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Published in: European Radiology 4/2022

01-04-2022 | Magnetic Resonance Imaging | Gastrointestinal

Additional MRI for initial M-staging in pancreatic cancer: a cost-effectiveness analysis

Authors: Felix G. Gassert, Sebastian Ziegelmayer, Johanna Luitjens, Florian T. Gassert, Fabian Tollens, Johann Rink, Marcus R. Makowski, Johannes Rübenthaler, Matthias F. Froelich

Published in: European Radiology | Issue 4/2022

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Abstract

Objective

Pancreatic cancer is portrayed to become the second leading cause of cancer-related death within the next years. Potentially complicating surgical resection emphasizes the importance of an accurate TNM classification. In particular, the failure to detect features for non-resectability has profound consequences on patient outcomes and economic costs due to incorrect indication for resection. In the detection of liver metastases, contrast-enhanced MRI showed high sensitivity and specificity; however, the cost-effectiveness compared to the standard of care imaging remains unclear. The aim of this study was to analyze whether additional MRI of the liver is a cost-effective approach compared to routinely acquired contrast-enhanced computed tomography (CE-CT) in the initial staging of pancreatic cancer.

Methods

A decision model based on Markov simulation was developed to estimate the quality-adjusted life-years (QALYs) and lifetime costs of the diagnostic modalities. Model input parameters were assessed based on evidence from recent literature. The willingness-to-pay (WTP) was set to $100,000/QALY. To evaluate model uncertainty, deterministic and probabilistic sensitivity analyses were performed.

Results

In the base-case analysis, the model yielded a total cost of $185,597 and an effectiveness of 2.347 QALYs for CE-MR/CT and $187,601 and 2.337 QALYs for CE-CT respectively. With a net monetary benefit (NMB) of $49,133, CE-MR/CT is shown to be dominant over CE-CT with a NMB of $46,117. Deterministic and probabilistic survival analysis showed model robustness for varying input parameters.

Conclusion

Based on our results, combined CE-MR/CT can be regarded as a cost-effective imaging strategy for the staging of pancreatic cancer.

Key Points

Additional MRI of the liver for initial staging of pancreatic cancer results in lower total costs and higher effectiveness.
The economic model showed high robustness for varying input parameters.
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Metadata
Title
Additional MRI for initial M-staging in pancreatic cancer: a cost-effectiveness analysis
Authors
Felix G. Gassert
Sebastian Ziegelmayer
Johanna Luitjens
Florian T. Gassert
Fabian Tollens
Johann Rink
Marcus R. Makowski
Johannes Rübenthaler
Matthias F. Froelich
Publication date
01-04-2022
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 4/2022
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-021-08356-0

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