|
FIG 1. Percentages of different types of images showing myelination in the gray matter nuclei and white matter tracts identified in this study at <30 weeks gestational age, between 30 and 36 weeks gestational age, and between 37 and 42 weeks gestational age. CN, region of gracile and cuneate nuclei; GCF, gracile and cuneate fasciculi; VN, vestibular nuclei; Vermis, cerebellar vermis; ICP, inferior cerebellar peduncles; SCP, superior cerebellar peduncles; Dentate, dentate nucleus of the cerebellum; MLF, medial longitudinal fasciculus; MGB, medial geniculate bodies; LGB, lateral geniculate bodies; STN, subthalamic nuclei; Olives, inferior olivary nuclei; VLN, ventrolateral nuclei of the thalamus; DSCP, decussation of the superior cerebellar peduncles; ML, medial lemnisci; LL, lateral lemnisci; IC, inferior colliculi; CS, corticospinal tracts of the precentral and postcentral gyri; PLIC, posterior limb of the internal capsule; CR, corona radiata; T1, T1-weighted conventional spin-echo MR images; IR, inversion recovery fast spin-echo MR images; T2, T2-weighted fast spin-echo MR images.
A, Graph illustrates the percentages of T1-weighted conventional spin-echo, inversion recovery fast spin-echo, and T2-weighted fast spin-echo MR images showing myelination at <30 weeks gestational age.
B, Graph illustrates the percentages of T1-weighted conventional spin-echo, inversion recovery fast spin-echo, and T2-weighted fast spin-echo MR images showing myelination between 30 and 36 weeks gestational age.
C, Graph illustrates the percentages of T1-weighted conventional spin-echo, inversion recovery fast spin-echo, and T2-weighted fast spin-echo MR images showing myelination between 37 and 42 weeks gestational age.
|