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Table 1: Imaging characteristics: correlation of lesion patterns with stroke subtype
Lesion Pattern CE LAA SAO Cryptogenic ≥2 Causes Other Total No.
Single Lesion 
    Corticosubcortical 22^** 18^* 0 8 1 2 51
    Cortical 14 8 0 19 1 0 42
    Subcortical 
        ≥15 mm 15 10 0 27^*** 1 1 54
        <15 mm 9 16 124^*** 2 3 1 155
Scattered Lesions in 1 VT 
    In 1 AC 8 5 0 8 0 1 21
    In the PC 6 3 0 6 2 1 17
Multiple Lesions in Multiple VT 
    Unilateral AC 23 39^*** 0 17 4 2 85
    PC 8 7 0 5 1 0 22
    Unilateral AC and PC 6 5 0 9 3 2 25
    Bilateral AC 11 6 0 6 1 1 25
    Bilateral AC and PC 9^** 0 0 4 0 0 13
Total 131 117 124 111 17 10 510
Note:— VT indicates vascular territory; CE, cardioembolism; LAA, large-artery arterosclerosis; SAO, small-artery occlusion; AC, anterior circulation; PC, posterior circulation.
P values by the Fisher exact test:
* P < 0.05;
** P < 0.01;
*** patients with DW/MR imaging lesions <15 mm were classified as SAO by definition, P < 0.001.