Table 1.

Comparison of myelination milestones between the spatio-temporal atlas (Myelin atlas) and the qualitative description^4,21.

Region	structures	Counsell et al.	Barkovich et al.	Myelin atlas
Brainstem	SCP, DSCP, IC, LL, ML, MLF, VN	25–30 weeks GA	25–30 weeks GA	≤29 weeks GA
Deep brain	VLN	25 weeks GA	—	≤29 weeks GA
Deep brain	STN	28 weeks GA	—	≤29 weeks GA
Deep brain	PLIC	40 weeks GA	40 weeks GA	39–40 weeks GA

The milestone refers to first time-point in gestation when the myelin is identified in a new site. The full names of the structures are provided in the section “Segmentation Protocol”.