IVH	One reader classified an infant’s scans as having no or an uncertain IVH and the other reader classified the scan as having probable or definite IVH.
Ventriculomegaly	One reader classified an infant’s scans as having no or mild ventriculomegaly and the other reader classified the scan as having moderate or severe ventriculomegaly.
Hyperechoic lesion	One reader classified an infant’s scans as having no hyperechoic lesion in the white matter and the other reader reported the presence of a hyperechoic lesion.
Hypoechoic lesion	One reader classified an infant’s scans as having no hypoechoic lesion in the white matter and the other reader reported the presence of a hypoechoic lesion.