Tornado Diagram for CVR Strategy (IMAGE) Radiological Society of North America Caption This tornado diagram summarizes one-way sensitivity analyses for the CVR strategy compared with the medical therapy strategy for the base-case analysis. Most ICERs were close to the base-case result ($20,000 per QALY) because model parameters were varied through plausible ranges, with the exceptions of the cost of revascularization and the cost of chronic stroke care. Parameters are shown in descending order of influence on model results. RR = risk ratio. Credit Radiological Society of North America Usage Restrictions May use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.