Cortical Cerebellar Infarctions Associated With Patent Foramen Ovale in Young Stroke Patients

MRI was performed with a 1.5T magnet (Ingenia, Philips, The Netherlands; diffusion-weighted imaging b-values = 0 and 1,000 s/mm2, TR 4,280 ms, and TE 97 ms). In case of technical problems with the 1.5T MRI scanner, a 3T magnet (Skyra, Siemens, Erlangen, Germany) was used. MRI was analyzed by an experienced rater (DR), blinded to clinical data and MRI sequences other than diffusion-weighted imaging.

Contrast transoesophageal echocardiography (including Valsalva manoeuvre)