METHOD AND DEVICE FOR MAGNETIC RESONANCE FORMATION OF IMAGE

摘要

PURPOSE: To provide an imaging error reducing method during the magnetic resonance imaging as caused by an imaging error generation source of a certain class, for example, the rigid body motion of an object, the deformation of the object and a instrumental drift phenomenon during the acquiring of a signal as affecting a stable magnetic field by an external magnetic field during the acquiring of the signal. CONSTITUTION: A first spin echo pulse/gradient sequence ps1 is applied to an object. The pulse/gradient sequence ps1 comprises an excitation pulse ep1 which is applied to an object at the time t1 of nuclear spinning of the object through a transmitting/receiving coil by a transmitting means and a refocusing pulse rp1 which is applied at the time t2 of refocusing nuclear magnetization diffused. A program means is used to reconstruct a nuclear magnetic distribution by a Fourier transform from a data set and a distribution is displayed in a magnetic resonance imaging manner. A second gradient sequence ps2 comprising an excitation pulse ep2 at the time t1', a refocusing pulse pp2 at the t2' and a gradient Gz and a gradient Gx.Gy selected are applied. A magnetic resonance imaging is corrected by integration conversion.