Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/28759
Title: Patterns of the use of advanced radiation therapy techniques for the management of bone metastases and the associated factors in Victoria.
Austin Authors: Fogarty, Tamara;Tacey, Mark A ;McCorkell, Giulia;Kok, David;Hornby, Colin;Milne, Roger L;Millar, Jeremy;Foroudi, Farshad ;Ong, Wee Loon 
Affiliation: Olivia Newton-John Cancer Wellness and Research Centre
Department of Epidemiology and Preventive Medicine, Monash University, Prahran, Victoria, Australia
Melbourne Medical School, University of Melbourne, Melbourne, Victoria, Australia
Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia
Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
Central Clinical School, Monash University, Prahran, Victoria, Australia
Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
School of Clinical Medicine, University of Cambridge, Cambridge, UK
Victorian Department of Health, Melbourne, Victoria, Australia
Department of Radiation Oncology, Alfred Health, Melbourne, Victoria, Australia
Issue Date: Aug-2022
Date: 2022-02-01
Publication information: Journal of Medical Imaging and Radiation Oncology 2022; 66(5): 678-687
Abstract: To describe the pattern of the use of advanced radiation therapy (RT) techniques, including intensity-modulated RT (IMRT), volumetric modulated arc therapy (VMAT), and stereotactic body RT (SBRT) for the management of bone metastases (BM), and the associated factors in Victoria. We used a population-based cohort of patients from the state-wide Victorian Radiotherapy Minimum Data Set (VRMDS) who received RT for BM between 2012 and 2017. The primary outcome was proportion of RT courses using advanced RT techniques. The Cochran-Armitage test for trend was used to evaluate temporal trend in advanced RT use. Multinomial logistic regression was used to identify factors associated with advanced RT use. A total of 18,158 courses of RT were delivered to 10,956 patients-16,626 (91.6%) courses were 3D conformal RT, 857 (4.7%) IMRT/VMAT and 675 (3.7%) SBRT. There was a sharp increase in IMRT/VMAT use from <1% in 2012-2015, to 10.1% in 2016 and 16.3% in 2017 (P-trend < 0.001). Increase in SBRT use was more gradual, from 1.2% in 2012 to 4.8% in 2016 and 5.5% in 2017 for SBRT (P-trend<0.001). In multivariate analyses, year of RT was the strongest predictor of IMRT/VMAT use (OR = 41; 95%CI = 25-67; P < 0.001, comparing 2012-2013 and 2016-2017). Primary tumour type (prostate cancer) was the strongest predictor of SBRT use (OR = 6.07; 95% CI = 4.19-8.80; P < 0.001). Overall, there was increasing trend in the use of advanced RT techniques for BM in Victoria, with a distinct pattern for IMRT/VMAT compared with SBRT - SBRT uptake was more gradual while IMRT/VMAT uptake was abrupt, occurring contemporaneously with Medicare Benefit Scheme funding changes in 2016.
URI: https://ahro.austin.org.au/austinjspui/handle/1/28759
DOI: 10.1111/1754-9485.13381
ORCID: 0000-0002-3383-4656
0000-0001-8387-0965
0000-0001-6657-7193
0000-0003-2948-8495
Journal: Journal of Medical Imaging and Radiation Oncology
PubMed URL: 35106919
PubMed URL: https://pubmed.ncbi.nlm.nih.gov/35106919/
Type: Journal Article
Subjects: IMRT
VMAT
bone metastases
radiation therapy
stereotactic
Appears in Collections:Journal articles

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