| THC | CACAO |
Compton scattering and attenuation in the patient | same | same |
Number of collected photons | low | ×1000 |
Septal penetration in the collimator | 5% | weaker |
Noise Amplification in the reconstruction | worse | weak |
Noise amplification with source to collimator distance | worse | weak |
Noise amplification with matrix size | worse | weak |
Benefiting from a intrinsic spatial resolution improvement | sensitivity | ++ |
Depth of interaction in the detector | weak | worse |
Degradation of detector performances due to high count rate | weak | worse |
Reconstruction highly regularized at low resolution | weak | worse |