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Non-rigid summing of gated PET via optical flow

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3 Author(s)
Klein, G.J. ; Center for Functional Imaging, Lawrence Berkeley Lab., CA, USA ; Reutter, B.W. ; Huesman, R.H.

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 data from a gated cardiac study on a dog are presented

Published in:

Nuclear Science, IEEE Transactions on  (Volume:44 ,  Issue: 4 )

Date of Publication:

Aug 1997

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