MRI dynamic enhanced image reconstruction method and device, computer device and storage medium
A technology for dynamic image enhancement and image reconstruction, applied in the field of medical imaging, can solve problems such as signal rise, image quality impact, and negative impact on diagnosis
Active Publication Date: 2020-05-12
SHANGHAI UNITED IMAGING HEALTHCARE
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[0004] In the current traditional technology, when perfusion imaging is used, the magnetic resonance image after the arrival of the contrast agent will affect the magnetic resonance image before the arrival of the contrast agent during the imaging process, so that the signal rises in the magnetic resonance image before the arrival of the contrast agent. high phenomenon
And the MRI image before the arrival of the contrast agent may further cause the signal to rise due to the reconstruction algorithm
And this wrong signal rise will affect the quality of the image, that is, the contrast of the image, which will affect the doctor's misjudgment of the arrival time of the contrast agent, and have a negative impact on the diagnosis.
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[0022] In order to facilitate the understanding of the present application, and to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a full understanding of the application, and preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive. The present application can be implemented in many other ways that are different from those described here, and those skilled in the art can make similar improvements wi...
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The invention relates to an MRI dynamic enhanced image reconstruction method and device, a computer device and a storage medium. The method comprises the following steps of acquiring K spatial data, and dividing a K spatial data phase into a plurality of flat scanning phases and a plurality of arterial phases; inserting at least one phase between the plain scanning phases and the arterial phases to obtain the K space data after phase recombination, wherein the inserted at least one phase comprises the K space data in a plain scanning phase and / or the K space data in an arterial phase; and performing image reconstruction on the K space data after phase recombination to obtain a medical image. At least one phase is inserted between the flat scanning phase and the artery phase, and then imagereconstruction is carried out on the K space data after phase recombination, so that the phenomenon of signal rise of a magnetic resonance image before a contrast agent arrives during image reconstruction can be avoided, and the image quality of perfusion imaging is improved.
Description
technical field [0001] The present application relates to the technical field of medical imaging, in particular to an MRI dynamic enhanced image reconstruction method, device, computer equipment and storage medium. Background technique [0002] Magnetic resonance imaging (MRI) is a very powerful imaging method. This technology can obtain high-contrast and clear images inside the sample / tissue without damage and ionizing radiation, and has been widely used in various fields, especially in medical diagnosis. Compared with other auxiliary imaging methods, MRI has the advantages of multiple imaging parameters, fast scanning speed, high tissue resolution and clearer images. It can detect early lesions and has become a sharp tool for early screening of tumors, heart disease and cerebrovascular diseases. [0003] Dynamic contrast enhanced magnetic resonance imaging (dynamic contrast enhanced, DCE-MRI) is a perfusion imaging. Perfusion imaging is a very valuable MRI technique dev...
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IPC IPC(8): G06T11/00
CPCG06T11/003G06T2211/404G06T2211/412
Inventor 丁彧刘琦吕靖原张卫国徐健
Owner SHANGHAI UNITED IMAGING HEALTHCARE