the above-mentioned applications. Background technique [0002] In nuclear medicine, reconstruction uses measured gamma event data to reconstruct the spatial distribution of radiotracers. The spatial distribution of the accumulated radiotracer is used, for example, to detect tumors and other suspicious lesions. The estimated spatial distribution of the detected tumor is used to measure or stage the detected tumor. However, also due to underlying physics, the spatial resolution of nuclear medicine imaging is limited compared to higher resolution imaging techniques such as magnetic resonance (MR) or X-ray computed tomography (CT). Nucle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03A61B6/00G06T7/00
CPCG06T11/005A61B5/055A61B6/032A61B6/037A61B6/463A61B6/466A61B6/5205A61B6/5247A61B6/563G06T11/006
Inventor P·博尔纳特S·雷尼施S·海因策
Owner KONINKLJIJKE PHILIPS NV