Fine-scale motion detection using intrinsic list mode PETinformation
Klein, G.J.
Reutter, B.W.
Botvinick, E.H.
Budinger, T.F.
Huesman, R.H.
Lawrence Livermore Nat. Lab., Berkeley, CA;
This paper appears in: Mathematical Methods in Biomedical Image Analysis, 2001. MMBIA 2001. IEEE Workshop on
Publication Date: 2001
On page(s): 71-78
Meeting Date: 12/09/2001 - 12/10/2001
Location: Kauai, HI, USA
ISBN: 0-7695-1336-0
References Cited: 13
INSPEC Accession Number: 7197897
Digital Object Identifier: 10.1109/MMBIA.2001.991701
Current Version Published: 2002-08-07
Abstract
Motion during extended nuclear medicine scanning sequences can
significantly degrade the quality of reconstructed images. Correction
for this motion requires an accurate motion sensor. We describe a
technique to detect motion in list mode positron emission tomography
(PET) imagery that relies upon information from the list mode data
stream itself. In studies where the tracer contrast to background
contrast is high, the axial component of the center of mass (CM) for
tomograph events can serve as an accurate indicator of motion. Because
the method does not require reconstruction of images, it may be applied
to motion detection at a very fine temporal scale. The technique has
been applied to the detection of motion due to the respiratory cycle in
cardiac PET imaging
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