Single-Coil Two-Fold Accelerated Spin-Echo Phase-SENSE Imaging of the Rodent Brain at 9.4T

Daniel S. Shefchik¹, Andrzej Jesmanowicz¹, Matthew Budde², Andrew S. Nencka¹

The phase of reconstructed spin echo images is generally zero when the echo is centered and is usually discarded upon reconstruction. However, phase can be manipulated through shifting Fourier encoding by one half pixel in the phase encoding direction to introduce a linear phase gradient that can be used for spatial encoding. This spatial encoding, similar to coil sensitivities in SENSE, enables proper unaliasing of an accelerated image with even a single coil. The phase-SENSE method is demonstrated with a spin echo pulse sequence and a single-channel receiver at 9.4T on a rodent brain.