DocumentCode :
1064992
Title :
Normalisation of Histogrammed List Mode Data
Author :
Thielemans, Kris ; Morel, Christian ; Jacobson, Matthew W. ; Kaempf, Jerome H. ; Mustafovic, Sanida
Author_Institution :
Hammersmith Imanet Ltd., London
Volume :
55
Issue :
1
fYear :
2008
Firstpage :
543
Lastpage :
551
Abstract :
Many PET scanners nowadays have the possibility to record event-by-event information, known as list mode data. This has the advantage of keeping the data in the highest possible resolution (both temporal and spatial). In most cases, list mode data are then binned into sinogram format before reconstruction. In this paper, we discuss at which stage normalisation factors should be introduced. It is shown that noise is greatly reduced by performing the normalisation after the binning. We illustrate this with acquired and simulated data for the quad HiDAC camera.
Keywords :
image scanners; medical image processing; positron emission tomography; PET scanners; quad HiDAC camera; sinogram format; stage normalisation factors; Animals; Cameras; Detectors; Event detection; Jacobian matrices; Medical services; Noise reduction; Positron emission tomography; Spatial resolution; Statistical analysis; Data normalisation; PET; list mode;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2007.914207
Filename :
4448544
Link To Document :
بازگشت