Patterns of the fetal brain structures growth: MRI study

MRI study of the human fetal brain is a complicated, important and difficult scientific problem, which has an application in clinical practice. Meanwhile, the boundaries of individual geometric characteristics of fetal brain structures are still blurred and require a clarification. A sample of 105 participants with healthy fetal brain, is considered. It is shown that the relationship between the growth of individual brain structure sizes (cerebral fronto-occipital diameter, cerebral biparietal di-ameter, corpus callosum length, transverse cerebellum diameter, vermis height) differs depending on the trimester. The advantage of linear dependence for the growth of brain structures for each of the considered trimesters was demonstrated versus power-law regression. The resulting growth models for each trimester will make it possible to determine more accurately whether a case cor-responds to the norm using a combination of several linear dimensions at once.