PMID- 9572507
OWN - NLM
STAT- MEDLINE
DCOM- 19980616
LR  - 20190726
IS  - 0031-9155 (Print)
IS  - 0031-9155 (Linking)
VI  - 43
IP  - 4
DP  - 1998 Apr
TI  - Intercomparison of four reconstruction techniques for positron volume imaging 
      with rotating planar detectors.
PG  - 823-34
AB  - Four reconstruction techniques for positron volume imaging have been evaluated 
      for scanners based on rotating planar detectors using measured and simulated 
      data. The four techniques compared are backproject then filter (BPF), the 3D 
      reprojection (3D RP) method for 3D filtered backprojection (FBP), Fourier 
      rebinning (FORE) in conjunction with 2D FBP (FORE + 2D FBP) and 3D ordered 
      subsets expectation maximization (3D OSEM). The comparison was based on image 
      resolution and on the trade-off between contrast and noise. In general FORE + 2D 
      FBP offered a better contrast-noise trade-off than 3D RP, whilst 3D RP offered a 
      better trade-off than BPF. Unlike 3D RP, FORE + 2D FBP did not suffer any 
      contrast degradation effect at the edges of the axial field of view, but was 
      unable to take as much advantage from high-accuracy data as the other methods. 3D 
      OSEM gave the best contrast at the expense of greater image noise. BPF, which 
      demonstrated generally inferior contrast-noise behaviour due to use of only a 
      subset of the data, gave more consistent spatial resolution over the field of 
      view than the projection-data based methods, and was best at taking full 
      advantage of high-accuracy data.
FAU - Reader, A J
AU  - Reader AJ
AD  - Joint Department of Physics, Institute of Cancer Research, Royal Marsden NHS 
      Trust, Sutton, Surrey, UK.
FAU - Visvikis, D
AU  - Visvikis D
FAU - Erlandsson, K
AU  - Erlandsson K
FAU - Ott, R J
AU  - Ott RJ
FAU - Flower, M A
AU  - Flower MA
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Phys Med Biol
JT  - Physics in medicine and biology
JID - 0401220
RN  - 0 (Sodium Radioisotopes)
SB  - IM
MH  - Computer Simulation
MH  - Equipment Design
MH  - Fourier Analysis
MH  - Gamma Cameras
MH  - Image Processing, Computer-Assisted/instrumentation/*methods
MH  - Models, Theoretical
MH  - *Phantoms, Imaging
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Sodium Radioisotopes
MH  - Tomography, Emission-Computed/*instrumentation/*methods
EDAT- 1998/05/08 00:00
MHDA- 1998/05/08 00:01
CRDT- 1998/05/08 00:00
PHST- 1998/05/08 00:00 [pubmed]
PHST- 1998/05/08 00:01 [medline]
PHST- 1998/05/08 00:00 [entrez]
AID - 10.1088/0031-9155/43/4/011 [doi]
PST - ppublish
SO  - Phys Med Biol. 1998 Apr;43(4):823-34. doi: 10.1088/0031-9155/43/4/011.