SESSION TITLE: Advancements in Lung Cancer Diagnostics and Treatment
SESSION TYPE: Original Investigation Slide
PRESENTED ON: Wednesday, October 26, 2016 at 08:45 AM - 10:00 AM
PURPOSE: The aim of this study was to identify patients with pulmonary metastases who would be most likely to benefit from lung stereotactic body radiotherapy (SBRT).
METHODS: After institutional review board approval, we retrospectively identified 92 patients with 111 pulmonary metastases from any primary site treated with SBRT at our institution between 2008 and 2015. Gross tumor volume (GTV) was non-uniformly expanded to create an internal target volume (ITV) to encompass tumor motion. A 5 mm uniform expansion of the ITV was applied to create the planning target volume (PTV). Cone beam CT was used for daily image-guidance. The most common SBRT regimen was 48 Gy/4 fractions for peripheral lesions, and 50 Gy/5 fractions for central lesions. Toxicities were recorded according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0. Survival curves were calculated from the time of SBRT using the Kaplan-Meier method.