Abstract
Subdural hematoma results from bleeding between the dura and the arachnoid membranes. Most cases of subdural hematoma are secondary to tearing of the bridging veins that drain blood from the surface of the brain to the dural sinuses. Head trauma is the most common cause of subdural hematoma. Brain CT is the most widely used imaging study for acute head trauma owing to its speed, accuracy, and widespread availability. Acute subdural hematoma is visualized on CT as a high-density crescentic collection across the hemispheric convexity. Head CT findings that correlate with poor outcome in subdural hematoma include hematoma thickness, the presence and/or degree of midline brain shift, and reduced patency of the basal cisterns.
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Moreno, M.E., Álamos, F. (2016). Subdural Hematoma. In: Hoffmann Nunes, R., Abello, A., Castillo, M. (eds) Critical Findings in Neuroradiology. Springer, Cham. https://doi.org/10.1007/978-3-319-27987-9_23
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DOI: https://doi.org/10.1007/978-3-319-27987-9_23
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