Implementation of the Australian Computer-Assisted Theragnostics (AusCAT) network for radiation oncology data extraction, reporting and distributed learning.
artificial intelligence
decision support systems
distributed learning
federated learning
radiation oncology
Journal
Journal of medical imaging and radiation oncology
ISSN: 1754-9485
Titre abrégé: J Med Imaging Radiat Oncol
Pays: Australia
ID NLM: 101469340
Informations de publication
Date de publication:
Aug 2021
Aug 2021
Historique:
received:
09
03
2021
accepted:
29
06
2021
pubmed:
1
8
2021
medline:
25
2
2023
entrez:
31
7
2021
Statut:
ppublish
Résumé
There is significant potential to analyse and model routinely collected data for radiotherapy patients to provide evidence to support clinical decisions, particularly where clinical trials evidence is limited or non-existent. However, in practice there are administrative, ethical, technical, logistical and legislative barriers to having coordinated data analysis platforms across radiation oncology centres. A distributed learning network of computer systems is presented, with software tools to extract and report on oncology data and to enable statistical model development. A distributed or federated learning approach keeps data in the local centre, but models are developed from the entire cohort. The feasibility of this approach is demonstrated across six Australian oncology centres, using routinely collected lung cancer data from oncology information systems. The infrastructure was used to validate and develop machine learning for model-based clinical decision support and for one centre to assess patient eligibility criteria for two major lung cancer radiotherapy clinical trials (RTOG-9410, RTOG-0617). External validation of a 2-year overall survival model for non-small cell lung cancer (NSCLC) gave an AUC of 0.65 and C-index of 0.62 across the network. For one centre, 65% of Stage III NSCLC patients did not meet eligibility criteria for either of the two practice-changing clinical trials, and these patients had poorer survival than eligible patients (10.6 m vs. 15.8 m, P = 0.024). Population-based studies on routine data are possible using a distributed learning approach. This has the potential for decision support models for patients for whom supporting clinical trial evidence is not applicable.
Identifiants
pubmed: 34331748
doi: 10.1111/1754-9485.13287
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
627-636Subventions
Organisme : Cancer Institute NSW
ID : Early Career Fellowship / 2019/ECF004
Informations de copyright
© 2021 The Royal Australian and New Zealand College of Radiologists.
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