A heart image reconstruction method and device

A heart and image technology, applied in the field of cardiac image reconstruction methods and devices, can solve problems affecting accurate diagnosis, discontinuity of blood vessels, motion artifacts in reconstructed images, etc., to achieve accurate cardiac reconstruction images and improve the effects of motion artifacts

Active Publication Date: 2017-06-06
SHENYANG NEUSOFT MEDICAL SYST CO LTD
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[0003] In the heart image reconstructed by the existing heart reconstruction algorithm, the phases of all heart image pixels are the same. However, from the perspective of the heart physiological movement law, the heart physiological movement is irregular, and the movement of different heart positions is no

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  • A heart image reconstruction method and device
  • A heart image reconstruction method and device
  • A heart image reconstruction method and device

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[0065] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0066] In order to reduce defects such as motion artifacts in the reconstructed heart image, the embodiment of the present invention can adjust different image positions (or a certain area in the tomographic image) based on the results of the heart image reconstruction under the same phase according to the adjustment position set by th...

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Abstract

A method includes: collecting projection data and recording electrocardiogram data when computed tomographic scanning is performed on a patient, selecting, from the projection data and based on the electrocardiogram data, first projection data related to each cardiac pixel in a same phase, and reconstructing, based on the first projection data, an image of the related cardiac pixel, to obtain a cardiac image; determining, based on the electrocardiogram data, a reconstruction phase of each reconstruction pixel in a first reconstruction region, where the first reconstruction region is an image region selected along the patient's head-to-foot direction from the cardiac image; and selecting, based on the reconstruction phase of each reconstruction pixel and from the projection data, second projection data related to the reconstruction pixel in the reconstruction phase, and reconstructing, based on the second projection data, an image of the reconstruction pixel.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a method and device for reconstructing cardiac images. Background technique [0002] With the wide popularization of medical computed tomography (Computed Tomography, CT for short) technology, cardiac CT scan reconstruction technology has become a hot spot in the field of medical research. CT reconstruction method is the core part of CT technology. Different reconstruction techniques have different effects on CT images reconstructed from the same CT projection data. Therefore, the reconstruction method will directly affect the reconstruction quality of cardiac images. [0003] In the heart image reconstructed by the existing heart reconstruction algorithm, the phases of all heart image pixels are the same. However, from the perspective of the heart physiological movement law, the heart physiological movement is irregular, and the movement of different heart positions is...

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Application Information

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IPC IPC(8): G06T11/00
CPCG06T11/005G06T2211/412
Inventor 楼珊珊郑晗
Owner SHENYANG NEUSOFT MEDICAL SYST CO LTD
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