Magnetic resonance imaging (MRI) system and method integrating multi-nuclide synchronous imaging and spectral imaging

A magnetic resonance imaging (MRI) system integrating multi-nuclide synchronous imaging and spectral imaging, comprising a spectral imaging module, a multi-nuclide synchronous imaging module, and a spectral reconstruction and image fusion module, wherein

• the spectral imaging module is configured to acquire a spectrum of a nuclide Nuc;
• the multi-nuclide synchronous imaging module is configured to perform synchronous imaging of nuclides Nuc1 . . . Nucn, wherein n is an integer, and n>1;
• Nuc1 is 1H;
• Nucn is a non-1H nuclide;
• and Nuc and Nuc1 . . . Nucn are different nuclides;
• the spectral reconstruction and image fusion module is configured to receive the spectrum of the nuclide Nuc and images of the nuclides Nuc1 . . . Nucn, and acquire spatial distribution information of compounds of the nuclide Nuc and spatial distribution information of the non-1H nuclide through fusion;
• and the spectral reconstruction and image fusion module is configured to reconstruct the spectrum and target compound images of the nuclide Nuc, reconstruct the images of the nuclides Nuc1 . . . Nucn, interpolate each of the target compound images of the nuclide Nuc in an image domain to a same size as a 1H image, integrate the target compound images of the nuclide Nuc and a non-1H nuclide image into the 1H image to implement the fusion, and acquire spatial distribution information of target compounds of the nuclide Nuc and spatial distribution information of the non-1H nuclide through the fusion;
• and
• the spectral imaging performed by the spectral imaging module and the multi-nuclide synchronous imaging performed by the multi-nuclide synchronous imaging module are completed within a same repetition time such that the multi-nuclide synchronous imaging performed by the multi-nuclide synchronous imaging module is performed by applying different radio frequency (RF) pulses to the nuclides Nuc1 . . . Nucn and synchronously acquiring, during longitudinal magnetization relaxation of the nuclide Nuc, echo signals ECHO1 . . . ECHOn from the nuclides Nuc1 . . . Nucn in response to the RF pulses;
• and in terms of timing, the multi-nuclide synchronous imaging is performed after the spectral imaging.