Abstract No. 626 Operational efficiency improvement following conversion of a fluoroscopy suite to hybrid computed tomography–angiography system

Abstract

To evaluate the operational efficiency gained from conversion of a single interventional radiology suite to a hybrid CT-angiography (Angio-CT) system at a single academic tertiary care center. The total number of interventional procedures and diagnostic CT exams performed in 29 rooms (20 DR, 7 IR, 2 shared between divisions) was calculated in the 24 months before conversion of an IR suite to Angio-CT and 12 months after conversion. This data was used to calculate the number of IR procedures (Global IR/month) and diagnostic CTs per month (Global CT/month) in both before and after conversion periods. The change in these values across time periods was calculated and defined as baseline institutional growth. Baseline institutional growth was then compared against the change in the number of IR procedures performed in the before and after periods in the converted room (Angio-CT/month) and the number of diagnostic CTs performed in the before and after periods in the shared rooms (Shared CT/month). The ratio of (Shared CT/Month):(Global CT/month) and of (Angio-CT/month):(Global IR/Month) was calculated and defined as the change in operational efficiency. Within these 29 rooms, 105,143 diagnostic CT scans and IR procedures were performed in the 24 months between March 2016 and February 2018, and 71,103 in the 12 months between March 2018 and February 2019. The percent change in Global CT and Global IR from the before to the after periods was 39.2% and 3.1%, respectively. Shared CT per month and Angio-CT per month increased by 46.7% and 12.0% across the same time periods, respectively. The ratio of the percent increase in Angio-CT per month to percent increase in Global IR per month, the change in IR operational efficiency, was 3.87. The ratio of the percent increase in Shared CT per month to percent increase in Global CT per month, the change in DR operational efficiency, was 1.19. Improved operational efficiency within both diagnostic and interventional radiology was observed after conversion of a traditional IR suite to an Angio-CT system.