A three day coaching protocol for deep inspiration breath hold in left breast radiotherapy using active breathing control.

ABSTRACT: The deep inspiration breath-hold (DIBH) technique is recommended for left-sided breast radiotherapy to reduce heart dose exposure. However, this technique introduces uncertainties due to possible anatomical variations across successive breath-holds, requiring patient coaching to ensure reproducibility. This study aims to establish an objective coaching framework to optimize DIBH effectiveness and achieve the reproducibility of chest anatomy in left-sided breast radiotherapy. This study implemented a three-day DIBH coaching protocol using the Active Breathing Coordinator (ABC) system (Elekta AB, Sweden), with particular emphasis on the breath-hold threshold and the lung volume difference from CT images. The former was a manually configured parameter in the ABC system that reflected the stab

SUBMITTER: Jiang S 

PROVIDER: S-EPMC12701011 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature