Real-time optical oximetry during FLASH radiotherapy using a phosphorescent nanoprobe.

Ha, Byunghang; Liang, Kaitlyn; Liu, Cheng; Melemenidis, Stavros; Manjappa, Rakesh; Viswanathan, Vignesh; Das, Neeladrisingha; Ashraf, Ramish et al. · Radiother Oncol · 2022

basic_science · Level V

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Abstract

The rapid depletion of oxygen during irradiation at ultra-high dose rate calls for tissue oximeters capable of high temporal resolution. This study demonstrates a water-soluble phosphorescent nanoprobe and fiber-coupled instrument, which together are used to measure the kinetics of oxygen depletion at 200 Hz during irradiation of in vitro solutions.

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