Cortical Sulcal Atlas Construction Using a Diffeomorphic Mapping Approach

摘要：

We present a geometric approach for constructing shape atlases of sulcal curves on the human cortex. Sulci and gyri are represented as continuous open curves in R3, and their shapes are studied as elements of an infinite-dimensional sphere. This shape manifold has some nice properties – it is equipped with a Riemannian L2 metric on the tangent space and facilitates computational analyses and correspondences between sulcal shapes. Sulcal mapping is achieved by computing geodesics in the quotient space of shapes modulo rigid rotations and reparameterizations. The resulting sulcal shape atlas is shown to preserve important local geometry inherently present in the sample population. This is demonstrated in our experimental results for deep brain sulci, where we integrate the elastic shape model into surface registration framework for a population of 69 healthy young adult subjects

作者: Shantanu H.Joshi ArthurW.Toga Ryan P.Cabeen Bo Sun Anand A.Joshi Boris Gutman Alen Zamanyan Shruthi Chakrapani Ivo Dinov Roger P.Woods

作者单位: Laboratory of Neuro Imaging, University of California, Los Angeles CA 90095, USA Research Center for Sectional and Imaging Anatomy, Shandong University School ofMedicine, 44 Wenhua

会议类型: 国际会议

会议名称: The 13th International Conference on Medical Image Computing and Computer-Assisted Intervention(第13届医学影像计算与计算机辅助介入国际会议 MICCAI 2010)

会议地点: 北京

会议语种:英文

页码: 357-366

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）