Abstract WP181: Effect of RapidAI Imaging Software Implementation on Workflow Metrics in Acute Ischemic Stroke Care

Abstract

Background: Timely intervention is crucial for patients with acute ischemic stroke. The RapidAI imaging system (RAPID) was implemented to enhance the speed and efficiency of care delivery. We evaluated the impact of RAPID on various metrics in the patient care pathway. Methods: In this retrospective observational study, we analyzed consecutive patients who presented to our hospital ER with acute ischemic stroke and who were treated with Intravenous Thrombolysis (IVT) or mechanical thrombectomy between December 20, 2014, and April 20, 2024. Patients were divided into pre-RAPID (n =186) and post-RAPID (n =264) groups based on the implementation date of the RAPID system (September 1, 2019). We compared Door to Non-contrast CT (NCCT), Door to CT Angiography (CTA) / Perfusion Imaging, Door to IVT, and Door to Puncture / first pass for thrombectomy, between the two groups using Fisher’s exact test. Results: For Door to CT, no significant difference was observed between pre-RAPID and post-RAPID groups; 74% of patients in the post-RAPID group and 71% in the pre-RAPID group received NCCT within 45 minutes ( p = 0.44). Significant improvements were observed in Door to CTA/Perfusion times; 90% of patients received vessel or perfusion imaging within 150 minutes post-RAPID compared to 70% pre-RAPID ( p = 0.01), and 87% received imaging within 120 minutes post-RAPID compared to 70% pre-RAPID ( p = 0.031). For Door to IVT, 96% of patients received treatment within 120 minutes post-RAPID compared to 82% pre-RAPID ( p = 0.015). For thrombectomy, there was a trend toward faster door to puncture post-RAPID; 70% of patients were treated within 150 minutes post-RAPID compared to 62% pre-RAPID ( p = 0.36), and 90% were treated within 210 minutes post-RAPID compared to 81% pre-RAPID ( p = 0.12). Similarly, a trend toward faster Door to First Pass times was observed post-RAPID, with 88% treated within 240 minutes compared to 80% pre-RAPID ( p = 0.20). Conclusions: RapidAI Implementation was associated with significant improvements in key workflow metrics, notably in Door to Vessel/Perfusion Imaging and Door to IVT. These findings suggest that RAPID enhances the efficiency of patient care delivery in acute ischemic stroke. Further studies with larger sample sizes are warranted.

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