Evaluation of treatment planning system accuracy in estimating the stopping-power ratio of immobilization devices for proton therapy

CONCLUSIONS: The TPS tends to underestimate the SPR of selected proton immobilization devices by an average of about 20%, but this does not induce major WET errors because of the low density of the devices. The dosimetric effect of this SPR error was negligible for most treatment sites, although the maximum dose of a few OARs exhibited noticeable variations.PMID:36593751 | DOI:10.1002/acm2.13831
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Source Type: research