Table 4 MDA-Ratios between the Vision and the mCT for each sphere size, reconstruction algorithm, and emission time.
From: Silicon-photomultiplier-based PET/CT reduces the minimum detectable activity of iodine-124
Sphere diameter (mm) | OSEM | OSEM-TOF | OSEM-TOF+PSF | All reconstructions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
30-min | 16-min | 8-min | 4-min | 30-min | 16-min | 8-min | 4-min | 30-min | 16-min | 8-min | 4-min | All emission times (mean ± SD) | |
3.7 | – | – | – | – | – | – | – | – | – | – | – | – | – |
4.8 | 0.84 | 0.93 | – | – | 0.32 | 0.50 | – | – | 0.33 | 0.48 | – | – | 0.56 ± 0.26 |
6.5 | 0.59 | 0.67 | 0.79 | – | 0.18 | 0.42 | 0.74 | 0.53 | – | 0.54 | 0.74 | 0.76 | 0.60 ± 0.19 |
7.7 | 0.56 | 0.54 | 0.59 | 0.47 | – | 0.09 | 0.38 | 0.45 | – | – | 0.35 | 0.58 | 0.45 ± 0.16 |
8.9 | – | 0.29 | 0.55 | 0.61 | – | – | 0.53 | 0.42 | – | – | – | 0.49 | 0.48 ± 0.12 |
9.7 | – | 0.42 | 0.63 | 0.65 | – | – | – | 0.36 | – | – | – | 0.49 | 0.51 ± 0.13 |
All spheres (mean ± SD) | 0.66 ± 0.16 | 0.57 ± 0.25 | 0.65 ± 0.11 | 0.58 ± 0.10 | 0.25 ± 0.11 | 0.34 ± 0.22 | 0.55 ± 0.19 | 0.44 ± 0.08 | 0.33 ± 0 | 0.51 ± 0.05 | 0.54 ± 0.28 | 0.58 ± 0.13 | 0.52 ± 0.18 |
