Axial CT images at the basal ganglia level show subarachnoid hemorrhage on the right and a chronic lacunar infarct on the left. Axial CT images at the.

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Presentation transcript:

Axial CT images at the basal ganglia level show subarachnoid hemorrhage on the right and a chronic lacunar infarct on the left. Axial CT images at the basal ganglia level show subarachnoid hemorrhage on the right and a chronic lacunar infarct on the left. A, Image from a standard CT scanner. B, Image at a level comparable with that in A acquired on the portable scanner 16 hours later. There is clear visualization of both the hyperattenuated and hypoattenuated lesions with the portable scanner, despite an increased amount of noise and streak artifacts. Z. Rumboldt et al. AJNR Am J Neuroradiol 2009;30:1630-1636 ©2009 by American Society of Neuroradiology