Feasibility and workflow efficiency of automated deep inspiration breath-hold for locoregional breast irradiation on a ring-gantry accelerator.

ABSTRACT:

Purpose

To evaluate the feasibility, dosimetric quality, workflow efficiency, and early tolerance of automated deep-inspiration breath-hold (DIBH) breast radiotherapy delivered on a ring-gantry platform.

Materials and methods

Twenty patients requiring locoregional irradiation were treated on a Radixact ring-gantry system between February and September 2025 using a static-beam intensity-modulated technique in automated DIBH. Dose/volume metrics for targets and organs of interest (OOIs), workflow parameters, and acute side effects were collected. Benchmark helical tomotherapy plans in DIBH conditions were reoptimized for comparison.

Results

All patients completed DIBH treatment. PTV coverage was consistently achieved (mean V_95%: 97.2% for low-risk and 99.2% f

SUBMITTER: Midani S 

PROVIDER: S-EPMC12830249 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature