Tensor-based morphometry with stationary velocity field diffeomorphic registration: application to ADNI.
Tensor-based morphometry with stationary velocity field diffeomorphic registration: application to ADNI.
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DOI：
10.1016/j.neuroimage.2010.02.061
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发表时间：
2010-07-01
期刊：
影响因子：
5.7
通讯作者：
Olmos, Salvador
中科院分区：
文献类型：
--
作者：
Bossa, Matias;Zacur, Ernesto;Olmos, Salvador
Tensor-based morphometry (TBM) is an analysis technique where anatomical information is characterized by means of the spatial transformations mapping a customized template with the observed images. Therefore, accurate inter-subject non-rigid registration is an essential prerequisite for both template estimation and image warping. Subsequent statistical analysis on the spatial transformations is performed to highlight voxel-wise differences. Most of previous TBM studies did not explore the influence of the registration parameters, such as the parameters defining the deformation and the regularization models. In this work performance evaluation of TBM using stationary velocity field (SVF) diffeomorphic registration was performed in a subset of subjects from Alzheimer’s Disease Neuroimaging Initiative (ADNI) study. A wide range of values of the registration parameters that define the transformation smoothness and the balance between image matching and regularization were explored in the evaluation. The proposed methodology provided brain atrophy maps with very detailed anatomical resolution and with a high significance level compared with results recently published on the same data set using a non-linear elastic registration method.
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