Image attenuation correction method and application thereof

An attenuation correction, image technology, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as unclear images, increase the receptive field, and improve the effect of extraction
CN112509093APending Publication Date: 2021-03-16NAT INST OF ADVANCED MEDICAL DEVICES SHENZHEN
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NAT INST OF ADVANCED MEDICAL DEVICES SHENZHEN
Publication Date
2021-03-16

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Abstract

The invention belongs to the technical field of image imaging, and particularly relates to an image attenuation correction method and application thereof. At present, an image obtained by a method forproviding anatomical information for attenuation correction by computer tomography is not clear. For the synthesis from an NAC-PET image to an AC-PET image, self-correcting convolution can improve the extraction of the NAC-PET image content information by a generator and increase receptive field of convolutional layer (the receptive field being size of region mapped by pixel points on feature mapoutput by each layer of convolutional neural network (CNN) on original input image); and after the receptive field is increased, the pixel points on the feature map subjected to convolution extraction can better reflect information in the original image, and attenuation correction can be better carried out on a non-attenuation correction image (NAC-PET).
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Description

technical field

[0001] The present application belongs to the field of image imaging technology, and in particular relates to an image attenuation correction method and its application. Background technique

[0002] Positron emission tomography (PET) plays an indispensable role in early detection of diseases and postoperative staging diagnosis, and is a functional imaging method widely used in neuroscience research. Increased accumulation of fluoro-D-glucose (FDG) used in PET relative to normal tissue is a useful marker of many cancers, helping to detect and localize malignancies. Despite its many advantages, PET imaging has several disadvantages that make it difficult to treat. Radioactive components may pose a risk to pregnant or nursing patients. Also, PET is a relatively new medical procedure that can be expensive. As such, it is still not offered in most medical centers around the world. Difficulties in providing PET imaging as part of treatment have increased the n...

Claims

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