Broca's area is composed of the pars opercularis(PO)and the pars triangularis(PTR)of the inferior frontal gyrus,which was separated by the anterior ascending ramus of lateral sulcus(aals)and the horizontal ascendi...Broca's area is composed of the pars opercularis(PO)and the pars triangularis(PTR)of the inferior frontal gyrus,which was separated by the anterior ascending ramus of lateral sulcus(aals)and the horizontal ascending ramus of the lateral sulcus(hals).The morphometry of these two sulci may have potential effects on the various functions of Broca's area.To explore the morphology variation,hemispheric and gender difference of these two sulci,so as to enable better understanding of their patterns and the functions of the Broca's area.BrainVISA was used to reconstruct and parameterize these two sulci with 3D MR images of 90 healthy right-handed subjects.展开更多
The cerebellum,resided in the posterior cranialfossa,is a critical structure.The development of the cerebellum spans a long period and undergoes a dramatic change in its morphological structure.The protracted cerebell...The cerebellum,resided in the posterior cranialfossa,is a critical structure.The development of the cerebellum spans a long period and undergoes a dramatic change in its morphological structure.The protracted cerebellar development makes it particularly vulnerable to a wide range of pathologic injuries,especially during the early fetal period.This study characterizes the growth of human fetal cerebellum during the early second trimester.Using 7.0T high-resolution MR images,we manually segmented the fetal cerebellum of 35 specimens with gestational ages ranging from 15 to 22 weeks.V olume measurements and shape analysis were performed to quantitatively evaluate the global and regional cerebellar growth.展开更多
文摘Broca's area is composed of the pars opercularis(PO)and the pars triangularis(PTR)of the inferior frontal gyrus,which was separated by the anterior ascending ramus of lateral sulcus(aals)and the horizontal ascending ramus of the lateral sulcus(hals).The morphometry of these two sulci may have potential effects on the various functions of Broca's area.To explore the morphology variation,hemispheric and gender difference of these two sulci,so as to enable better understanding of their patterns and the functions of the Broca's area.BrainVISA was used to reconstruct and parameterize these two sulci with 3D MR images of 90 healthy right-handed subjects.
文摘The cerebellum,resided in the posterior cranialfossa,is a critical structure.The development of the cerebellum spans a long period and undergoes a dramatic change in its morphological structure.The protracted cerebellar development makes it particularly vulnerable to a wide range of pathologic injuries,especially during the early fetal period.This study characterizes the growth of human fetal cerebellum during the early second trimester.Using 7.0T high-resolution MR images,we manually segmented the fetal cerebellum of 35 specimens with gestational ages ranging from 15 to 22 weeks.V olume measurements and shape analysis were performed to quantitatively evaluate the global and regional cerebellar growth.
