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Image reconstruction method and device, computer equipment and storage medium

An image reconstruction and computer program technology, applied in the field of image processing, which can solve the problems of residual artifacts and poor results.

Pending Publication Date: 2020-12-04
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an image reconstruction method and device for the above-mentioned acceleration technology of the multi-PLD ASL imaging method, which independently reconstructs each PLD sampling data, and the reconstruction results will leave artifacts and the effect is not good. , computer equipment and storage media

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  • Image reconstruction method and device, computer equipment and storage medium
  • Image reconstruction method and device, computer equipment and storage medium
  • Image reconstruction method and device, computer equipment and storage medium

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Embodiment Construction

[0035] 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.

[0036] An image reconstruction method provided by this application can be applied to such as figure 1 In the illustrated application environment, a processor of a computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs and databases. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The data...

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Abstract

The invention relates to an image reconstruction method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining the K space data of a plurality of phases ofa target perfusion imaging region, obtaining an initial magnetic resonance image corresponding to each K space data, and building a low-rank joint matrix based on each K space data; and taking the K space data, the initial magnetic resonance images and the low-rank joint matrix as inputs of an objective function, solving a value of the objective function, and then determining an output magnetic resonance image corresponding to the value of the objective function when the value of the objective function meets a preset condition as a reconstructed magnetic resonance image corresponding to each of a plurality of phase phases of the target perfusion imaging area. The method can improve the image reconstruction effect and improve the image reconstruction efficiency.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to an image reconstruction method, device, computer equipment and storage medium. Background technique [0002] Arterial spin labeling (ASL) imaging technology has important application value in magnetic resonance clinical and scientific research perfusion imaging. [0003] The multi-label Post Labeling Delay (PLD) ASL technology developed in recent years, multi-PLD is also called multi-phase, which collects and analyzes multiple perfusion image data with different delay times, not only can obtain the traditional single PLD The cerebral perfusion information obtained by ASL imaging can also obtain information that cannot be obtained by single-PLD ASL methods, such as cerebral blood flow volume and peak time of blood perfusion. However, compared with the single-PLD ASL imaging method, the multi-PLD ASL imaging method requires longer scanning time. Under the same s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG06T11/003G06T2211/424
Inventor 谢军
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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