Title :
Non-rigid registration of diffusion tensor MR images
Author :
Gee, J.C. ; Alexander, D.C. ; Rivera, M. ; Duda, J.T.
Author_Institution :
Dept. of Radiol., Pennsylvania Univ., Philadelphia, PA, USA
Abstract :
In this paper, we describe work on the non-rigid registration of diffusion tensor magnetic resonance (DT-MR) images. The registration task for DT-MR images is complicated by the fact that DTs contain orientational information, which is affected by the registration transformation. We discuss how to properly account for this effect in the implementation of a registration algorithm which fully exploits this important aspect of the DT to improve the anatomic accuracy of the registrations.
Keywords :
biodiffusion; biomedical MRI; image registration; medical image processing; tensors; anatomic accuracy; diffusion tensor MR images; imaged material microstructure; magnetic resonance imaging; medical diagnostic imaging; nonrigid registration; orientational information; registration algorithm; registration transformation; spatially warped image; voxel information; Anisotropic magnetoresistance; Computer science; Diffusion tensor imaging; Educational institutions; Eigenvalues and eigenfunctions; Ellipsoids; Radiology; Shape; Size measurement; Tensile stress;
Conference_Titel :
Biomedical Imaging, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7584-X
DOI :
10.1109/ISBI.2002.1029298
