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AJNR - American Journal of Neuroradiology

Published ahead of print on August 6, 2009
doi: 10.3174/ajnr.A1603

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Review of Portable CT with Assessment of a Dedicated Head CT Scanner

Z. Rumboldt^a, W. Huda^a and J.W. All^b

^aFrom the Department of Radiology and Radiological Sciences (Z.R., W.H.)
^bCollege of Medicine (J.W.A.), Medical University of South Carolina, Charleston, SC.

View larger version (109K): [in this window] [in a new window]   Fig 1. CereTom portable CT scanner.

View larger version (76K): [in this window] [in a new window]   Fig 2. Axial CT images at the level of the middle cerebellar peduncles show blood clot within the fourth ventricle. A, Image from the portable CereTom scanner. B, Image at a level comparable with that in A acquired on a standard clinical scanner 12 hours later. Note relatively increased noise, however, with clear visualization of the hyperattenuated lesion with the portable scanner.

View larger version (77K): [in this window] [in a new window]   Fig 3. 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.

View larger version (52K): [in this window] [in a new window]   Fig 4. Axial CT images at the centrum semiovale level show a small left frontal hemorrhage corresponding to shear injury. A, Image from a standard scanner. B, Image at a level comparable with that in A acquired on the portable scanner 8 hours later. Slightly better visualization of the hyperattenuated lesion with the portable scanner is likely due to interval clot retraction and development of perilesional edema.