磁共振成像装置及其控制方法

By using sensors to detect and analyze body motion information in an MRI device, and adjusting data collection and image reconstruction processing, the problem of image quality degradation caused by body motion was solved, and higher quality image reconstruction was achieved.

CN115919283BActive Publication Date: 2026-07-17FUJIFILM CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIFILM CORP
Filing Date
2022-07-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Current MRI technology has difficulty effectively correcting for body movements, especially those other than respiratory movements, when detecting body movements of subjects, leading to image quality degradation, which is particularly noticeable in high-speed imaging.

Method used

An MRI device equipped with sensors is used to detect and analyze the subject's body movement information. By analyzing the temporal and spatial characteristics of body movement, data collection and image reconstruction processing are adjusted to accommodate different types of body movement and reduce the negative impact of body movement on image quality.

Benefits of technology

It effectively reduces image quality degradation caused by motion, prevents inadequate compensation or artifacts, and provides high-quality images that suppress the effects of motion.

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Abstract

本发明涉及磁共振成像装置及其控制方法。对应于体动的种类、特性来进行体动数据除外的手法、图像重构上适当的处理,减少体动的影响,并抑制体动时的数据除外所引起的画质的劣化。MRI装置收集k空间数据,并取得来自不仅能检测呼吸活动还能检测所有体动的传感器的体动信息,对该传感器所得到的体动信息进行分析,MRI装置具备对应于该分析结果使针对之后的数据收集、图像重构的处理分支而执行的处理判断部。此外,根据体动的持续时间、频度等时间上的特性以及空间上的特性特别是根据k空间中的产生模式来决定要除外的体动数据,进行适合于体动数据除外后的k空间数据的图像重构。
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