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Diffusion-weighted imaging as predictor of acute ischemic stroke etiology

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dc.contributor.authorBrunser, Alejandro
dc.contributor.authorMansilla, Eloy
dc.contributor.authorNavia, Victor
dc.contributor.authorMazzon, Enrico
dc.contributor.authorRojo, Alexis
dc.contributor.authorCavada, Gabriel
dc.contributor.authorOlavarría, Verónica
dc.contributor.authorMuñoz Venturelli, Paula
dc.contributor.authorManuel, Pablo
dc.date.accessioned2023-05-05T17:59:21Z
dc.date.available2023-05-05T17:59:21Z
dc.date.issued2021
dc.description.abstractBackground: Topographic patterns may correlate with causes of ischemic stroke. Objective: To investigate the association between diffusionweighted imaging (DWI) and Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification. Methods: We included 1019 ischemic stroke patients. DWI were classified as: i) negative; ii) DWI single lesion (cortico-subcortical, cortical, subcortical ≥20 mm, or subcortical <20 mm); iii) scattered lesions in one territory (small scattered lesions or confluent with additional lesions); and iv) multiple lesions (multiple unilateral anterior circulation [MAC], multiple posterior circulation [MPC], multiple bilateral anterior circulation [MBAC], and multiple anterior and posterior circulations [MAP]). Results: There was a relationship between DWI patterns and TOAST classification (p<0.001). Large artery atherosclerosis was associated with small, scattered lesions in one vascular territory (Odds Ratio [OR] 4.22, 95% confidence interval [95%CI] 2.61–6.8), MPC (OR 3.52; 95%CI 1.54–8.03), and subcortical lesions <20 mm (OR 3.47; 95%CI 1.76–6.85). Cardioembolic strokes correlated with MAP (OR 4.3; 95%CI 1.64–11.2), cortico-subcortical lesions (OR 3.24; 95%CI 1.9–5.5) and negative DWI (OR 2.46; 95%CI 1.1–5.49). Cryptogenic strokes correlated with negative DWI (OR 4.1; 95%CI 1,84–8.69), cortical strokes (OR 3.3; 95%CI 1.25–8.8), MAP (OR 3.33; 95%CI 1.25–8.81) and subcortical lesion ≥20 mm (OR 2.44; 95%CI 1,04–5.73). Lacunar strokes correlated with subcortical lesions diameter <20 mm (OR 42.9; 95%CI 22.7–81.1) and negative DWI (OR 8.87; 95%CI 4.03–19.5). Finally, MBAC (OR 9.25; 95%CI 1.12–76.2), MAP(OR 5.54; 95%CI 1.94–15.1), and MPC (OR 3.61; 95%CI 1.5–8.7) correlated with stroke of other etiologies. Conclusions: A relationship exists between DWI and stroke subtype.
dc.identifier.citationBrunser AM, Mansilla E, Navia V, Mazzon E, Rojo A, Cavada G, Olavarría V, Venturelli PM, Lavados PM. Diffusion-weighted imaging as predictor of acute ischemic stroke etiology. Arq Neuropsiquiatr. 2022 Apr;80(4):353-359. doi: 10.1590/0004-282X-ANP-2021-0080
dc.identifier.doihttps://doi.org/10.1590/0004-282X-ANP-2021-0080
dc.identifier.urihttps://repositorio.udd.cl/handle/11447/7467
dc.language.isoen
dc.subjectAccidente Cerebrovascular
dc.subjectAccidente Cerebrovascular Isquémico
dc.subjectImagen de Difusión por Resonancia Magnética
dc.subjectDiagnóstico
dc.titleDiffusion-weighted imaging as predictor of acute ischemic stroke etiology
dc.typeArticle
dcterms.accessRightsAcceso Abierto
dcterms.sourceArquivos de neuro-psiquiatria
dspace.entity.typePublication

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