Parcellation of human inferior parietal lobule based on diffusion MRI.

Parcellation of human inferior parietal lobule based on diffusion MRI.
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基于扩散 MRI 的人顶下小叶分割。

DOI:
10.1109/embc.2012.6346650
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发表时间:
2012
期刊:
Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
影响因子:
--
通讯作者:
Grabowski,Thomas
Grabowski,Thomas
中科院分区:
--
文献类型:
--
作者:
Soran,Bilge;Xie,Zhiyong;Tungaraza,Rosalia;Lee,Su-In;Shapiro,Linda;Grabowski,Thomas

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大脑某一区域的功能可能受到其解剖学联系的限制。下顶叶(IPL)是大脑皮层一个功能异质性显著的区域,涉及视觉空间注意、记忆、语言和数学认知。在这项工作中,应用了规范化图切聚类算法的三种不同变体,基于从扩散张量神经束成像中获得的解剖连通性估计,将活体的IPL分割为组成区域。对三种不同算法的结果进行了比较,并提出了一种新的度量标准,通过比较标准地图集区域来衡量单个包裹的质量。在这项19名受试者的研究中,平均有64%与Juelich脑图谱重叠。
The function of a brain region can be constrained by its anatomical connections. The Inferior Parietal Lobule (IPL) is a cortical region with marked functional heterogeneity, involved in visuospatial attention, memory, language and mathematical cognition. In this work three different variants of the normalized graph-cut clustering algorithm were applied to obtain a parcellation of the IPL of living subjects into component regions based on the estimate of anatomical connectivity obtained from diffusion tensor tractography. Results over the three different algorithms were compared and a new metric proposed to measure the quality of individual parcellations by comparing to standard atlas regions. In this study of 19 subjects, an average of 64% overlap with the Juelich brain atlas was observed.
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发表时间: 2010-11-01
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影响因子: 3.7
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