Accuracy and efficiency of respiratory gating comparable to deep inspiration breath hold for pancreatic cancer treatment.

ABSTRACT:

Purpose

Deep inspiration breath hold (DIBH) and respiratory gating (RG) are widely used to reduce movement of target and healthy organs caused by breathing during irradiation. We hypothesized that accuracy and efficiency comparable to DIBH can be achieved with RG for pancreas treatment.

Methods and materials

Twenty consecutive patients with pancreatic cancer treated with DIBH (eight) or RG (twelve) volumetric modulated arc therapy during 2017-2019 were included in this study, with radiopaque markers implanted near or in the targets. Seventeen patients received 25 fractions, while the other three received 15 fractions. Only patients who could not tolerate DIBH received RG treatment. While both techniques relied on respiratory signals from external markers, internal target mot

SUBMITTER: Zeng C 

PROVIDER: S-EPMC7856516 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature