Article Figures & Data
Figures
- FIGURE 1.
Image reconstruction from acquisition data by added-projection-data process and by added-reconstructed-image process. SC = scatter correction; AC = attenuation correction; RR = resolution recovery.
- FIGURE 2.
Profile and VOI setting: FWHM (A) and %CV (B).
- FIGURE 3.
Comparison of FWHM results: added-projection-data process (A) and added-reconstructed-image process (B). Results did not clearly differ among CRRA images acquired with each rotation parameter and SS mode. rot = rotations.
- FIGURE 4.
%CV: added-projection-data process (A) and added reconstruction image process (B) in which images were summed after each frame was reconstructed in independent process. %CV obtained by CRRA with added-projection-data process increased with increase in acquisition rotation speed. *P < 0.05 vs. SS mode and CRRA. rot = rotations.
- FIGURE 5.
SBR comparison: added-projection-data process (A) and added-reconstructed-image process (b). SBR did not change with increase in acquisition rotation speed with added-projection-data process. However, SBR obtained by CRRA with added-reconstructed-image process was lower than that obtained with SS mode. rot = rotations.
- FIGURE 6.
Reconstructed images of striatal phantom using CRRA and SS mode: added-projection-data process (A) and added-reconstructed-image process (B). Uniformity of background area decreased with faster rotation speed. rot = rotations.
Tables
Difference 0.50 rpm × 30 rot 0.17 rpm × 10 rot 0.10 rpm × 6 rot 0.05 rpm × 3 rot Mean Between CRRA with added-projection-data process and SS mode 5.2 4.0 11.3 5.0 6.3 Between CRRA with added-reconstructed-image process and SS mode 9.9 19.5 15.8 16.1 15.3 rot = rotations.
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