Patent ID: 6242914
Filing Date: 2001-06-05
Classification: G01R

Abstract:
A magnetic resonance imaging method comprising:a process for switching (inverting) a gradient magnetic field at a high speed in a magnetostatic field applied to an object to be analyzed and obtaining magnetic resonant signals from atomic nuclei in said object to be analyzed as echo signals necessary for filling a k-space which is constructed by two axes of frequency encoding and phase encoding;a process for converting said resonance signals into a digital form and developing them in the k-space as echo data;a first scan process for sequentially scanning a phase encoding region corresponding to substantially a half of the k-space starting from a central portion of said k-space to an end corresponding to a Nyquist frequency, upon collecting said echo data of the k-space;a second scan process for effecting scanning from the route scanned in said first scan process with only frequency encoding directions being opposite; anda process for obtaining an image by classifying said echo data of the k-space by the encoding directions of the frequency encoding, reconstructing two images from the separate echo data sets obtained by the classification, and adding absolute number images of the reconstructed images.