System and method for fast T2-weighted MR imaging with fat and fluid suppression

A method of three dimensional (3D) dynamic magnetic resonance imaging of an imaging space comprising:

• placing a subject into a substantially homogeneous magnetic field in the imaging space of a magnetic resonance imager;
• acquiring four images, or data sets of images, in-phase (IP) and out-of-phase (OP) at a short and a long echo time (TE) using a single-shot turbo spin echo from one or more magnetic resonance imager excitations:
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a Dixon reconstruction;
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a shared-field-map Dixon reconstruction;
• subtracting a long TE water-only image from the shared-field-map Dixon reconstruction from the short TE water-only image from the Dixon reconstruction to provide a fluid attenuation;
• processing at least a pair of water-only and fat-only images at a short and long echo time (TE) to generate a quantitative fat-fraction map;
• and
• reconstructing one or more magnetic resonance images from the acquired four images or data sets into one or more 3D magnetic resonance images.

A computerized method of three dimensional (3D) dynamic magnetic resonance imaging, the method comprising:

• acquiring four images, or data sets of images, in-phase (IP) and out-of-phase (OP) at a short and a long echo time (TE) using a single-shot turbo spin echo from one or more magnetic resonance imager excitations;
• and
• using a processor:
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a Dixon reconstruction;
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a shared-field-map Dixon reconstruction;
• subtracting a long TE water-only image from the shared-field-map Dixon reconstruction from the short TE water-only image from the Dixon reconstruction to provide a fluid attenuation;
• processing at least a pair of water-only and fat-only images at a short and long echo time (TE) to generate a quantitative fat-fraction map;
• and
• reconstructing one or more magnetic resonance images from the acquired data sets to provide one or more 3D magnetic resonance images.

A system for three dimensional (3D) dynamic magnetic resonance imaging, the system comprising:

• a magnetic resonance imager that generates a substantially homogeneous magnetic field in an imaging space and capable of detecting a subject for magnetic resonance imaging;
• and
• a processor comprising a non-transitory computer readable medium comprising instructions stored thereon for:
• acquiring four images, or data sets of images, in-phase (IP) and out-of-phase (OP) at a short and a long echo time (TE) using a single-shot turbo spin echo from one or more magnetic resonance imager excitations;
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a Dixon reconstruction;
• processing at least a pair of in-phase (IP) and out-of-phase (OP) images at a short and a long echo time (TE) using single-shot turbo spin echo using a shared-field-map Dixon reconstruction;
• subtracting a long TE water-only image from the shared-field-map Dixon reconstruction from the short TE water-only image from the Dixon reconstruction to provide a fluid attenuation;
• processing at least a pair of water-only and fat-only images at a short and long echo time (TE) to generate a quantitative fat-fraction map;
• and
• reconstructing the one or more magnetic resonance images from the acquired data sets to provide one or more 3D magnetic resonance images;
• wherein the processor reconstructs the one or more magnetic resonance images from the acquired four images or data sets to provide a set of 3D magnetic resonance images with a processor, wherein the 3D magnetic resonance images are obtained without increasing sensitivity to B0 inhomogeneities, and simultaneously suppressing fat and fluid in the images;
• and
• storing on a computer or in one or more databases or displaying on a communications interface, the 3D magnetic resonance images.