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

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...

AI Technical Summary

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 process, if the continuous time is too long, the patient to be detected cannot perform breath-holding

However, the use of respiratory gating technique leads to the destruction of continuous sampling conditions

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