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January 1, 2026Japanese Journal of Radiological TechnologyOpen Access

Calculation of Ambient Dose in X-ray Fluoroscopy Room Using Monte Carlo Simulation Based on CAD Data

Kota Sasaki Hiraku Fuse Norikazu Koori Kenji Yasue Koichi Hanada Michimasa Tachibana Tomohiro Furuya Masahiko Monma

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Key Points

This study aims to improve the accuracy of ambient dose calculations in X-ray fluoroscopy rooms using CAD data.
Used a 3D scanner to capture images of X-ray fluoroscopy equipment and create CAD data.
Employed the PHITS Monte Carlo simulation code to construct the geometry of the fluoroscopy room.
Calculated errors between ambient doses measured with an ionization chamber and those estimated using both traditional methods and CAD-based methods.
The error rates between measurements and calculated doses using the CAD method were within 5.3% at all measurement points, and within 3.3% near the equipment.
Error rates increased when comparing the CAD method to traditional methods for doses calculated close to the equipment.

Implication

Demonstrates improved accuracy of ambient dose calculations in X-ray fluoroscopy rooms, suggesting potential for enhanced safety.

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Cite This Study

Sasaki et al. (2026) studied this question.

synapsesocial.com/papers/6a34dc5265a5b0777af2c90a https://doi.org/10.6009/jjrt.26-1643

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