Spatial Correction of Echo Planar Imaging Deformation for Subject Specific Diffusion Tensor MRI Analysis

摘要：

Diffusion tensor magnetic resonance imaging (DT-MRI or DTI) is a specialized mode of MR1, used for functional imaging of the bodys internal structures.Echo planar imaging (EPI), the currently accepted protocol for acquiring DTI, suffers from severe image artefact, which complicates analysis of the data. We present our current progress in registration of T2-weighted MRI acquired with EPI and conventional protocols.The reported algorithm uses a multiresolution registration method with B-spline transform to correct for spatial deformation. This is the first step in registration of a full DTI dataset.It was found that direct application of a popular B-spline algorithm can correct some deformation in the images but further refinements are required to achieve more accurate results.

作者: Howard LAU Andrew J RUYS Paul CARTER Xiuying WANG Qing LI

作者单位: School of AMME,University of Sydney,NSW 2006,Australia Cochlear Ltd,Lane Cove,NSW 2066,Australia School of IT,University of Sydney,NSW 2006,Australia

会议类型: 国际会议

会议名称: 2008 IEEE International Symposium on IT in Medicine and Education(2008信息技术在医学和教育中的应用国际研讨会)(ITME 2008)

会议地点: 厦门

会议语种:英文

页码: 703-708

在线出版日期: 2008-12-12（万方平台首次上网日期，不代表论文的发表时间）