Breath-hold versus mid-ventilation in SBRT of adrenal metastases.

ABSTRACT:

Purpose

To improve local control in radiotherapy of adrenal metastases precise dose delivery without increasing toxicity is vital. Decreasing the Clinical Target Volume (CTV) - Planning Target Volume (PTV) margins by reducing breathing movement can achieve this. Few data were published concerning the effect of a breath-hold technique. This study investigates the potential of Active Breathing Control (ABC) to limit adrenal breathing movement and reduce CTV-PTV margins.

Methods

We compared adrenal gland movement in free-breathing, making use of the Mid-ventilation (MidV) technique, and with ABC. The coordinates of the adrenal glands obtained on ten phases of a free breathing 4D-CT and on several repeat inspiration ABC CT-scans were measured. Separate coordinates, the random ma

SUBMITTER: de Kuijer M 

PROVIDER: S-EPMC7033782 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature