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Early Budget Impact Analysis of Artificial Intelligence to Support the Review of Radiographic Examinations for
Lucy Gregory1, Trishal Boodhna1, Mathew Storey2
1Health Economics and Outcomes Research Department, Hardian Health, Haywards Heath, UK.
Objectives:
To develop an early budget impact analysis of and inform future research on the national adoption of a commercially available artificial intelligence (AI) application to support clinicians reviewing radiographs for suspected fractures across National Health Service (NHS) emergency departments (ED) in England.
Methods:
A decision tree framework was coded to assess a change in outcomes for suspected fractures in adults when AI fracture detection was integrated into the clinical workflow over a 1-year time horizon. Standard of care was the comparator scenario, and the ground truth reference cases were characterized by radiology report findings. The effect of AI on assisting ED clinicians when detecting fractures was sourced from US literature. Data on resource use conditioned on the correct identification of a fracture in the ED were extracted from a London NHS trust. Sensitivity analysis was conducted to account for the influence of parameter uncertainty on results.
Results:
In 1 year, an estimated 658 564 radiographs were performed in the EDs across England for suspected wrist, ankle, or hip fractures. The number of patients returning to the ED with a missed fracture was reduced by 21 674 cases, and a reduction of 20 916 unnecessary referrals to fracture clinics was also noted. The cost of the current practice was estimated at £66 646 542 and £63 012 150 with the integration of AI. Overall, a return on investment of £3 634 392 to the NHS was generated.
Conclusions:
The adoption of AI in EDs across England has the potential to generate cost savings. Nevertheless, additional evidence on radiograph review accuracy and subsequent resource use is required to further signify this.
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