| 摘要 |
PROBLEM TO BE SOLVED: To continue proper imaging regardless of the fluctuation in the respiratory state of a subject. SOLUTION: In this magnetic resonance imaging apparatus, a main control section 10g repeatedly detects the respiratory level of the subject 200, and controls each related section so that the subject 200 may be imaged conforming to magnetic resonance signals for imaging which have been collected by a collecting means under a state wherein the respiratory level is within an allowable range. The main control section 10g repeatedly detects a peak value within one cycle in the respiratory motion of the subject 200, and sets the allowable range conforming to the average value of the peak values within a first period. The main control section 10g calculates the fluctuation amount of the peak value based on a plurality of peak values detected within a second period regarding each of a plurality of the second periods which have been set in a manner to be shifted from each other in time so that the plurality of the peak values may be detected. Then, the main control section 10g sets the length of the first period in response to a frequency exceeding a reference value during a third period in which the fluctuation amount is longer than that of the second period. COPYRIGHT: (C)2011,JPO&INPIT |
