In 2014, the ABCD3-I score or ABCD3-I (d,c/i) score [14,15] was introduced, encompassing additional items such as dual TIA, neuroimaging revealing old or new infarction on DWI sequence of MRI, and ipsilateral carotid artery stenosis or major cerebral artery > 50%. This evidence concerns the gene ABCD3 and transient ischemic attack.