Overcoming challenges of translating deep learning models in glioblastoma: the ZGBM consortium

Research output: Contribution to journalArticlepeer-review

Abstract

Objective:
To report imaging protocol and scheduling variance in routine care of glioblastoma patients in order to demonstrate challenges of integrating deep-learning models in glioblastoma care pathways. Additionally, to understand the most common imaging studies and image contrasts to inform the development of potentially robust deep-learning models.

Methods:
MR imaging data were analysed from a random sample of five patients from the prospective cohort across five participating sites of the ZGBM consortium. Reported clinical and treatment data alongside DICOM header information were analysed to understand treatment pathway imaging schedules.

Results:
All sites perform all structural imaging at every stage in the pathway except for the presurgical study, where in some sites only contrast-enhanced T1-weighted imaging is performed. Diffusion MRI is the most common non-structural imaging type, performed at every site.

Conclusion:
The imaging protocol and scheduling varies across the UK, making it challenging to develop machine-learning models that could perform robustly at other centres. Structural imaging is performed most consistently across all centres.
Original languageEnglish
JournalBritish Journal of Radiology
Early online date1 Nov 2022
DOIs
Publication statusE-pub ahead of print - 1 Nov 2022

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