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- W2090162040 abstract "We investigated the role of acute-stage diffusion-weighted images (DWIs) for predicting outcome of poor-grade subarachnoid hemorrhage (SAH). This study included 38 patients with poor-grade SAH who underwent DWI within 24 h after onset. DWI findings were divided into three groups on the basis of lesion area: none (N), spotty (S, <or=10 mm(2)), or areal (A, >10 mm(2)). We evaluated the correlation between preoperative DWI findings and clinical outcome, and the characteristics of DWI abnormalities. DWI abnormalities were revealed in 81.6% of cases (group S 34.2%; group A 47.3%). All patients in groups N and S and 73.3% of patients in group A were treated radically. For those patients without rerupture, favorable outcomes were achieved in 100% of group N, 53.8% of group S, and 0% of group A. Abnormal lesions on initial DWI, which resulted in permanent lesions, showed a mean apparent diffusion coefficient ratio to the control value of 0.71, which was significantly lower than 0.95 observed in reversible lesions (P<0.01). We recommend radical treatment for even poor-grade SAH as long as the preoperative DWI shows no or only spotty lesions. DWI may provide an objective means to estimate the outcome of poor-grade SAH." @default.
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- W2090162040 date "2010-01-06" @default.
- W2090162040 modified "2023-10-09" @default.
- W2090162040 title "Acute-Stage Diffusion-Weighted Magnetic Resonance Imaging for Predicting Outcome of Poor-Grade Aneurysmal Subarachnoid Hemorrhage" @default.
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- W2090162040 doi "https://doi.org/10.1038/jcbfm.2009.264" @default.
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