Background

The Emission Tomography Standardization Initiative (ETSI) is working towards establishing a standard for PET Raw Data, called PETSIRD ("PET ETSI Raw Data"). More information is on https://github.com/ETSInitiative/PETSIRD.

Description

This project provides a converter, in c++, that reads a PETSIRD data file and generates the corresponding CASToR list mode file and geometry LUT.

Compiling the software

You need to run yardl generate in the PETSIRD/model directory first.

Compiling the converter:

cd cpp
mkdir -p build && cd build`
cmake -G Ninja -S .. -DHDF5_ROOT=$CONDA_PREFIX
ninja`

If you did not use conda to install HDF5, do not add the -DHDF5_ROOT=$CONDA_PREFIX part of the cmake line.

How to use

After compilation, run petsird_castor_converter --help to see how to use the converter.

Known limitations

• CASToR related:
  • Multi-TOF bins are not supported.
  • Energy bins are not supported.
• PETSIRD standard related:
  • Orientation of the LUT are currently defined as zero vectors.
  • Crystal size is unknown, thus it cannot be used for multiSiddon or Distance Driven projectors.
• Others
  • Only supports scanner with one type of module.
  • Currently, all event are setted at 1 ms.

TODOs

• Wait for scanner to support these?
  • Supports scanner with multiple type of modules IF they don't differ in detectors size.
  • Make sure that DetectionBins are not used as CASToR detector elements (Needed to support multiple type of modules).
  • Add supports for multi-TOF kernels.
• Future
  • Deduce the size of detectors and propose a voxel size.