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Table 1: Clinical characteristics of the patients
Model Development
Training Data Set Validation Data Set Total
No. of patients 199 198 397
Age (mean) (yr) 66.36 (SD, 14.02) 67.58 (SD, 13.56) 66.97 (SD, 13.79)
Female 87 (43.7%) 86 (43.4%) 173 (43.6%)
Clinical validation 
    No. of patients 123
    Age (mean) (yr) 72.85 (SD, 11.24)
    No. women 51 (41.5%)
Reason for fast stroke MR imaging 
    Mental change 53 (43.1%)
    Right-sided weakness 12 (9.8%)
    Left-sided weakness 18 (14.6%)
    Dysarthria 23 (18.7%)
    Dizziness 3 (2.4%)
    Facial palsy 4 (3.3%)
    Visual disturbance 3 (2.4%)
    Seizure 5 (4.1%)
    Syncope 2 (1.6%)
Acute ischemic stroke 
    None 67 (54.5%)
    ACA territory 4 (3.3%)
    MCA territory 30 (24.4%)
    PCA territory 2 (1.6%)
    BA/VA territory 12 (9.8%)
    Multiterritorial 8 (6.5%)
LVO 
    None 98 (79.7%)
    ICA 9 (7.3%)
    ACA 1 (0.8%)
    MCA (M1) 6 (4.9%)
    MCA (M2) 6 (4.9%)
    PCA 1 (0.8%)
    BA/VA 2 (1.6%)
No. performing DSA 10 (8.1%)
Note:—ACA indicates anterior cerebral artery; VA, vertebral artery.