Glossary

Chimap

Magnetic susceptibility map derived from phase or quantitative susceptibility mapping (QSM) reconstruction

FMW_exrate

Exchange rate map in Free <-> Myelin Water analysis

FW_M0map

Free Water proton density (M0) map

FW_R1map

Free Water longitudinal relaxation rate (R1) map

IAW_R2starmap

Intra-Axonal Water effective transverse relaxation rate (R2*) map

FW_T1map

Free Water longitudinal relaxation time (T1) map

FitMask

Mask indicating voxels with successful quantitative parameter fitting

M0map

Proton density (M0) map derived from GRE or similar acquisitions

M0map_S0

Proton density map derived from multi-echo VFA T1 mapping (S0)

M0map_echo1

Proton density map from first echo of GRE sequence

MP2RAGE_T1w

T1-weighted MP2RAGE image generated from the MP2RAGE sequence

MWFmap

Myelin water fraction map estimated from multi-echo data

MW_M0map

Myelin Water proton density (M0) map

MW_R2starmap

Myelin Water effective transverse relaxation rate (R2*) map

R1map

Longitudinal relaxation rate (R1) map (R1 = 1/T1)

R1map_S0

S0-based longitudinal relaxation rate (R1) map

R2starmap

Effective transverse relaxation rate (R2* = 1/T2*) map

S0map

Signal extrapolated to TE = 0 from multi-echo imaging

T2starmap

Effective transverse relaxation time (T2*) map

TB1map_GRE

Relative Transmit field (B1+) map co-registered to the specific anatomical data of interest space

TB1map_anat

Anatomical image that comes with the transmit field (B1+) map

TB1map_angle

Flip angle map from transmit B1+ field mapping

brainmask

Binary mask of brain tissue

ME4Dmag

4D magnitude image stack from a multi-echo GRE acquisition

ME4Dphase

4D phase image stack from a multi-echo GRE acquisition

fieldmap

B0 field map representing static magnetic field inhomogeneities

localfmask

Local field mask for susceptibility mapping

meanChimap

Mean susceptibility (QSM) map across echoes or repetitions

meanR2starmap

Mean R2* map averaged across repeats or echoes

rawINV1

Raw magnitude image of the first MP2RAGE inversion before processing

rawINV2

Raw magnitude image of the second MP2RAGE inversion before processing

rawMEGRE

Raw multi-echo gradient echo images before processing

rawMEVFA

Raw multi-echo variable flip angle (VFA) data before processing

rawMEMPM

Raw multi-echo multi-parametric mapping (MPM) data before processing

rawTB1map_anat

Raw anatomical B1+ mapping data before processing

rawTB1map_famp

Raw flip angle map from B1+ mapping before processing

rawUNIT1

Raw uniform T1-weighted image from MP2RAGE before processing

syntheticT1

Synthetic T1-weighted image calculated from quantitative maps

unwrapped

Phase-unwrapped multi-echo phase image used for QSM or fieldmap estimation