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Diffusion Measurements in Intracranial Hematomas: Implications for MR Imaging of Acute Stroke

Scott W. AtlasGo,a, Philip DuBoisa, Michael B. Singera and Dongfeng Lua

a From the Department of Radiology (S.W.A.), Stanford University Medical Center, Stanford, CA, and the Department of Radiology (S.W.A., P.D., M.B.S., D.L.), Mount Sinai Medical Center, New York, NY.



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  		FIG 1. Average ADC value versus putative biophysical state in intracranial hematomas



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  		FIG 2. ADC map in case of hyperacute intracranial hematoma.

A, T1-weighted images (600/11/1). Left subinsular hematoma is isointense to brain.

B, T2-weighted images (3600/90/1). Left subinsular hematoma is hyperintense to brain, with thin, peripheral rim of marked hypointensity.

C, T2*-weighted gradient-echo images (500/30/1). Left subinsular hematoma is more prominent.

D, Diffusion-weighted images show central high intensity.

E, Calculated ADC maps show marked hypointensity indicating restricted diffusion.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X