Spin echo mr imaging with spiral acquisition

Abstract

The invention relates to a method of MR imaging of an object () positioned in an examination volume of an MR device (). It is an object of the invention to enable spiral MR imaging with a reduced level of ringing artefacts close to strong local IC main magnetic field inhomogeneity. The method of the invention comprises the following steps:—generating a spin echo by subjecting the object () to an imaging sequence comprising an RF excitation pulse () followed by an RF refocusing pulse (), wherein a modulated readout magnetic field gradient () is applied subsequent to the RF refocusing pulse (),—acquiring MR signal data by recording the spin echo along a spiral trajectory in k-space, wherein the waveform of the readout magnetic field gradient () defining the spiral trajectory starts before the spin echo center (), and—reconstructing an MR image from the acquired MR signal data. Moreover, the invention relates to an MR device () and to a computer program for an MR device ().