一种螺旋桨磁共振成像方法
By constructing and filtering the correlation matrix of propeller magnetic resonance imaging, the accuracy of motion estimation was improved, the problems of image quality and diagnostic accuracy under high noise were solved, and clearer image acquisition was achieved.
CN117158894BActive Publication Date: 2026-07-17SHANGHAI SOUNDWISE TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI SOUNDWISE TECHNOLOGY CO LTD
- Filing Date
- 2023-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing propeller-driven magnetic resonance imaging technology suffers from decreased motion estimation accuracy under high noise conditions, leading to reduced image quality and diagnostic accuracy.
Method used
By acquiring propeller magnetic resonance imaging data, the translational and rotational correlations of each blade layer are calculated, a correlation matrix is constructed, and motion parameters are estimated after filtering. Finally, image reconstruction is performed to improve the accuracy of motion estimation.
Benefits of technology
It improves image quality and diagnostic accuracy, reduces motion artifacts and blurring, and enhances the practicality and wide applicability of propeller-driven magnetic resonance imaging.
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Smart Images
Figure CN117158894B_ABST
Abstract
本发明公开了一种螺旋桨磁共振成像方法，属于磁共振成像技术领域；包括，步骤S1，获取螺旋桨磁共振成像数据；步骤S2，将每个片层的第一个叶片作为参考叶片，并依据运动相关性，得到平移估计值和旋转角度估计值；步骤S3，将旋转角度估计值和平移估计值，依据实际采集顺序进行拼接，得到旋转相关性矩阵和平移相关性矩阵；步骤S4，进行滤波处理，得到滤波后旋转相关性矩阵和滤波后平移相关性矩阵；步骤S5，估计旋转运动参数和平移运动参数；步骤S6，进行图像重建，得到螺旋桨磁共振成像图像。上述技术方案的有益效果是：提高了运动估计的精度，提高了图像质量和诊断准确性。
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