Multimodal surface matching with higher-order smoothness constraints.
Multimodal surface matching with higher-order smoothness constraints.
复制标题
DOI：
10.1016/j.neuroimage.2017.10.037
复制
发表时间：
2018-02-15
期刊：
影响因子：
5.7
通讯作者：
Rueckert D
中科院分区：
文献类型：
--
作者：
Robinson EC;Garcia K;Glasser MF;Chen Z;Coalson TS;Makropoulos A;Bozek J;Wright R;Schuh A;Webster M;Hutter J;Price A;Cordero Grande L;Hughes E;Tusor N;Bayly PV;Van Essen DC;Smith SM;Edwards AD;Hajnal J;Jenkinson M;Glocker B;Rueckert D
在脑成像中，皮质表面的准确对齐是组研究的统计灵敏度和空间定位的基础;并且基于皮质表面的对齐已被普遍接受为在对齐皮质区域方面上级基于体积的方法。然而，人类受试者有相当大的变化，在皮质折叠，并在相对于这些褶皱的功能区的位置。这使得皮层区域的对齐成为一个具有挑战性的问题。Multimodal Surface Matching（MSM）工具是一种灵活的球面配准方法，可根据各种不同的特征实现曲面的精确配准。使用MSM，我们以前已经表明，驾驶跨学科表面对齐，使用区域功能，如静息状态网络和髓鞘地图，提高组任务功能磁共振成像统计和地图的清晰度。然而，MSM的正则化函数的初始实现并没有均匀地惩罚所有形式的表面变形。在某些情况下，这允许峰值失真超过神经生物学上合理的限制，除非正则化强度增加到阻止算法完全最大化表面对齐的水平。在这里，我们提出并实施了一个新的正则化惩罚，来自物理相关的应变（变形）能量方程，并证明其使用导致改进和更强大的多模态成像数据的对齐。此外，由于球形翘曲纳入投影失真是不可避免的映射时，从一个回旋的皮质表面的领域，我们还提出了约束，强制执行皮质解剖结构的平滑变形。我们测试了这种方法对新生儿（出生在月经后31至43周之间）皮质发育纵向建模的影响，并证明了所提出的方法增加了畸变场的生物可解释性，并提高了基于人口的分析相对于其他球形方法的统计学意义。
In brain imaging, accurate alignment of cortical surfaces is fundamental to the statistical sensitivity and spatial localisation of group studies; and cortical surface-based alignment has generally been accepted to be superior to volume-based approaches at aligning cortical areas. However, human subjects have considerable variation in cortical folding, and in the location of functional areas relative to these folds. This makes alignment of cortical areas a challenging problem. The Multimodal Surface Matching (MSM) tool is a flexible, spherical registration approach that enables accurate registration of surfaces based on a variety of different features. Using MSM, we have previously shown that driving cross-subject surface alignment, using areal features, such as resting state-networks and myelin maps, improves group task fMRI statistics and map sharpness. However, the initial implementation of MSM’s regularisation function did not penalize all forms of surface distortion evenly. In some cases, this allowed peak distortions to exceed neurobiologically plausible limits, unless regularisation strength was increased to a level which prevented the algorithm from fully maximizing surface alignment. Here we propose and implement a new regularisation penalty, derived from physically relevant equations of strain (deformation) energy, and demonstrate that its use leads to improved and more robust alignment of multimodal imaging data. In addition, since spherical warps incorporate projection distortions that are unavoidable when mapping from a convoluted cortical surface to the sphere, we also propose constraints that enforce smooth deformation of cortical anatomies. We test the impact of this approach for longitudinal modelling of cortical development for neonates (born between 31 and 43 weeks of post-menstrual age) and demonstrate that the proposed method increases the biological interpretability of the distortion fields and improves the statistical significance of population-based analysis relative to other spherical methods.
登录
查看更多内容
影响因子：
5.7
作者：
Fischl, B;Sereno, MI;Dale, AM
通讯作者：
Dale, AM
DOI：
10.1523/jneurosci.2180-11.2011
发表时间：
2011-08-10
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Glasser MF;Van Essen DC
通讯作者：
Van Essen DC
人类视觉皮层中视网膜区域和髓磷脂图之间的对应关系。
影响因子：
5.7
作者：
Abdollahi RO;Kolster H;Glasser MF;Robinson EC;Coalson TS;Dierker D;Jenkinson M;Van Essen DC;Orban GA
通讯作者：
Orban GA
影响因子：
5.7
作者：
Harrison SJ;Woolrich MW;Robinson EC;Glasser MF;Beckmann CF;Jenkinson M;Smith SM
通讯作者：
Smith SM
影响因子：
5.7
作者：
Conroy, Bryan R.;Singer, Benjamin D.;Guntupalli, J. Swaroop;Ramadge, Peter J.;Haxby, James V.
通讯作者：
Haxby, James V.