Our tract atlas was annotated manually using diffusion MRI data from the MGH Connectom scanner, collected as part of the young adult Human Connectome Project. The following images show 42 tracts and average microstructural measures along each tract (FA: fractional anisotropy; RD: radial diffusivity; AD: axial diffusivity).
For details on the annotation protocol used to produce this atlas, and how the atlas can be used in TRACULA to reconstruct the same tracts automatically from lower-quality diffusion MRI data, see: Using diffusion MRI data acquired with ultra-high gradients to improve tractography in routine-quality data (2021). Maffei C, Lee C, Planich M, Ramprasad M, Ravi N, Trainor D, Urban Z, Kim M, Jones R, Henin A, Hofmann S, Pizzagalli D, Auerbach R, Gabrieli J, Whitfield-Gabrieli S, Greve D, Haber N, Yendiki A, NeuroImage 245:118706.
Anterior commissure
Corpus callosum – body – central
Corpus callosum – body – parietal
Corpus callosum – body – prefrontal
Corpus callosum – body – premotor
Corpus callosum – body – temporal
Corpus callosum – genu
Corpus callosum – rostrum
Corpus callosum – splenium
Middle cerebellar peduncle
Arcuate fasciculus – left
Arcuate fasciculus – right
Acoustic radiation – left
Acoustic radiation – right
Anterior thalamic radiations – left
Anterior thalamic radiations – right
Cingulum bundle – dorsal – left
Cingulum bundle – dorsal – right
Cingulum bundle – ventral – left
Cingulum bundle – ventral – right
Corticospinal tract – left
Corticospinal tract – right
Extreme capsule – left
Extreme capsule – right
Frontal aslant tract – left
Frontal aslant tract – right
Fornix – left
Fornix – right
Inferior longitudinal fasciculus – left
Inferior longitudinal fasciculus – right
Midlle longitudinal fasciculus – left
Middle longitudinal fasciculus – right
Optic radiation – left
Optic radiation – right
Superior longitudinal fasciculus I – left
Superior longitudinal fasciculus I – right
Superior longitudinal fasciculus II – left
Superior longitudinal fasciculus II – right
Superior longitudinal fasciculus III – left
Superior longitudinal fasciculus III – right
Uncinate fasciculus – left
Uncinate fasciculus – right
Anterior commissure
Corpus callosum – body – central
Corpus callosum – body – parietal
Corpus callosum – body – prefrontal
Corpus callosum – body – temporal
Corpus callosum – body – premotor
Corpus callosum – splenium
Corpus callosum – genu
Corpus callosum – rostrum
Middle cerebellar peduncle
Arcuate fasciculus – left
Arcuate fasciculus – right
Acoustic radiation – left
Acoustic radiation – right
Anterior thalamic radiations – left
Anterior thalamic radiations – right
Cingulum bundle – dorsal – left
Cingulum bundle – dorsal – right
Cingulum bundle – ventral – left
Cingulum bundle – ventral – right
Corticospinal tract – left
Corticospinal tract – right
Extreme capsule – left
Extreme capsule – right
Frontal aslant tract – left
Frontal aslant tract – right
Fornix – left
Fornix – right
Inferior longitudinal fasciculus – left
Inferior longitudinal fasciculus – right
Middle longitudinal fasciculus – left
Middle longitudinal fasciculus – right
Optic radiation – left
Optic radiation – right
Superior longitudinal fasciculus I – left
Superior longitudinal fasciculus I – right
Superior longitudinal fasciculus II – left
Superior longitudinal fasciculus II – right
Superior longitudinal fasciculus III – left
Superior longitudinal fasciculus III – right
Uncinate fasciculus – left
Uncinate fasciculus – right
Tract annotation team
Chiara Maffei
Robert Jones
Mingu Kim
Christine Lee
Michael Planich
Manisha Ramprasad
Nivedita Ravi
Daniel Trainor
Zoi Urban
Anastasia Yendiki
Special thanks to Suzanne Haber for neuroanatomic guidance.