PMID- 23725859 OWN - NLM STAT- MEDLINE DCOM- 20140613 LR - 20220330 IS - 1879-0887 (Electronic) IS - 0167-8140 (Linking) VI - 107 IP - 3 DP - 2013 Jun TI - Volumetric modulated arc therapy with flattening filter free (FFF) beams for stereotactic body radiation therapy (SBRT) in patients with medically inoperable early stage non small cell lung cancer (NSCLC). PG - 414-8 LID - S0167-8140(13)00191-6 [pii] LID - 10.1016/j.radonc.2013.04.016 [doi] AB - PURPOSE: To assess the impact of volumetric modulated arc therapy (VMAT) with flattening filter free (FFF) beams for stereotactic body radiotherapy (SBRT) in inoperable stage I NSCLC. Current data were compared against a cohort of patients previously treated with advanced conformal techniques (3DCRT) based on conformal arcs. METHODS AND MATERIALS: From July 2006 to December 2011 132 patients underwent SBRT, 86 by 3DCRT with flattened beams (FF), while the last 46 with VMAT RapidArc and unflattened beams (FFF). All patients were treated with 48 Gy in four fractions of 12 Gy each. Patients underwent follow-up. Clinical outcome was evaluated with thoracic and abdominal CT scan and 18FDG-CTPET before and after treatment. RESULTS: Both techniques achieved adequate dose conformity to the target but with a statistically significant reduction of ipsilateral lung doses in RapidArc plans and also of Beam-on-Time (BOT) with FFF mode. The median follow up was 16 months (range 2-24 months). At 1 year, local control rate was 100% with FFF beams compared with 92.5% with FF beams (p=0.03). CONCLUSIONS: SBRT with FFF beams permitted us a safe delivery of high dose per fraction in a short treatment time and resulted in an earlier radiological response compared with FF beams. CI - Copyright (c) 2013 Elsevier Ireland Ltd. All rights reserved. FAU - Navarria, Pierina AU - Navarria P AD - Radiotherapy and Radiosurgery Department, Humanitas Cancer Center, Istituto Clinico Humanitas, Milan, Italy. piera.navarria@cancercenter.humanitas.it FAU - Ascolese, Anna Maria AU - Ascolese AM FAU - Mancosu, Pietro AU - Mancosu P FAU - Alongi, Filippo AU - Alongi F FAU - Clerici, Elena AU - Clerici E FAU - Tozzi, Angelo AU - Tozzi A FAU - Iftode, Cristina AU - Iftode C FAU - Reggiori, Giacomo AU - Reggiori G FAU - Tomatis, Stefano AU - Tomatis S FAU - Infante, Maurizio AU - Infante M FAU - Alloisio, Marco AU - Alloisio M FAU - Testori, Alberto AU - Testori A FAU - Fogliata, Antonella AU - Fogliata A FAU - Cozzi, Luca AU - Cozzi L FAU - Morenghi, Emanuela AU - Morenghi E FAU - Scorsetti, Marta AU - Scorsetti M LA - eng PT - Journal Article DEP - 20130528 PL - Ireland TA - Radiother Oncol JT - Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology JID - 8407192 SB - IM MH - Aged MH - Aged, 80 and over MH - Carcinoma, Non-Small-Cell Lung/diagnostic imaging/mortality/pathology/*surgery MH - Female MH - Humans MH - Lung Neoplasms/diagnostic imaging/mortality/pathology/*surgery MH - Male MH - Neoplasm Staging MH - Radiography MH - Radiosurgery/*methods MH - Radiotherapy Dosage MH - Radiotherapy Planning, Computer-Assisted MH - Radiotherapy, Intensity-Modulated/*methods OTO - NOTNLM OT - NSCLC OT - SBRT OT - Volumetric modulated Arc Therapy EDAT- 2013/06/04 06:00 MHDA- 2014/06/15 06:00 CRDT- 2013/06/04 06:00 PHST- 2012/10/19 00:00 [received] PHST- 2013/04/05 00:00 [revised] PHST- 2013/04/27 00:00 [accepted] PHST- 2013/06/04 06:00 [entrez] PHST- 2013/06/04 06:00 [pubmed] PHST- 2014/06/15 06:00 [medline] AID - S0167-8140(13)00191-6 [pii] AID - 10.1016/j.radonc.2013.04.016 [doi] PST - ppublish SO - Radiother Oncol. 2013 Jun;107(3):414-8. doi: 10.1016/j.radonc.2013.04.016. Epub 2013 May 28.