MP-RAGE compared to 3D IR SPGR for Optimal T1 Contrast and Image Quality in the Brain at 3T
Witte R, Bernstein M, Watson R, Ward H, Rydberg C, Lin C
Mayo Clinic College of Medicine
We compare two commonly-used T1-weighted volumetric pulse sequences (MP-RAGE and IR-SPGR) at 3T on a series of ten healthy volunteers. The acquisition protocols are adjusted so that the scan times are both 7:23. SNR measurements in both grey and white matter are reported, as is the grey-white contrast to noise ratio. Results of a blinded review by radiologists on qualitative features including image sharpness and artifact level is also provided. Both pulse sequence techniques performed well, but a systematic preference for MP-RAGE was observed.