Reproducibility of Diffusion MRI-Based Tractography in the Fetal Brain

Abstract

Degree of Overlapped Tracts between Repeated Scans at Three GA Stages (25, 30, and 35 Weeks). Four Fiber Tracts with Significant GA Dependence in WDSC were Displayed, Each in a Representative Subject with Median WDSC of the Corresponding GA Stage. The Blue Shadings Show the Difference among Two Repeated Scans. The Warm-Colored Shadings Show the Intersection between Two Repeated Scans, Colored by the Median of WDSC Value within the GA Group. (a-d) The Reproducibility for ATR, ILF, GCC, and BCC, Respectively. The Results Indicated that WDSC Values for the Four Fiber Tracts were Higher During Early Gestational Ages (≤30 Weeks). ATR, Anterior Thalamic Radiation; ILF, Inferior Longitudinal Fasciculus; GCC, Genu of the Corpus Callosum; BCC, Body of the Corpus Callosum. By et al. (2055-2062)