Dependence of PET-Based Respiratory Trace Quality on Sinogram-Space Compression
Correlation coefficients* | |||||
Radial bins | Projections | resp_le | resp_pca | resp_le+sens | resp_pca+sens |
1 | 1 | 0.25 ± 0.30 | 0.25 ± 0.30 | 0.51 ± 0.29 | 0.52 ± 0.29 |
11 | 1 | 0.30 ± 0.32 | 0.33 ± 0.34 | 0.70 ± 0.19 | 0.73 ± 0.14 |
22 | 1 | 0.34 ± 0.34 | 0.40 ± 0.34 | 0.63 ± 0.25 | 0.71 ± 0.17 |
44 | 1 | 0.31 ± 0.32 | 0.36 ± 0.34 | 0.56 ± 0.30 | 0.67 ± 0.24 |
44 | 3 | 0.42 ± 0.34 | 0.56 ± 0.34 | 0.60 ± 0.24 | 0.74 ± 0.21 |
44 | 6 | 0.39 ± 0.32 | 0.58 ± 0.33 | 0.54 ± 0.25 | 0.71 ± 0.25 |
44 | 9 | 0.37 ± 0.30 | 0.56 ± 0.34 | 0.46 ± 0.29 | 0.69 ± 0.26 |
↵* Reference: resp_mr.
Shown values are averaged over entire patient population (mean ± SD).