| 英文摘要 |
Background: Magnetic resonance imaging (MRI) has been increasingly used in emergency departments (EDs) worldwide. However, little is known regarding MRI for acute ischemic stroke (AIS) in EDs in Taiwan. The aim of this study is to investigate MRI for AIS in EDs using a Taiwan nationwide database. Methods: A cross-sectional study was conducted using registration and claims data of 1 million patients from 2010 to 2013 obtained from the Longitudinal Health Insurance Database 2010 (LHID2010). Patients with newly diagnosed ischemic stroke were divided into ED with MRI and ED without MRI groups. Data on final disposition, length of hospital stay, and medical costs was collected. Results: A total of 2284 patients with ischemic stroke were identified. All patients were admitted to the hospital after receiving diagnosis in the ED. Among them, 7.8% (179/2284) received MRI in the ED. The rate of MRI use increased from 1.2% to 2.8% during the study period. Patients who received MRI in the ED required more computed tomography imaging (87.2% vs. 74.9%, p = 0.0001) and longer hospital stay (17 days vs. 13 days, p = 0.002). No significant difference was observed in total hospital costs or mortality rate. Conclusion: A steady increase in brain MRI for ischemic stroke in EDs in Taiwan was observed. Additional studies are required to determine the cost-effectiveness of brain MRI for ischemic stroke in an ED setting |
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