IMG-21. HOW CAN WE BEST UTILISE HISTORICAL IMAGING DATASETS FOR RESEARCH IN PAEDIATRIC NEURO-ONCOLOGY? A REVIEW OF HISTORICAL PRE-OPERATIVE IMAGING PERFORMED FOR 92 PAEDIATRIC BRAIN TUMOUR PATIENTS WITH COMPARISON TO 2021 SIOPE GUIDELINES Article Swipe
Simon Dockrell
,
Kate Vaughan
,
John-Paul Kilday
,
Ian Kamaly-Asl
,
Martin G. McCabe
,
Stavros Stivaros
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1093/neuonc/noae064.358
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1093/neuonc/noae064.358
BACKGROUND Utilisation of historical imaging is important for studying long-term outcomes in paediatric brain tumours often pooling data across multiple centres retrospectively over many years. Disparities in MRI sequence parameters, imaging planes, fields of view and resolution limit quantitative radiomic analysis and segmentation algorithms. We review historical imaging datasets, analysing the MRI scans performed assessing suitability for modern research techniques. METHODS Retrospective review of presenting MRI scans was performed in 92 paediatric brain tumour patients between 2006-2020. Whether imaging was performed internally at our paediatric neurosciences centre or externally at their referring hospitals was recorded. Image sequences, planes and slice thickness were compared with 2021 SIOPE guidelines for paediatric brain tumour imaging. T2 signal intensities for tumour, white and grey matter were compared for scans completed in different centres. Statistical testing was performed with T-Test and Paired T-Test. RESULTS 75% of patients had all SIOPE essential sequences and 60.9% were in the recommended planes. Only 1 patient had the desired slice thickness in all sequences recommended for 1.5T scanners. 38.5% had T1 and 27.8% had post-contrast T1 in the ≤1mm slice thickness recommended for 3T scanners. Comparison between 62 internal and 30 external scans revealed statistically significant differences in T2 signal intensities for regions of interest (ROI) within tumour, white and grey matter (p<0.01). Comparison of matched ROI for 12 patients imaged internally and externally demonstrated statistically significant differences in T2 signal intensities (p<0.05). Differences persisted despite normalisation of T2 signal intensity as ratios between tumour and the weighted mean of white and grey matter (p<0.01). CONCLUSIONS This study highlights the challenges of non-standardisation of imaging resolution and acquisition parameters in historical imaging. One approach to utilise these datasets is to use qualitative classifications where human experts label imaging features and encode data for future statistical or machine learning analysis.
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Metadata
- Type
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- Language
- en
- Landing Page
- https://doi.org/10.1093/neuonc/noae064.358
- https://academic.oup.com/neuro-oncology/article-pdf/26/Supplement_4/0/58253326/noae064.358.pdf
- OA Status
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- Related Works
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- OpenAlex ID
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All OpenAlex metadata
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https://openalex.org/W4399760470Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1093/neuonc/noae064.358Digital Object Identifier
- Title
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IMG-21. HOW CAN WE BEST UTILISE HISTORICAL IMAGING DATASETS FOR RESEARCH IN PAEDIATRIC NEURO-ONCOLOGY? A REVIEW OF HISTORICAL PRE-OPERATIVE IMAGING PERFORMED FOR 92 PAEDIATRIC BRAIN TUMOUR PATIENTS WITH COMPARISON TO 2021 SIOPE GUIDELINESWork title
- Type
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reviewOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-06-18Full publication date if available
- Authors
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Simon Dockrell, Kate Vaughan, John-Paul Kilday, Ian Kamaly-Asl, Martin G. McCabe, Stavros StivarosList of authors in order
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https://doi.org/10.1093/neuonc/noae064.358Publisher landing page
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https://academic.oup.com/neuro-oncology/article-pdf/26/Supplement_4/0/58253326/noae064.358.pdfDirect link to full text PDF
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://academic.oup.com/neuro-oncology/article-pdf/26/Supplement_4/0/58253326/noae064.358.pdfDirect OA link when available
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Medicine, Medical physics, Neuroimaging, IMG, Computer science, Psychiatry, Operating systemTop concepts (fields/topics) attached by OpenAlex
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10Other works algorithmically related by OpenAlex
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