| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus capable of correctly detecting the movement of the diaphragm by preventing the signal degradation in the diaphragm navigation sequence in a Black Blood sequence jointly using the diaphragm navigation sequence. SOLUTION: Before the diaphragm navigation sequence is operated, 180°RF pulse which reverses the magnetization of a diaphragm navigation sequence excitation position by 180°once again, which is already reversed by 180°by the 180°RF pulse for exciting a subject whole body, is applied so as to prevent the signal degradation in the diaphragm navigation sequence, even if the 180°RF pulse for exciting the subject whole body is applied before the operation of the diaphragm navigation sequence, and the movement of the diaphragm is correctly detected. COPYRIGHT: (C)2007,JPO&INPIT
|
