Document Detail

Implementation of continuous 3D whole-body PET scanning using on-the-fly Fourier rebinning.
MedLine Citation:
PMID:  12200933     Owner:  NLM     Status:  MEDLINE    
The continuous scanning mode in three-dimensional (3D) whole-body PET studies has the advantage of axial sensitivity uniformity over the majority of the axial FOV. However, this scan mode requires large data handling compared to conventional discrete scans. In this work, we have implemented and evaluated a new continuous 3D scan method using 'on-the-fly' Fourier rebinning. In this method, sinograms for the pair of rings are added in real-time into the sinograms of the incremented ring pairs by moving the bed axially one detector width at a time. For an N-ring scanner, 2N--1 sinograms are transferred to a host computer at each bed position and rebinned into direct two-dimensional (2D) sinograms using Fourier rebinning. Phantom and human studies showed that the axial image uniformity is achieved without degrading the axial resolution. This method can minimize the time for off-line data processing and makes the continuous 3D scan more feasible in clinical whole-body studies.
Keishi Kitamura; Kazumi Tanaka; Tomohiko Sato
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Physics in medicine and biology     Volume:  47     ISSN:  0031-9155     ISO Abbreviation:  Phys Med Biol     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-08-30     Completed Date:  2003-03-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401220     Medline TA:  Phys Med Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  2705-12     Citation Subset:  IM    
Shimadzu Corporation, 1 Nishinokyo-kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan.
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MeSH Terms
Fourier Analysis
Image Enhancement / methods*
Imaging, Three-Dimensional / methods*
Phantoms, Imaging
Reproducibility of Results
Sensitivity and Specificity
Signal Processing, Computer-Assisted*
Stochastic Processes
Tomography, Emission-Computed / instrumentation,  methods*
Whole-Body Counting / instrumentation,  methods*

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