This research compares submarine morphology with seismic reflection profiles as they manifest tectonics in a rapidly transform continental margin (Monterey Bay,California).We study modern submarine processes integrati...This research compares submarine morphology with seismic reflection profiles as they manifest tectonics in a rapidly transform continental margin (Monterey Bay,California).We study modern submarine processes integrating seismic reflection profiles interpretation,slope stability and liquefaction potential analyses and geomorphic change obtained by using high-resolution multibeam展开更多
文摘This research compares submarine morphology with seismic reflection profiles as they manifest tectonics in a rapidly transform continental margin (Monterey Bay,California).We study modern submarine processes integrating seismic reflection profiles interpretation,slope stability and liquefaction potential analyses and geomorphic change obtained by using high-resolution multibeam
文摘目的探讨伴脑室周围白质损伤(periventricular white matter lesions,PWML)的双侧痉挛型脑瘫(bilateral spastic cerebral palsy,BSCP)儿童的脑皮层形态学变化。材料与方法收集2019年4月至2021年9月经临床确诊19例伴PWML的BSCP儿童及20例对照组儿童的资料,所有儿童均行高分辨率3D-T1WI结构像扫描,并对BSCP儿童行粗大运动功能评估。利用基于体素的形态学分析(voxel-based morphometric analysis,VBM)检测两组间灰质体积差异脑区。基于表面的形态学分析(surface-based morphometric analysis,SBM)检测组间皮层厚度改变。灰质体积和皮层厚度组间差异采用双样本t检验分析,多重比较校正采用FDR方法。结果与对照组比较,BSCP组双内侧前额叶、运动前区、中扣带回、尾状核、丘脑及右背外侧前额叶灰质体积减小(P<0.05,FDR校正),且右内侧前额叶平均灰质体积与粗大运动功能分级系统(gross motor function classification system,GMFCS)分级呈负相关(r=−0.623,P=0.004)。双内侧前额叶、左前扣带回、楔前叶、顶下小叶及右中扣带回皮层厚度变薄(P<0.05,FDR校正)。结论伴PWML的BSCP儿童在多个脑区的灰质体积和皮层厚度存在异常,反映了伴PWML的BSCP儿童脑微观结构的变化,为其潜在的病理生理学机制提供了影像学依据。
