AHW = anterior horn width; AP = anteroposterior; BPD = bronchopulmonary dysplasia; CAT = Capute Cognitive Adaptive Test; CLAMS = Capute Clinical Linguistic Auditory Milestone Scale; CP = cerebral palsy; DQ = developmental quotient; HUS = head ultrasound; IVH = intraventricular hemorrhage; MQ = motor quotient; NEC = necrotizing enterocolitis; NICU = neonatal ICU; NNNS = NICU Network Neurobehavioral Scale; NOR = nonoptimal reflexes subscore; PHH = posthemorrhagic hydrocephalus; PHVD = posthemorrhagic ventricular dilatation; PMA = postmenstrual age; PVHI = periventricular hemorrhagic infarction; PVL = periventricular leukomalacia; RI = resistive index; ROP = retinopathy of prematurity; TOD = thalamooccipital distance; V/B = ventricle/brain; VI = ventricular index; assessment; corrected age = age corrected for degree of prematurity; neurodevelopment; outcome; posthemorrhagic hydrocephalus; posthemorrhagic ventricular dilatation