What is it about?

We are the first to report a comprehensive and highly practical commissioning procedure including CT-number-to-relative stopping power curve calibration, evaluation of physical and biological dose of newly developed treatment planning system (TPS) for fast-raster scanning carbon-ion beam.

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Why is it important?

We found that the modeled beams reproduced the physical and biological dose distribution in the water. Our procedure, however, revealed some limitations in modeling dose for heterogenous media. Available TPS which can calculate the scanned carbon-ion is extremely limited at this moment and there is a few information on the commissioning procedure for the TPS.


Writing this article marked a milestone as it summarized the heavy-ion therapy project in Osaka, Japan. This paper may be useful for the community to confirm the validity of their TPS as carbon-ion therapy center is growing worldwide.

Masashi Yagi
Osaka University

Read the Original

This page is a summary of: Commissioning a newly developed treatment planning system, VQA Plan, for fast-raster scanning of carbon-ion beams, PLoS ONE, May 2022, PLOS,
DOI: 10.1371/journal.pone.0268087.
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