NLP-based analysis of radiology reports from hospital 1 containing “stroke,” “neuro deficit,” or “TIA” in the order indication
| Time Period | Total No. of Neuroimaging Studies Performed (CT/MRI) | Estimated No. of Neuroimaging Studies with ASIS Detected (% of Total) | Total No. of Patients Undergoing Neuroimaging | Estimated No. of Patients with ASIS Detected (% of Total) |
|---|---|---|---|---|
| March-April 2020 (COVID-19 pandemic) | 1046 | 254 (24.3%) | 660 | 140 (21.2%) |
| March-April 2017–2019a | 1386 | 274 (19.8%) | 970 | 157 (16.2%) |
| 2019 | 1720 | 314 (18.3%) | 1283 | 178 (13.9%) |
| 2018 | 1234 | 253 (20.5%) | 820 | 149 (18.2%) |
| 2017 | 1204 | 256 (21.3%) | 808 | 144 (17.8%) |
↵a Three-year average.