Title :
Non-rigid summing of gated PET via optical flow
Author :
Klein, G.J. ; Reutter, B.W. ; Huesman, R.H.
Author_Institution :
Lawrence Berkeley Nat. Lab., California Univ., Berkeley, CA, USA
Abstract :
A method for summing together datasets from gated cardiac PET acquisitions is described. Optical flow techniques are used to accurately model non-rigid motion present during the cardiac cycle so that a one-to-one mapping is found between each voxel of two gated volumes. Using this mapping, image summing can take place, producing a composite dataset with improved statistics and reduced motion-induced blur. Results using a data from a gated cardiac study on a dog are presented
Keywords :
positron emission tomography; cardiac cycle; composite dataset; datasets; dog; gated PET; gated cardiac PET acquisitions; image summing; nonrigid motion; nonrigid summing; one-to-one mapping; optical flow; reduced motion-induced blur; voxel; Heart; Image motion analysis; Image reconstruction; Isotopes; Motion estimation; Optical attenuators; Optical filters; Optical imaging; Pixel; Positron emission tomography;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591692
