PROPELLER METHOD WITH SEPARATION OF WATER-FAT BY DIXON TECHNIQUES

摘要

FIELD: physics.;SUBSTANCE: each segment is made up of L lines of a conventional k-space trajectory with a sample in Cartesian coordinates, and individual segments of the k-space rotate relative to each other around the central point of the k-space, the magnetic resonance imaging system contains memory for storing computer-executable instructions and a processor for controlling the magnetic resonance imaging system, the execution of computer-executable instructions causing the processor to perform for each segment from the data sets of the k-space segment: MRI control system to collect data of the k-space segment using, at least, one delay time of the echo signal to perform Dixon techniques, the data of the k-space segment are collected in accordance with the shape of a segment; restoring, at least, image data of one segment using, at least, the data of one k-space segment; creating image data of the water segment and the fat segment image data using, at least, the image data of one segment; and converting the image data of the water and fat segments into water and fat segment data of the k-space, respectively, and performing the PROPELLER recovery of the given water and fat segments of the k-space.;EFFECT: magnetic resonance imaging with improved water-fat separation.;11 cl, 4 dwg