| 摘要 |
PROBLEM TO BE SOLVED: To actualize high-speed imaging and obtain a characteristic data of a subject with high accuracy by improving a sensitivity of a spin to the angle frequency. SOLUTION: A high-frequency magnetic field of a flip angleαcalculated by an equality (1) ofα=TR/(T1×T2)<SP>1/2</SP>in which TR is time of reputation, T1 is the vertical relaxation time, and T2 is the horizontal relaxation time, is applied at a short time TR for the static state of both of the horizontal and the vertical magnetization of the spin of the subject. Each gradient magnetic field is applied to make the time integral value zero in TR at each gradient magnetic field of a slice selecting direction Gs, a phase encoding direction Gp, and a frequency encoding direction Gr. COPYRIGHT: (C)2006,JPO&NCIPI
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