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Flexible and Generic Framework for Complex Nuclear Medicine Scanners Using FreeCAD/GDML Workbench
Anh Le1, Amirreza Hashemi2, Mark P Ottensmeyer2
1Northeastern University, Department of Mechanical Engineering.
Computer-Aided Design and Applications
|July 8, 2026
Summary
This study introduces FreeCAD and GDML Workbench for designing complex nuclear imaging scanners. These tools streamline the creation and simulation of advanced components for PET and SPECT systems.
Area of Science:
- Medical Imaging
- Computational Modeling
Background:
- Nuclear imaging scanner design is vital for detection and imaging optimization.
- Current research trends towards complex geometries, but CAD tool adoption is limited.
Purpose of the Study:
- Introduce FreeCAD and GDML Workbench for designing and testing complex nuclear imaging geometries.
- Demonstrate the integration of these tools for nuclear medicine scanner development.
Main Methods:
- Utilized FreeCAD, a parametric 3D CAD modeler.
- Employed GDML (Geometry Description Markup Language) for simulation geometry.
- Integrated FreeCAD with GDML Workbench for complex scanner design.
- Performed simulations using Geant4.
Main Results:
- Successfully designed and simulated intricate components for nuclear imaging modalities.
- Demonstrated the application in creating calibration phantoms.
- Showcased precision and versatility in generating sophisticated scanner geometries.
Conclusions:
- FreeCAD and GDML Workbench integration streamlines nuclear imaging scanner design and simulation.
- These tools enhance efficiency and facilitate the application of complex designs in PET and SPECT scanners.
- Expected to accelerate adoption of advanced CAD tools in nuclear imaging research and development.
