Neuroimaging Data Processing/Glossary
BOLD
[edit | edit source]blood-oxygen-level-dependent
EPI
[edit | edit source](gradient-echo) echoplanar imaging
fMRI
[edit | edit source]functional magnetic resonance imaging
MRI
[edit | edit source]magnetic resonance imaging
rotation
[edit | edit source]turning the entire image around an axis in space: x-y, x-z, y-z (in the absence of translation)
TE
[edit | edit source]echo time
TR
[edit | edit source]repetition time
translation
[edit | edit source]moving the entire image volume along an axis in space: x-,y-, and z-axes (in the absence of rotation)
volume
[edit | edit source]one 3-dimensional image, i.e., one timepoint in a 4-dimensional fMRI image
voxel
[edit | edit source]one 3-dimensional unit (length × width × height) in a 3-dimensional image (analogous to a pixel in a 2-dimensional image)