SPECT/CT
spect_ct
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
R(θ) → D(μ_ct) → H(coll) → D(g, η)
Benchmark Variants & Leaderboards
SPECT/CT
Single Photon Emission CT / Computed Tomography
Spec Notation
R(θ) → D(μ_ct) → H(coll) → D(g, η)
Standard Leaderboard (Top 10)
| # | Method | Score | PSNR (dB) | SSIM | Trust | Source |
|---|---|---|---|---|---|---|
| 🥇 | DL-SPECT | 0.851 | 36.72 | 0.977 | ✓ Certified | Ramon et al., IEEE TMI 2020 |
| 🥈 | MAP-OSEM | 0.787 | 33.49 | 0.957 | ✓ Certified | Nuyts et al., 2002 |
| 🥉 | AC-OSEM | 0.721 | 30.53 | 0.925 | ✓ Certified | CT-based attenuation correction |
| 4 | OSEM | 0.508 | 24.8 | 0.690 | ✓ Certified | Hudson & Larkin, IEEE TMI 1994 |
Mismatch Parameters (4) click to expand
| Name | Symbol | Description | Nominal | Perturbed |
|---|---|---|---|---|
| ct_registration_shift | Δs | CT-SPECT registration error (pixels) | 0 | 5.0 |
| hu_to_mu_scale | Δμ | HU-to-μ calibration error (%) | 0 | 12.0 |
| scatter_fraction | f_s | Scatter fraction | 0 | 0.35 |
| collimator_blur | σ_c | Collimator blur FWHM (pixels) | 2.5 | 6.0 |