| 摘要 |
PURPOSE:To enable the reduction in scanning time without lowering quality such as contrast resolving power and spatial resolutions, by selecting the scan sequence according to the level of a spatial frequency. CONSTITUTION:A sequence memory circuit 10 controls a gate modulation circuit 6 in a desired view according to a command from a calculator 13 to apply a high frequency pulse signal from an RF power amplifier 4 to an RF transmitting coil. The circuit 10 also controls a gradient magnetic field driving circuit 3, the circuit 6 and an A/D converter 11. A phase detector 8 detects a nuclear magnetic resonance (NMR) signal being sent through an amplifier 5 with the output of an RF scinillator circuit 7 used as reference signal to be fed to the converter 11. The converter 11 converts the NMR signal obtained through the detector 8 into digital from analog to be inputted into the calculator 13. The calculator 13 switches the operation of the circuit 10 and a memory and performs a computation using data from the converter 11 to reconstruct the distribution of information on resonance energy to an image while displaying 9 a reconstructed image data.
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