brain injury is the main cause of neonatal adverse neurodevelopmental outcomes. Early diagnosis and treatment are of great importance for reducing neonatal mortality and disability and improving prognosis.Since the introduction of cranial ultrasound
it has proved to be an important diagnostic tool for evaluating neonatal brain morphology. Compared with CT and MRI
cranial ultrasound is more convenient
without radiation exposure or sedation
especially suitable for children with severe diseases. This paper reviews the application of cranial ultrasound and its new technology in common brain injury in neonates.