Authors: Naomi Morita Masafumi Harada Junichiro Satomi Yuka Terasawa Ryuji Kaji Shinji Nagahiro
Publish Date: 2012/11/16
Volume: 55, Issue: 4, Pages: 399-403
Abstract
The relationships between diffusion lesions and risk scores for patients with a Transient ischemic attack TIA and the optimal timing for diffusion lesion screening have not been characterized The purpose of our study was to evaluate the appearance of diffusionweighted imaging DWI lesions during followup examinations of patients with TIA or minor stroke without initial DWI lesionsWe identified 31 patients who did not show diffusion lesions in initial DWI A second magnetic resonance imaging MRI examination was performed 24 h after the initial MRI and the patients were divided into two groups based on the results Demographic and clinical data including initial National Institutes of Health Stroke Scale scores ABCD and ABCD2 scores and other MRI findings were evaluated The data were analyzed using Spearman’s rank tests and unpaired t testsTen patients 323 showed diffusion lesions on the second DWI examination Both risk scores were higher in these patients compared with patients with negative results on followup DWI P 005 unpaired t test and correlated with the length of the TIA R s = 0017 P 005 R s = 0003 P 001 Spearman’s rank test
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