Table 1 Coefficient of variation (mean ± standard deviation) of myocardium counts for different methods and acquisition times at stress
From: Comparison of deep learning-based denoising methods in cardiac SPECT
Acquisition time | Method | ||||
|---|---|---|---|---|---|
CoV [%] | |||||
p value versus full time OSEM | |||||
p value versus reduced time OSEM | |||||
OSEM | CNN | RES | UNET | cGAN | |
Full | 24.8 ± 5.2 | – | – | – | – |
– | – | – | – | – | |
– | – | – | – | – | |
Half | 25.2 ± 5.3 | 23.4 ± 5.0 | 23.2 ± 5.2 | 23.5 ± 5.3 | 21.7 ± 5.4 |
0.1161 | 0.0081 | 0.0010 | 0.0014 | 0.0010 | |
– | 0.0002 | < 0.0001 | < 0.0001 | 0.0003 | |
Quarter | 26.5 ± 4.2 | 24.1 ± 4.2 | 23.9 ± 4 | 24.1 ± 4.5 | 22.6 ± 4.5 |
0.0037 | 0.2259 | 0.0744 | 0.1514 | 0.0139 | |
– | 0.0002 | 0.0003 | 0.0006 | 0.0008 | |