| 摘要 |
PURPOSE:To shorten the measuring time by measuring signals from a plurality of nuclides containing an object to be inspected within almost at the same time length as that when a signal is measured from a single nuclide. CONSTITUTION:When the imaging of <1>H and the chemical shift of <31>P are measured, <1>H is measured in the section A and <31>P in the section B. In the section A, upon the application of a 90 deg. high frequency magnetic field, an slant magnetic field Gz is applied to a slice vertical to the direction Z is selected. Subsequently, a 180 deg. high frequency magnetic field is applied to invert the magnetization and an echo signal generated at the time t0 is detected under a slant magnetic field Gxy. Since the frequency fn of the high frequency magnetic field applied in the section A differs from the resonance frequency fp measured in the section B, no interference is caused. Because the magnetization of <31>P is in the direction of magnetostatic fields, the effect of the slant magnetic field applied in the section A vanishes the moment the slant magnetic field is made OFF and thus, in noway causes such an effect as the high frequency magnetic field does. |
