MR IMAGING USING A MULTI-POINT DIXON TECHNIQUE

摘要

The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). It is an object of the invention to provide a method that enables improved fat saturation. The method of the invention comprises the steps of: -subjecting the portion of the body (10) to a calibration sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by means of a multi-point Dixon technique at a first image resolution; -deriving calibration parameters from the calibration signal data set; -subjecting the portion of the body (10) to an imaging sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution; and -reconstructing a diagnostic MR image from the diagnostic signal data set, wherein the MR device (1) is operated according to the derived calibration parameters during acquisition of the diagnostic signal data set and/or during reconstruction of the diagnostic MR image. Moreover, the invention relates to a MR device (1) for carrying out the method and to a computer program to be run on a MR device (1).