Method for a rapid determination of spatially resolved magnetic resonance relaxation parameters in an area of examination

摘要

In a method for a rapid determination of spatially resolved magnetic resonance relaxation parameters in an area of examination, a preparation pulse is radiated into the area of examination. During the relaxation of the longitudinal magnetization, spatially encoded magnetic resonance signals are acquired at a minimum of two different points in time using a fast magnetic resonance sequence. At each inversion time, an image data record is reconstructed from the magnetic resonance signals, which are elastically registered to each other. From the recorded image data records, values of magnetic resonance relaxation parameters are spatially accurately determined.

主权项

1. A method for rapid determination of spatially resolved magnetic resonance (MR) relaxation parameters in an examination region, comprising:
operating a magnetic resonance data acquisition unit to radiate a radio-frequency preparation pulse into an examination area of a subject in the data acquisition unit, thereby producing relaxation of longitude in all magnetization of nuclear spins in the examination area; during the relaxation of the longitudinal magnetization, operating said MR data acquisition unit to acquire spatially encoded MR signals originating from said nuclear spins at a minimum of two different inversion times, according to a fast magnetic resonance data acquisition sequence; at any of said inversion times, reconstructing an image data record from the MR signals; in a processor, elastically bringing at least two of said image data records into registration with each other, thereby producing registered image data records; and in said processor, identifying, from the registered image data records, MR relaxation parameters in a spatially correct relationship, and making said MR relaxation parameters available in electronic form at an output of said processor.