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PET imaging method, device and equipment

An imaging method and imaging device technology, which are applied in image generation, image data processing, 2D image generation, etc., can solve the problems of low image signal-to-noise ratio, increase noise, and cannot display the real condition of patients, and achieve high image quality. Effect

Inactive Publication Date: 2021-04-13
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0004] However, long-term signal acquisition will inevitably increase the noise; in addition, large doses of radiopharmaceuticals will cause irreversible damage to the human body
Therefore, under the constraints of acquisition time and injected drug dose, the image signal-to-noise ratio of dynamic PET reconstruction is low
Excessive noise will make the image unable to show the real condition of the patient, making medical diagnosis more difficult and less accurate

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  • PET imaging method, device and equipment
  • PET imaging method, device and equipment

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Embodiment Construction

[0055] Aiming at the technical problems of low image quality and low signal-to-noise ratio in current dynamic PET imaging methods, the embodiment of the present application provides a PET imaging technology, which reconstructs PET parametric images by combining parametric image reconstruction technology and guided filtering technology. An image with high signal-to-noise ratio and fine details is obtained.

[0056] The technical solution of the present application will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0057] The PET scanning technology described in the embodiment of this application can be applied to a PET scanning system, figure 1 Schematic diagram of the structure of the PET scanning system provided for the embodiment of the application, such as figure 1 As shown, the PET scanning system may inclu...

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Abstract

The invention provides a PET imaging method, device and equipment, and relates to the technical field of PET imaging, and the method comprises the steps: carrying out the parameter image reconstruction of PET data through a preset parameter image reconstruction algorithm, and obtaining a first PET parameter image; performing noise filtering on the PET data to obtain target PET data; performing parameter image reconstruction on the target PET data by adopting a parameter image reconstruction algorithm to obtain a second PET parameter image; and determining a sparse matrix of the second PET parameter image, and performing guided filtering on the first PET parameter image by adopting the sparse matrix to obtain a target PET parameter image. According to the technical scheme, the imaging noise can be reduced, and the PET imaging quality can be improved.

Description

technical field [0001] The present application relates to the field of positron emission tomography (Positron Emission Tomography, PET) imaging technology, in particular to a PET imaging method, device and equipment. Background technique [0002] PET is an emission-type imaging technology and a relatively advanced clinical examination imaging technology in the field of nuclear medicine. This technology has been widely used in disease diagnosis, clinical examination and treatment effect evaluation in the medical field. [0003] The PET technique works by injecting a drug carrying a radiotracer into the patient and then measuring the distribution of the radiotracer in the patient. PET imaging includes static PET imaging and dynamic PET imaging, wherein dynamic PET imaging can provide tracer distribution maps at continuous time points. In order to have a more accurate and clear judgment on the lesion site and extent of the patient, PET imaging is gradually changing from static...

Claims

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Application Information

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IPC IPC(8): G06T11/00
CPCG06T11/005G06T11/006G06T11/008G06T2211/412G06T2211/424
Inventor 郑海荣刘新张娜胡战利杨永峰梁栋毛鑫
Owner SHENZHEN INST OF ADVANCED TECH