90°脉冲激发后,磁共振信号以指数曲线衰减,称为( )After 90 ° RF pulse excitation, the MRI signal attenuates exponentially is called( )
A: 纵向弛豫Longitudinal relaxation
B: 横向弛豫Transverse relaxation
C: 自由感应衰减(FID)Free induction decay (FID)
D: 进动Precession
E: 自旋Spin
发布时间:2024-06-16 14:10:30