| 摘要 |
PROBLEM TO BE SOLVED: To improve the S-N ratio by forming the MR data for individual picture elements of multiple frames into absolute values, adding or averaging the MR data for the corresponding picture elements between the MR data of multiple frames, and forming the image data of the MR image of one frame. SOLUTION: Received echo signals S1 -Sn are sent to a receiver 8R in sequence, they are applied with processing such as amplification, intermediate frequency conversion, and phase detection, then they are converted into digital signals and fed to an arithmetic unit 10. The collected and stored echo data for one frame are read out in a work memory, high-speed Fourier transformation is applied to the data on the frequency space for one frame, and the complex echo data on the actual space for one frame are obtained. After Fourier transformation is applied for multiple frames, the MR data are formed into absolute values, MR data are averaged for corresponding picture elements between the MR data of multiple frames, and the image data of one frame are formed. |
