Title :
Forward deformation of PET volumes using material constraints
Author_Institution :
Centre for Functional Imaging, Lawrence Berkeley Nat. Lab., CA
Abstract :
A method for non-rigidly deforming 3D PET datasets is described. The method uses a Lagrangian motion field description and a forward deformation mapping which conserves total voxel intensities. To regularize the deformation, a large-deformation isotropic strain energy function is used that models the material properties of cardiac tissue. The method is applied to motion compensation in PET to combine different time frames, or gates, of a cardiac sequence
Keywords :
cardiology; image sequences; medical image processing; motion compensation; positron emission tomography; Lagrangian motion field description; cardiac sequence; cardiac tissue material properties; diagnostic nuclear medicine; forward deformation mapping; large-deformation isotropic strain energy function; medical diagnostic imaging; nonrigidly deforming 3D PET datasets; time frames; total voxel intensities; Biomedical engineering; Biomedical imaging; Computed tomography; Conferences; Heart; Humans; Imaging phantoms; Optical imaging; Positron emission tomography; Torso;
Conference_Titel :
Biomedical Image Analysis, 1998. Proceedings. Workshop on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8460-7
DOI :
10.1109/BIA.1998.692394
