Improvement of conformal arc plans by using deformable margin delineation method for stereotactic lung radiotherapy

GÜNGÖR G., Demir M., Aydin G., Yapici B., Atalar B., Ozyar E.

JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, vol.19, no.1, pp.184-193, 2018 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 1
  • Publication Date: 2018
  • Doi Number: 10.1002/acm2.12237
  • Journal Name: JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.184-193
  • Keywords: DCA, FFF, SBRT, VMAT, BODY RADIATION-THERAPY, VOLUMETRIC MODULATED ARC, ABLATIVE RADIOTHERAPY, DOSE DISTRIBUTION, MDCA TECHNIQUE, CANCER, TUMORS, SBRT, DELIVERY, OUTCOMES
  • Acibadem Mehmet Ali Aydinlar University Affiliated: Yes

Abstract

Purpose: Stereotactic body radiotherapy (SBRT) is an established treatment technique in the management of medically inoperable early stage non-small cell lung cancer (NSCLC). Different techniques such as volumetric modulated arc (VMAT) and three-dimensional conformal arc (DCA) can be used in SBRT. Previously, it has been shown that VMAT is superior to DCA technique in terms of plan evaluation parameters. However, DCA technique has several advantages such as ease of use and considerable shortening of the treatment time. DCA technique usually results in worse conformity which is not possible to ameliorate by inverse optimization. In this study, we aimed to analyze whether a simple method-deformable margin delineation (DMD)-improves the quality of the DCA technique, reaching similar results to VMAT in terms of plan evaluation parameters.