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SPECT and PET image correction method and device and electronic equipment

An image correction and image technology, which is applied in the field of image processing, can solve the problems of low accuracy of SPECT and PET images, and achieve the effect of solving low accuracy, improving accuracy, and effectively correcting processing

Pending Publication Date: 2019-07-30
UNIVERSITY OF MACAU
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of this application is to provide a SPECT and PET image correction method, device and electronic equipment to solve the technical problem of low accuracy of the imaged SPECT and PET images existing in the prior art

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  • SPECT and PET image correction method and device and electronic equipment
  • SPECT and PET image correction method and device and electronic equipment
  • SPECT and PET image correction method and device and electronic equipment

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Embodiment 1

[0064] An image correction method for SPECT and PET provided in the embodiment of the present application, such as figure 1 As shown, the method includes:

[0065] S11: Obtain the CT data at the end of expiration and the CT data at the end of inspiration by means of active breathing control.

[0066] The method of respiratory gating refers to the imaging technology that utilizes the thoracic movement law during respiratory movement to eliminate the impact of respiratory movement on the image quality of ultrasound, X-ray, CT, and magnetic resonance imaging. It can also be called respiratory gating. imaging technology. Specifically, during the imaging process, imaging equipment (such as ultrasound, X-ray, CT, magnetic resonance imaging, etc.) is prone to produce artifacts due to the movement of tissues or organs (such as breathing, heartbeat, etc.), which will reduce the resolution of the image. rate and diagnostic value.

[0067] In this embodiment, the average attenuation m...

Embodiment 2

[0078] An image correction method for SPECT and PET provided in the embodiment of the present application, such as figure 2 shown, including:

[0079] S21: Obtain the CT data at the end of expiration and the CT data at the end of inspiration by means of active breathing control.

[0080] In this step, the CT data at the end of expiration and the CT data at the end of inspiration are obtained from the CT images. Wherein, the CT image may be a CT image of lungs, heart, liver and other parts. This embodiment is described by taking the SPECT image, the PET image and the CT image as heart images as an example.

[0081] S22: According to the CT data at the end of inspiration and the CT data at the end of expiration, calculate using a preset formula to obtain the deformation vector between the CT data at the end of expiration and the CT data at the end of inspiration, wherein, The default formula is:

[0082] Among them, CF is the cost function, F iis the CT data at the end o...

Embodiment 3

[0133] An image correction device for SPECT and PET provided in the embodiment of the present application, such as Figure 16 As shown, the image correction device 3 for SPECT and PET includes: a first acquisition module 31 , a second acquisition module 32 and a correction module 33 .

[0134] The first acquiring module 31 is used to acquire the CT data at the end of expiration and the CT data at the end of inspiration by means of active breathing control. The second acquisition module 32 is used to obtain several interpolated CT data according to the CT data at the end of inspiration and the CT data at the end of expiration. The correction module 33 is used to perform attenuation correction on respiratory-gated SPECT and PET images using several interpolated CT data.

[0135] The second acquisition module is specifically used for: firstly, according to the CT data at the end of inspiration and the CT data at the end of expiration, use a preset formula to calculate, and obtai...

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Abstract

The invention provides an SPECT and PET image correction method and device and electronic equipment, relates to the technical field of image processing, and can solve the technical problem that the accuracy of SPECT and PET images is relatively low due to blurring caused by the breathing movement in the generation process of the SPECT and PET images. The method comprises the specific steps that CTdata at the end of expiration and CT data at the end of inspiration are acquired through an active respiratory control method; according to the CT data at the end of expiration and the CT data at theend of inspiration, several pieces of interpolation CT data are obtained; the several pieces of interpolation CT data are utilized to perform attenuation correction on respiratory gating SPECT and PET images.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to an image correction method, device and electronic equipment for SPECT and PET. Background technique [0002] Single-photon emission computed tomography (Single-Photon Emission Computed Tomography, SPECT) and positron emission tomography (Positron Emission Tomography, PET) belong to the functional tomography technology of nuclear medicine, while electronic computed tomography (Computed tomography, referred to as CT ) can provide general information. SPECT / CT and PET / CT examinations are imaging diagnostic equipment that integrate single photon emission computed tomography imaging system or positron electron computed tomography imaging system and X-ray computed tomography imaging system. [0003] During SPECT imaging, radioactive isotopes generate gamma (gamma) rays, which pass through a subject's body and are detected by a gamma-ray detector. Radioisotope-label...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/037A61B6/5264
Inventor 莫昇萍张铎
Owner UNIVERSITY OF MACAU
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