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A pictorial review of CT imaging features in hypoxic brain injury
EP29169
Poster Title: A pictorial review of CT imaging features in hypoxic brain injury
Submitted on 14 Sep 2018
Author(s): R. Vaja, E. Carr, W. Topping, A. Patel, K. Jain
Affiliations: East and North Hertfordshire NHS Trust
This poster was presented at BIR 2018
Poster Views: 676
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Poster Information
Abstract: This review aims to illustrate the important CT features of hypoxic brain injury in adults following insults such as out-of-hospital cardiac arrest.

The cases included are selected from a large District General Hospital (Lister Hospital) over the preceding 12 months. We will illustrate which areas of the brain are most vulnerable, the variability in CT appearances of the commonly seen imaging signs.

The pathognomic imaging features include focal or generalised loss of grey-white matter differentiation, hypodense basal ganglia sign and the pseudo-subarachnoid sign.
Summary: Hypoxic brain injury (HBI, also known as hypoxic-ischemic or anoxic brain injury) in adults is seen after a global reduction in oxygen supply to the brain tissues, commonly caused by cardiac arrest.
The CT imaging features at each stage of the condition reflects the vulnerability of certain brain structures to hypoxia, and this will be demonstrated in the selected cases.
References: 1)Benjamin Y. Huang, Mauricio Castillo. Hypoxic-Ischemic Brain Injury: Imaging Findings from Birth to Adulthood. RadioGraphics2008; 28:417–439.
2)R.S. Howard P.A. Holmes A. Siddiqui D. TreacherI. TsiropoulosM. Koutroumanidis. Hypoxic–ischaemic brain injury: imaging and neurophysiology abnormalities related to outcome. QJM: An International Journal of Medicine. 2012; Vol 105, Issue 6; 551–61.
3)DwarakanathS, Bansal A, RudrappaS, Gopal S, VenkatramanaNK. White cerebellum sign -A case report and review of literature. J PediatrNeurosci. 2006;1:22–3.
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