Abstract
Introduction
Cross-sectional imaging plays an integral role in the management of upper gastrointestinal (UGI) cancer, from initial diagnosis and staging to determining appropriate treatment strategies. Subjective imaging interpretation has known limitations. The field of radiomics has evolved to extract quantitative data from medical imaging and relate these to biological processes. The key concept behind radiomics is that the high-throughput analysis of quantitative imaging features can provide predictive or prognostic information, with the goal of providing individualised care.
Objective
Radiomic studies have shown promising utility in upper gastrointestinal oncology, highlighting a potential role in determining stage of disease and degree of tumour differentiation and predicting recurrence-free survival. This narrative review aims to provide an insight into the concepts underpinning radiomics, as well as its potential applications for guiding treatment and surgical decision-making in upper gastrointestinal malignancy.
Conclusion
Outcomes from studies to date have been promising; however, further standardisation and collaboration are required. Large prospective studies with external validation and evaluation of radiomic integration into clinical pathways are needed. Future research should now focus on translating the promising utility of radiomics into meaningful patient outcomes.
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Abbreviations
- AI:
-
Artificial intelligence
- ALBI:
-
Albumin-bilirubin score
- AUC:
-
Area under the receiver operating characteristic curve
- CT:
-
Computed tomography
- FDG:
-
Fludeoxyglucose
- FLRV:
-
Future liver remnant volume
- Gd-EOB-DTPA:
-
Gadolinium-ethoxybenzyl-diethylenetriamine
- GLCM:
-
Grey-level co-occurrence matrix
- GLDM:
-
Grey-level dependence matrix
- GLDZM:
-
Grey-level distance zone matrix
- GLRLM:
-
Grey-level run-length matrix
- GLSZM:
-
Grey-level size zone matrix
- GOJ:
-
Gastro-oesophageal junction
- HCC:
-
Hepatocellular carcinoma
- IBSI:
-
Imaging Biomarker Standardisation Initiative
- ICC:
-
Intra-class correlation coefficient
- ICG:
-
Indocyanine green
- LASSO:
-
Least absolute shrinkage and selection operator
- MELD:
-
Model for end-stage liver disease
- MRI:
-
Magnetic resonance imaging
- mRMR:
-
Minimum redundancy maximum relevance
- nCRT:
-
Neoadjuvant chemoradiotherapy
- NGLDM:
-
Neighbourhood grey-level dependence matrix
- NGTDM:
-
Neighbourhood grey-tone difference matrix
- pCR:
-
Complete pathological response
- PDAC:
-
Pancreatic ductal adenocarcinoma
- PET:
-
Positron emission tomography
- PHLF:
-
Post-operative liver failure
- PHM:
-
Pancreatic head malignancy
- ROI:
-
Region of interest
- SCC:
-
Squamous cell carcinoma
- SMA:
-
Superior mesenteric artery
- SMV:
-
Superior mesenteric vein
- TRG:
-
Tumour regression grade
- UGI:
-
Upper gastrointestinal
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SK and RB provided the concept for the paper. JD wrote the main manuscript, prepared tables and figures. All authors reviewed and critically revised the manuscript before final submission.
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Key points
• Radiomic studies to date have shown promising utility in upper gastrointestinal oncology.
• The powerful predictive capacity of radiomics has potential to guide surgical decision-making.
• Further prospective research is required to integrate radiomic modelling into clinical pathways in order to impact patient outcomes.
Sacheen Kumar and Ricky H. Bhogal are joint senior authors.
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Doyle, J.P., Patel, P.H., Petrou, N. et al. Radiomic applications in upper gastrointestinal cancer surgery. Langenbecks Arch Surg 408, 226 (2023). https://doi.org/10.1007/s00423-023-02951-z
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DOI: https://doi.org/10.1007/s00423-023-02951-z