Neuroradiology: Small Tricks to Avoid Big Misses (2026)-RC4051922-2026

Video Transcription

Video Summary

The transcript covers several neuroradiology teaching talks focused on recognizing important MRI and CT patterns in newborns, CSF disorders, hemorrhage, and spine disease.<br /><br />The neonatal MRI section explains how brain injury patterns depend on gestational age, severity and duration of hypoxia/hypotension, and timing of imaging. Premature infants are especially vulnerable to white matter injury, which can later appear as cerebral palsy. In term neonates, profound brief hypoxia typically injures the basal ganglia, thalamus, and perirolandic cortex, while prolonged moderate hypoxia causes watershed or diffuse cortical injury. Hypoglycemia in newborns preferentially affects posterior brain regions. The speaker also stresses that diffusion-weighted imaging and ADC maps are the most important sequences early after injury, and that therapeutic hypothermia delays diffusion changes. A separate neurometabolic disorder, maple syrup urine disease, is highlighted as a classic mimic of hypoxic injury.<br /><br />The CSF disorders talk reviews hydrocephalus, spontaneous intracranial hypotension from spinal CSF leaks, ventriculitis, idiopathic intracranial hypertension, and the need to distinguish Chiari I malformation from brain sagging due to CSF leak. Important signs include ventral epidural CSF collections, venous sinus narrowing, hemocytosis, and brain sag.<br /><br />The hemorrhage section emphasizes using history, age, hemorrhage location, CTA spot sign, and repeat imaging to identify causes such as diffuse axonal injury, venous infarction, cerebral amyloid angiopathy, hemorrhagic transformation, and reperfusion-related MRI/CT staining.<br /><br />Finally, the spine lecture warns radiologists not to miss extra-spinal disease, cord infarct, CSF leak signs, cord herniation, arachnoid web/cyst, dural AV fistula, and traumatic fractures, stressing the value of diffusion imaging and cross-sectional imaging over plain radiographs.

Keywords

neonatal MRI

hypoxic ischemic injury

white matter injury

basal ganglia thalamus

diffusion-weighted imaging

hypoglycemia

maple syrup urine disease

CSF leak

hydrocephalus

intracranial hemorrhage

spine disease