Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12872-019-1035-1/MediaObjects/12872_2019_1035_Fig1_HTML.png)
a Conventional T2-weighted imaging showing a single ischemic brain lesion in a female AF patient aged 63 years without stroke risk factors and (b) Fluid-attenuated inverse recovery (FLAIR) showing a single ischemic brain lesion in a male AF patient aged 50 years without stroke risk factors