An externally and internally deformable, programmable lung motion phantom.

ABSTRACT:

Purpose

Most clinically deployed strategies for respiratory motion management in lung radiotherapy (e.g., gating and tracking) use external markers that serve as surrogates for tumor motion. However, typical lung phantoms used to validate these strategies are based on a rigid exterior and a rigid or a deformable-interior. Such designs do not adequately represent respiration because the thoracic anatomy deforms internally as well as externally. In order to create a closer approximation of respiratory motion, the authors describe the construction and experimental testing of an externally as well as internally deformable, programmable lung phantom.

Methods

The outer shell of a commercially available lung phantom (RS-1500, RSD, Inc.) was used. The shell consists of a chest cavit

SUBMITTER: Cheung Y 

PROVIDER: S-EPMC4409628 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature