Magnetic resonance image reconstruction method and device, computer equipment and storage medium

A technology of magnetic resonance images and magnetic resonance signals, which is applied to measurement devices, measurement of magnetic variables, instruments, etc., can solve problems such as inability to adjust time and phase, patients unable to hold breath, and continuous sampling conditions are destroyed, so as to reduce continuous sampling. The effect of the condition being broken

Active Publication Date: 2019-04-16
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

Therefore, the traditional technology cannot address the need for proper adjustment of the time period phase
2) Since MRI dynamic perfusion imaging requires continuous scanning, during the continuous scanning

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  • Magnetic resonance image reconstruction method and device, computer equipment and storage medium
  • Magnetic resonance image reconstruction method and device, computer equipment and storage medium
  • Magnetic resonance image reconstruction method and device, computer equipment and storage medium

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[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0026] Nuclear magnetic resonance (magnetic resonance, MR) examination is to place the human body in a special magnetic field, and use radio frequency pulses to excite the hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulse is stopped, the hydrogen nucleus emits a radio signal at a specific frequency, and releases the absorbed energy, which is collected by an external receiver and processed by an electronic computer to obtain an image, which is called nuclear magnetic resonance imaging. MRI has compl...

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Abstract

The application relates to a magnetic resonance image reconstruction method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a magnetic resonance signal, and obtaining K space data according to the magnetic resonance signal; distributing the K space data to one or multiple time phase, and computing the time resolution of each time phase and the data line number of each time phase of the K space data; adjusting the time phase of the K space data according to the time resolution of each time phase and the data line number of each time phase; and performing image reconstruction to obtain a medical image. The time phase of the K space data is adjusted through the time resolution of each time phase, so that the time phase can be properly adjusted for the opportunity of entering the organ by the contrast medium. The condition that the continuous sampling condition is damaged due to respiratory gating technology can be reduced as much aspossible through the data line number of each time phase.

Description

technical field [0001] The present application relates to the technical field of magnetic resonance image reconstruction, in particular to a magnetic resonance image reconstruction method, device, computer equipment and storage medium. Background technique [0002] MRI dynamic perfusion imaging is an important non-interventional medical examination method. After a period of continuous scanning (for example: continuous scanning for 40 seconds), images of multiple phases (for example: four images, one image every 10 seconds) are generated. This examination shows the process of the contrast agent entering the organ with the blood, providing irreplaceable information for disease diagnosis. Among them, the phase refers to dividing the data into multiple images in terms of time, and the time of each image is the phase. [0003] The current traditional technology divides the entire scanning time into multiple phases and reconstructs the image. However, when MRI dynamic perfusion...

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Application Information

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IPC IPC(8): G01R33/561
CPCG01R33/5619
Inventor 丁彧刘琦韩世鸿
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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