Effects of Age, Gender and Hemispheric Location on T2 Hypointensity in the Pulvinar at 3T.

Pulvinar signal intensity decrease on T2-weighted images has been reported in some neurological abnormalities. We aimed to define the normal T2 signal hypointensity pattern present in the pulvinar to avoid erroneous radiological interpretation. One hundred and forty-two subjects (54 men and 88 women; age range 9-91 years) with unremarkable brain 3T MR findings were enrolled.

Anatomical patterns and correlated MRI findings of non-perinatal hypoxic-ischaemic encephalopathy.

Non-perinatal hypoxic-ischaemic encephalopathy (HIE) has varying anatomical patterns dependent on the type of insult, the degree and duration of cerebral hypoxia, or presence and degree of hypoperfusion. Profound insults can affect the entire cerebral cortex or just the perirolandic cortex, the cerebellum and the deep grey matter structures. Less severe insults may affect only the watershed regions.

Incidence, radiographical features, and proposed mechanism for pneumocephalus from intravenous injection of air.

Background: Pneumocephalus typically implies a traumatic breach in the meningeal layer or an intracranial gas-producing infection. Unexplained pneumocephalus on a head computed tomography (CT) in an emergency setting often compels emergency physicians to undertake aggressive evaluation and consultation.

Methods: In this paper, we report three cases of pneumocephalus that appear to result from retrograde injection of air through an intravenous (IV) catheter.

Spontaneous thrombosis of congenital cerebral arteriovenous malformation complicated by subdural collection: in utero detection with disappearance in infancy.

We report a case of congenital left temporal lobe arteriovenous malformation (AVM) detected by cranial ultrasound in utero and confirmed immediately after birth by cranial Doppler ultrasound and cranial MRI. The AVM disappeared on follow-up cranial MRI 4 months later. A small left frontal subdural collection was present on these follow-up MR images, which subsequently resolved by the 7 month MRI study.