Fig. 4From: The value of double inversion recovery MRI sequence in assessment of epilepsy patientsRight centrum semi-ovale nodular heterotopia in a 12 years old female patient. Coronal MPGRE T1 (a), T2 (b), FLAIR (c) and DIR (d) images. A heterotopic grey matter nodule noted following the signal of the grey matter in all pulse sequences (arrows in a–d), however, most conspicuous on 3D T1 and DIRBack to article page