Higher prevalence of cortical lesions observed in patients with acute stroke using high-resolution diffusion-weighted imaging
| Autor: | K, Benameur, J L, Bykowski, M, Luby, S, Warach, L L, Latour |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Aged 80 and over Cerebral Cortex Male Echo-Planar Imaging Cerebral Infarction Middle Aged Image Enhancement Sensitivity and Specificity Article Diffusion Magnetic Resonance Imaging Image Processing Computer-Assisted Humans Female cardiovascular diseases Mathematical Computing Aged Retrospective Studies |
| Zdroj: | AJNR. American journal of neuroradiology. 27(9) |
| ISSN: | 0195-6108 |
| Popis: | Ischemic lesion conspicuity on routine diffusion-weighted imaging (DWI, 30 seconds) was compared with an improved sequence (high-resolution DWI [DWI-HR], 256 seconds) having increased spatial resolution and signal to noise and decreased eddy current artifact in 42 patients with acute ischemic stroke. Total lesion volumes were similar; however, twice as many lesions were identified on DWI-HR, predominately in cortical gray matter. Modest improvements to imaging resulted in increased conspicuity, potentially affecting diagnosis, suspected pathogenic mechanism, and therapeutic decision. |
| Databáze: | OpenAIRE |
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