# SETR
## Synergistic Emission Tomographic Reconstruction
Tools for nuclear medicine image reconstruction combining PET/SPECT with CT anatomical information.
## Contents
- **Vectorial Total Variation** regularization
- **GPU-accelerated gradients and Jacobians**
- **Python wrapper for STIR Kernel EM**
- **Numba-optimized kernel operators**
- **Extended CIL functionality:**
- Preconditioners
- Callbacks
- Step size rules
- **SIRF data loading utilities**
## Installation
```bash
# Install dependencies via conda / pip or from source
- SIRF
- CIL
# Install SETR
pip install py-setr
```
## Note
In order to use the partitioner with SPECT, you will need to build stir with
https://github.com/samdporter/STIR/tree/SPECT_subsets
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