This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
[{'content': 'A preterm baby suffered perinatal asphyxia and was found to have Periventricular leucomalacia on CNS imaging, as shown below:Which imaging modality was used? \nSelect and explain. \nA. MRI brain, B. CECT head, C. SPECT brain, D. Transcranial ultrasound', 'role': 'user'}, {'content': 'Answer: D \nExplanation: d. Transcranial ultrasoundThis picture shows Transcranial ultrasound of an infant done through the open anterior fontanelle.It shows the 2 lateral ventricles & areas of echogenicity near it, suggestive of PVL', 'role': 'assistant'}]