Fast Spin Echo. See RARE
Turbo Spin Echo. See RARE
Rapid Acquisition with Relaxation Enhancement
RARE is also known on MR systems as TSE, or FSE.
Philips: Turbo Spin Echo
Siemens: Turbo Spin Echo
GE: Fast Spin Echo
Diffusion Weighted Imaging
In DWI contrast is created based on how far water molecules can randomly disperse due to Brownian motion. This tells us about the structure of tissues at the cellular level.