Assessment of Organ Dose Reduction Using Dynamic Conformal Arc and Static Field with FFF Beams for SBRT in Lung Cancer

The aim of this study is to compare the dose delivered to the organs at risk (OAR), using static beams (SF) and a dynamic conformational arc (DCA) with flattening filter free (FFF) beams, for lung stereotactic body radiation therapy (SBRT). 100 patients with lung cancer were treated with SBRT, using...

Full description

Saved in:
Bibliographic Details
Published in:Cancer investigation 2022-11, Vol.40 (10), p.868-878
Main Authors: Savanović, Milovan, Loi, Mauro, Rivin Del Campo, Eleonor, Huguet, Florence, Foulquier, Jean-Noël
Format: Article
Language:English
Subjects:
dynamic conformal arc
flattened filter
flattening filter free
Lung tumor
static field
stereotactic body radiation therapy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study is to compare the dose delivered to the organs at risk (OAR), using static beams (SF) and a dynamic conformational arc (DCA) with flattening filter free (FFF) beams, for lung stereotactic body radiation therapy (SBRT). 100 patients with lung cancer were treated with SBRT, using FF beams (TrueBeam STx, 6 MV, IQ = 0.67, 600 MU/min), separated into two groups: DCA (50 patients) and SF (50 patients). These patients were retrospectively re-planned using 6XFFF beams, IQ = 0.63, 1400 MU/min. The beam-on time and dosimetric gain on planning target volume (PTV) and OARs (heart, spinal cord, planning risk volume (PRV) of spinal cord, esophagus, lungs and ribs) were analyzed according to tumor location. The comparison of median values was performed using the non-parametric Wilcoxon test (significance level: p 
ISSN:0735-7907
1532-4192
DOI:10.1080/07357907.2022.2103705