PET/MR
pet_mr
Medical
Gamma
Forward-Model Signal Chain
Each primitive represents a physical operation in the measurement process. Arrows show signal flow left to right.
Spec Notation
F(k) → S(coil) → D(μ_mr) → R(θ) → D(g, η)
Benchmark Variants & Leaderboards
PET/MR
Positron Emission Tomography / Magnetic Resonance
Spec Notation
F(k) → S(coil) → D(μ_mr) → R(θ) → D(g, η)
Standard Leaderboard (Top 10)
| # | Method | Score | PSNR (dB) | SSIM | Trust | Source |
|---|---|---|---|---|---|---|
| 🥇 | PET-ViT | 0.881 | 38.36 | 0.983 | ✓ Certified | Smith et al., ICCV 2024 |
| 🥈 | U-Net-PET | 0.811 | 34.66 | 0.966 | ✓ Certified | Ronneberger et al. variant, MICCAI 2020 |
| 🥉 | PETFormer | 0.810 | 34.64 | 0.965 | ✓ Certified | Li et al., ECCV 2024 |
| 4 | TransEM | 0.781 | 33.7 | 0.938 | ✓ Certified | Xie et al., 2023 |
| 5 | DeepPET | 0.749 | 32.4 | 0.918 | ✓ Certified | Haggstrom et al., MIA 2019 |
| 6 | FBP-PET | 0.707 | 29.96 | 0.916 | ✓ Certified | Analytical baseline |
| 7 | ML-EM | 0.689 | 29.23 | 0.904 | ✓ Certified | Shepp & Vardi, IEEE TPAMI 1982 |
| 8 | OS-EM | 0.658 | 28.03 | 0.881 | ✓ Certified | Hudson & Larkin, IEEE TMI 1994 |
| 9 | MAPEM-RDP | 0.632 | 28.5 | 0.815 | ✓ Certified | Nuyts et al., 2002 |
| 10 | OSEM | 0.508 | 24.8 | 0.690 | ✓ Certified | Hudson & Larkin, IEEE TMI 1994 |
Mismatch Parameters (4) click to expand
| Name | Symbol | Description | Nominal | Perturbed |
|---|---|---|---|---|
| mr_attenuation_error | Δμ_mr | MR attenuation estimation error (%) | 0 | 25.0 |
| motion_shift | Δs | Inter-modality motion (pixels) | 0 | 6.0 |
| b0_inhomogeneity | ΔB0 | B0 inhomogeneity (Hz) | 0 | 40.0 |
| pet_scatter_fraction | f_s | PET scatter fraction | 0 | 0.25 |