@article {Langer:December 2007:0004-8461:532,
	author = "Langer,",
	author = "Neidl van Gorkom,",
	author = "Al Kaabi,",
	author = "Torab,",
	author = "Czechowski,",
	author = "Nagi,",
	author = "Ashish,",
	title = "Comparison of two imaging protocols for acute stroke: Unenhanced cranial CT versus a multimodality cranial CT protocol with perfusion imaging",
	journal = "Australasian Radiology",
	volume = "51",
	year = "December 2007",
	abstract = "Summary <P></P>The aim of the study was to validate a multimodality cranial computed tomography (CCT) protocol for patients with acute stroke in the United Arab Emirates as a basic imaging procedure for a stroke unit. Therefore, a comparative study was conducted between two groups: retrospective, historical group 1 with early unenhanced CCT and prospective group 2 undergoing a multimodality CCT protocol. Follow-up unenhanced CCT &#62;48&#8201;h served as gold standard in both groups. Group 1: Early unenhanced CCT of 50 patients were evaluated retrospectively, using Alberta Stroke Program Early CT Score, and compared with the definite infarction on follow-up CCT. Group 2: 50 patients underwent multimodality CCT (unenhanced CCT, perfusion studies: cerebral blood flow, cerebral blood volume, mean transit time and CT angiography) &#60;8&#8201;h after clinical onset and follow-up studies. Modified National Institute of Health Stroke Scale was used clinically in both groups. Group 1 showed 38 men, 12 women, clinical onset 2-8&#8201;h before CCT and modified National Institute of Health Stroke Scale 0-28. Group 2 included 38 men, 12 women, onset 3-8&#8201;h before CCT, modified National Institute of Health Stroke Scale 0-28. Sensitivity was 58.3% in group 1 and 84.2% in group 2. Computed tomography angiography detected nine intracranial occlusions/stenoses. The higher sensitivity of the multimodality CCT protocol justifies its use as a basic diagnostic tool for the set-up of a first-stroke unit in the United Arab Emirates.",
	pages = "532-537(6)",
	url = "http://www.ingentaconnect.com/content/bsc/ara/2007/00000051/00000006/art00006"
	doi = "doi:10.1111/j.1440-1673.2007.01901.x"
}