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Related Experiment Video

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Radiation Planning Assistant - A Web-based Tool to Support High-quality Radiotherapy in Clinics with Limited Resources

Radiation Planning Assistant - A Web-based Tool to Support High-quality Radiotherapy in Clinics with Limited Resources

Published on: October 6, 2023

Development of a web-based CT dose calculator: WAZA-ARI.

N Ban¹, F Takahashi, K Sato

¹Tokyo Healthcare University, 2-5-23 Higashigaoka, Meguro-ku, Tokyo 152-8558, Japan. n-ban@thcu.ac.jp

Radiation Protection Dosimetry

|August 19, 2011

Summary

A new web-based system, WAZA-ARI, calculates computed tomography (CT) radiation doses using advanced simulations. It highlights the importance of using specific patient phantoms for accurate dose assessment in CT scans.

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Last Updated: May 30, 2026

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Published on: September 4, 2017

Area of Science:

Medical Physics
Radiological Dosimetry
Computational Imaging

Background:

Accurate radiation dose calculation is crucial for patient safety in computed tomography (CT).
Existing dose calculation systems may not fully account for anatomical variations.
Development of advanced simulation tools is needed for precise CT dosimetry.

Purpose of the Study:

To develop and evaluate WAZA-ARI, a web-based system for CT dose calculation.
To implement modern radiation transport simulation techniques.
To assess the impact of phantom selection on dose coefficient accuracy.

Main Methods:

Utilized the Particle and Heavy Ion Transport code System for Monte Carlo simulations.
Calculated dose coefficients using a voxel-type Japanese adult male phantom (JM phantom).
Developed WAZA-ARI as Java servlets within Apache Tomcat for web accessibility.

Main Results:

WAZA-ARI integrates calculated dose coefficients for CT dose estimation.
Comparisons with MIRD and ICRP Adult Male phantoms revealed differences due to phantom configuration.
Demonstrated the significance of using appropriate phantoms for accurate CT dose calculations.

Conclusions:

WAZA-ARI is a promising tool for clinical CT dose calculation.
The system's accuracy is influenced by the chosen phantom, emphasizing the need for patient-specific models.
Further development will expand WAZA-ARI's utility for various CT scanner models and options.