Scanning method and device for positron emission tomography (PET) equipment

Abstract

An embodiment of the invention provides a scanning method for PET equipment, which is applied to PET console computer device. The scanning method comprises the following steps: receiving a first reconstructed image transmitted by reconstruction computer equipment, wherein the first reconstructed image is an image obtained by performing image reconstruction based on original scanning data; determining a first scanning time interval when determining that the first reconstructed image is abnormal, wherein the first scanning time interval is a time interval determined based on the original scanning data and counting rate information after abnormal data are deleted, and the original scanning data comprise scanning time information; generating a control command according to the first scanning time interval; and transmitting the control command to the reconstruction computer equipment, wherein the reconstruction computer equipment is used for selecting data corresponding to the first scanning time interval from the original scanning data according to the control command to reconstruct an image and obtain a second reconstructed image. The embodiment of the invention can effectively improve the quality of the reconstructed image; the method is simple, flexible and effective.

Description

technical field [0001] The embodiments of the present application relate to the technical field of image processing, and in particular to a scanning method and device for a PET device for positron emission computed tomography. Background technique [0002] At present, Positron Emission Tomography (abbreviated as PET in English) equipment has been widely used in the medical field. PET is a medical imaging technology that uses positron nuclide as a tracer, reflects its metabolic changes through the uptake of the tracer by human body parts, and obtains in-vivo images by scanning with a positron electron scanner. Generally speaking, the metabolism of the tumor lesion is abnormal, and the uptake of the tracer is also abnormal, so the state of the lesion can be judged accordingly. [0003] During the process of implementing the present application, the applicant found that with the attenuation of the tracer and the occurrence of equipment abnormalities, some data that may affect ...

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Problems solved by technology

[0003] During the process of implementing this application, the applicant found that with the attenuation of the tracer and the occurrence of equipment abnormalities, some data that may affect the quality of image reconstruction may be generated during the scanning process

In addition, in cardiac and respiratory gated scans, abnormal heart or respiratory fluctuations may cause inaccurate phase segmentation and affect the quality of reconstructed images

In the prior art, before image reconstruction, the original data is compressed, and the original data is compressed and divided into several data segments. Even if an abnormality occurs in the image reconstruction, the original data cannot be restored, so the abnormal data cannot be eliminated. Have the patient rescanned and use the data from the rescan for a second image reconstruction

Therefore, the scanning method provided by the prior art has the defects of cumbersome operation, inflexibility, and inability to remove abnormal data

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