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American Journal of Roentgenology, Vol 171, 1487-1490, Copyright © 1998 by American Roentgen Ray Society
ARTICLES |
YJ Kim, KH Chang, IC Song, HD Kim, SO Seong, YH Kim and MH Han
Department of Radiology, Seoul National University College of Medicine and Institute of Radiation Medicine, South Korea.
OBJECTIVE: The purpose of this study was to determine the differences in signal intensity between brain abscesses and necrotic or cystic tumors on diffusion-weighted MR imaging. CONCLUSION: Five consecutive patients with proven brain abscesses and four patients with proven cystic or necrotic brain tumors were prospectively evaluated with diffusion-weighted imaging. On diffusion-weighted imaging, brain abscesses showed markedly hyperintense signal in all five patients, whereas necrotic or cystic brain tumors revealed hypointense signal in all four patients. Diffusion-weighted imaging may allow the differentiation of brain abscess from necrotic or cystic brain tumor.
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