基于C^(++)语言的GRAPPA算法实现

The Implementation of GRAPPA Algorithm Based on C^(++) Language

对并行磁共振成像图像重建算法的工程实现进行了研究,采用C++语言创建了GRAPPA算法类。用成员函数的形式对GRAPPA算法中的关键步骤进行了封装,完成了重建系数的求解、拟合缺失的相位编码行、傅立叶重建等功能。调用GRAPPA类可以快速地重建出高质量的MRI图像,在图像重建领域为国内开发具有并行成像功能的超导MRI扫描仪提供了参考。

The implementation of reconstruction algorithm for parallel MRI is studied for engineering application. A class for GRAPPA algorithm is created based on C^＋＋ Language. The key procedures in GRAPPA algorithm are encapsulated using member fuctions,which can solve the reconstruction coefficients, fit the missing phase-encoded data, reconstruct theimage with inverse FFT. Through calling the GRAPPA class, images with good quality are reconstructed lastly. The GRAPPA class provides a reference in the field of reconstruction algorithm for developing the MR scanner with parallel MRI function in our country.