Table 4 Structural similarity index measure (mean ± standard deviation) of myocardium area for different methods and acquisition times at rest
From: Comparison of deep learning-based denoising methods in cardiac SPECT
Acquisition time | Method | ||||
|---|---|---|---|---|---|
SSIM | |||||
p value versus reduced time OSEM | |||||
OSEM | CNN | RES | UNET | cGAN | |
Half | 0.978 ± 0.014 | 0.950 ± 0.021 | 0.955 ± 0.018 | 0.960 ± 0.018 | 0.936 ± 0.037 |
0.0013 | 0.0005 | 0.0003 | 0.0024 | ||
Quarter | 0.957 ± 0.019 | 0.941 ± 0.019 | 0.944 ± 0.014 | 0.948 ± 0.013 | 0.921 ± 0.031 |
0.0191 | 0.0046 | 0.0363 | 0.0008 | ||