New algorithm of dual-energy CT for proton stopping-power prediction

What is it about?

Radiotherapy with protons can provide superior dose distribution to x rays, allowing precise delivery of the highest dose at the tumor and avoidance of healthy tissues. To fully employ the merits of proton beams, we need to predict the distribution of proton stopping power ratio (SPR) of tissues in the human body as accurately as possible. This paper presents a new algorithm for predicting the SPRs from dual-energy CT data.

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Why is it important?

Our algorithm is not only accurate, but also simple in terms of computational complexity. Both simplicity and accuracy should be mandatory for a standard SPR prediction procedure that has to be routinely employed in radiotherapy treatment planning.