Patent ID: 6222365
Filing Date: 2001-04-24
Classification: G01R

Abstract:
In a magnetic resonance imaging apparatus including pulse sequence control means for controlling a pulse sequence to acquire echoes while both a radio frequency magnetic field and a gradient magnetic field are applied to an object under examination present in a static magnetic field and image reconstructing means for reconstructing an image based upon the acquired echoes, wherein said pulse sequence control means is comprised of spatial resolution control means for setting spatial resolution A along a readout gradient magnetic field direction of said reconstructed image and gradient magnetic field strength control means for applying such a readout gradient magnetic field that spatial resolution B determined by a strength of the readout gradient magnetic field and a sampling period becomes coarser than the spatial resolution A, said spatial resolution control means includes means for setting the spatial resolution A by irradiating the radio frequency magnetic field so as to selectively excite a portion of the object under examination.