| 摘要 |
PROBLEM TO BE SOLVED: To provide a chemical shift image with a high frequency resolution or wide frequency band to be highly efficiently collected. SOLUTION: Positive raw data are acquired from positive echo trains 211 and 251 in the first and second EPSI (Echo-planar Spectroscopic Imaging) 210 and 250. Positive raw data 230 are created by combining the positive raw data acquired by the two times of imaging. In the combined positive raw data, sampling points corresponding to a prescribed frequency encoding quantity are arranged at time intervals, a half of the inversion period of a reading gradient magnetic field. Similarly, combined negative raw data 270 are created from negative echo trains 215 and 255 in the first and second EPSI 210. The space k is filled with the combined positive and negative raw data 230 and 270, and the chemical shift image is acquired by executing the inverse Fourier transform. COPYRIGHT: (C)2010,JPO&INPIT |
