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Multimodal 3D Printing of Phantoms to Simulate Biological Tissue

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Multi-resolution voxel phantom modeling: a high-resolution eye model for computational dosimetry.

Peter F Caracappa¹, Ashley Rhodes, Derek Fiedler

¹Nuclear Engineering Program, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.

Physics in Medicine and Biology

|August 22, 2014

Summary

A new high-resolution eye model improves radiation dose simulation accuracy in computational phantoms. This advancement is crucial for understanding radiation effects on the lens of the eye and ensuring safety.

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Area of Science:

Medical Physics
Computational Biology
Radiation Biology

Background:

Voxel models are essential for Monte Carlo radiation transport simulations.
Current models lack resolution for small structures like the eye, impacting dose accuracy.
Reduced eye lens dose limits highlight the need for precise dosimetry.

Purpose of the Study:

To develop a high-resolution eye model for improved radiation dose simulation.
To integrate this model into existing whole-body voxel phantoms.
To evaluate methods for incorporating high-resolution eye models.

Main Methods:

Constructed a high-resolution eye model using physiological data.
Combined the eye model with whole-body models to create a multi-resolution phantom.
Utilized the MCNPX code for radiation transport calculations.
Developed and compared two methods for integrating the high-resolution eye model.

Main Results:

The multi-resolution phantom accurately represents radiation transport through eye structures.
Developed methods enable accurate inclusion of high-resolution eye models.
Accuracy and performance were evaluated against existing computational phantoms.

Conclusions:

The developed high-resolution eye model enhances radiation dose simulation accuracy.
This improved dosimetry is vital for assessing risks to the lens of the eye.
The methods provide a pathway for more precise radiation protection strategies.