MRI Technologistover 8 years ago

Diffusion-weighted imaging

Diffusion-weighted imaging (DWI) has great potential in body oncology, however, being a single-shot technology, the acquisition is relatively time consuming. Simultaneous Multi-Slice (SMS)-EPI deploys multiband pulses to excite multiple slices simultaneously. This excitation is combined with a blipped CAIPIRINHA approach during readout to reduce g-factor related SNR loss. As a result, an additional acquisition time reduction of up to 46% without compromising image quality compared to a standard GRAPPA 2 can be achieved with SMS 2 in combination with GRAPPA 2 in breast and abdominal scans. Prerequisite: Software version syngo MR E11C and SMS-EPI license.