A method and device for reconstructing cardiac CT images

A CT image and heart technology, which is applied in the field of medical image processing, can solve the problems of inaccurate image reconstruction area, affect the quality of cardiac reconstruction images, and affect the accuracy of heart disease diagnosis, and achieve the effect of improving quality.

Active Publication Date: 2021-01-05
BEIJING NEUSOFT MEDICAL EQUIP CO LTD
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Problems solved by technology

However, due to the limited display area of ​​the electrocardiogram, medical staff often need to spend a lot of time and energy to determine the appropriate cardiac phase area from the above electrocardiogram as the image reconstruction area, resulting in low image reconstruction efficiency, and because of manual judgment methods lead to certain images The reconstruction area is not accurate enough, which affects the quality of the reconstructed image of the heart, which in turn affects the accuracy of the doctor's diagnosis of heart disease

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  • A method and device for reconstructing cardiac CT images
  • A method and device for reconstructing cardiac CT images
  • A method and device for reconstructing cardiac CT images

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[0028] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0029] The method for reconstructing cardiac CT images provided in this application is mainly applied to reconstructing cardiac coronary CT images based on retrospective electrocardiographic gating technology.

[0030] Among them, the retrospective electrocardiographic gating technique refers to a spiral CT such as MSCT (Multislice CT, multi-slice spiral CT) that rapidly and continuously scans the entire heart volume of the subject within a breath-hold time, collects the sca...

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Abstract

The invention provides a method and a device for reconstructing a heart CT image. The method comprises steps: periodic electrocardiosignal data of the heart are acquired; according to the electrocardiosignal data, a two-dimensional matrix is mapped, and an electrocardiogram period matrix is acquired; a detection window with a preset time phase width is used to traverse the electrocardiogram periodmatrix, and a target heartbeat time phase region is determined; and according to CT scanning raw data corresponding to the target heartbeat time phase region, a heart CT image is reconstructed. By adopting the method of reconstructing the heart CT image, a heart coronary image of an examined body can be reconstructed efficiently and accurately, the reconstructed heart CT image quality is improved, and clear image data for enabling doctors to accurately diagnose heart diseases are provided.

Description

technical field [0001] The present application relates to the technical field of medical image processing, in particular to a method and device for reconstructing cardiac CT images. Background technique [0002] Retrospective ECG gating technology is mainly applied to the coronary artery imaging of the heart, adopting the spiral CT continuous scanning method to obtain the heart volume data and corresponding ECG signals of the subject at the same time; and then select the R-R interval according to the ECG signals The CT image of the heart is reconstructed according to the scanning data corresponding to the specific cardiac phase of the above-mentioned specific cardiac phase. [0003] In the above cardiac CT image reconstruction process, the cardiac phase area selected from the R-R interval determines the quality of the reconstructed image. In related technologies, medical personnel generally select a suitable cardiac phase area in the electrocardiogram as the image reconstru...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00
CPCG06T11/003
Inventor 李戈薛明昊
Owner BEIJING NEUSOFT MEDICAL EQUIP CO LTD
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