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Updated: Jul 27, 2025

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
Published on: September 10, 2018
Cost-Effectiveness Analysis of
J Rodriguez1, G Martinez2,3, S Mahase4
1From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.).
Gallium 68Ga-DOTATATE PET/MR imaging improves quality-adjusted life-years (QALY) for meningioma patients undergoing radiation therapy. This advanced imaging technique is cost-effective for post-surgical planning, offering significant benefits over traditional MR imaging alone.
Area of Science:
- Radiology and Nuclear Medicine
- Oncology
- Medical Imaging Analysis
Background:
- Contrast-enhanced MR imaging is standard for meningioma diagnosis and treatment assessment.
- Gallium 68Ga-DOTATATE PET/MR imaging shows promise in meningioma management and postsurgical radiation planning.
- Higher perceived costs limit the clinical implementation of 68Ga-DOTATATE PET/MR imaging.
Purpose of the Study:
- To analyze the cost-effectiveness of 68Ga-DOTATATE PET/MR imaging for postresection radiation therapy planning in intermediate-risk meningioma patients.
- To compare the utility of 68Ga-DOTATATE PET/MR imaging versus MR imaging alone in this context.
Main Methods:
- Development of a decision-analytical model incorporating guidelines and institutional experience.
- Utilization of Markov models to estimate quality-adjusted life-years (QALY).
- Cost-effectiveness analysis from a societal perspective with willingness-to-pay thresholds of $50,000/QALY and $100,000/QALY.
- Sensitivity analyses to validate model results based on published literature.
Main Results:
- 68Ga-DOTATATE PET/MR imaging resulted in higher QALY (5.47 vs. 5.05) at an increased cost ($404,260 vs. $395,535) compared to MR imaging alone.
- Incremental cost-effectiveness ratio analysis confirmed cost-effectiveness at willingness-to-pay thresholds of $50,000/QALY and $100,000/QALY.
- Sensitivity analyses indicated cost-effectiveness for 68Ga-DOTATATE PET/MR imaging with specificity >76% (58%) and sensitivity >53% (44%) at the respective thresholds.
Conclusions:
- 68Ga-DOTATATE PET/MR imaging is a cost-effective adjunct for postoperative meningioma treatment planning.
- The study suggests that the cost-effective sensitivity and specificity thresholds for this imaging technique are achievable in clinical practice.
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