| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for improving the image quality of MRI by achieving both a reduction in body movement artifacts and suppression of the occurrence of a false echo because of the application of pre-pulses. SOLUTION: The application amount of a crusher gradient magnetic field pulse applied to a pre-pulse sequence and the application axis in employing a non-cartesian sampling method such as a hybrid radial method for the subsequent main photographing are determined in accordance with the rotation angle of a blade measured in the main photographing. The amount of the crusher gradient magnetic field pulse to be applied may be varied for each application, and the only polarity may be determined in accordance with the rotation angle. COPYRIGHT: (C)2011,JPO&INPIT |
