Susceptibility–Diffusion Mismatch in Hyperacute Stroke: Correlation with Perfusion–Diffusion Mismatch and Clinical Outcome

Dejobert, Maelle; Cazals, X.; Annan, Mariam; Debiais, Séverine; Lauvin, M.-A.; Cottier, Jean-Philippe

doi:10.1016/j.jstrokecerebrovasdis.2016.02.025

Cited by 23 publications

(14 citation statements)

References 26 publications

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“…4,5 However, there have been conflicting results on the association between SWI–diffusion-weighted imaging (DWI) mismatch and the clinical outcome. 4,6 Susceptibility vessel sign (SVS) on susceptibility-weighted imaging (SWI) appears as low-signal intensity in the artery. SVS is considered to result from the paramagnetic and susceptibility effect of the component in thrombi.…”

Section: Introductionmentioning

confidence: 99%

Susceptibility-weighted imaging in post-treatment evaluation in the early stage in patients with acute ischemic stroke

et al. 2018

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Objective This study aimed to investigate the association between abnormal signs on susceptibility-weighted imaging (SWI) and post-treatment outcome in the early stage in patients with acute ischemic stroke. Methods Thirty-seven patients with middle cerebral artery territory infarction were recruited. Baseline and 24-hour follow-up magnetic resonance imaging was performed. Pre- and 24-hour post-treatment clinical conditions were assessed with the National Institutes of Health Stroke Scale (NIHSS) score. Prominent vessel sign (PVS) on SWI and infarcted areas on diffusion-weighted imaging (DWI) were assessed using the Alberta Stroke Program Early CT (ASPECT) score system. Susceptibility vessel sign (SVS) was evaluated and recorded. The associations between image abnormalities and clinical scores were analyzed. Results PVS was found in 35 patients and SVS in seven patients. The extent of PVS was significantly correlated with the post-treatment DWI ASPECT score (r = 0.79), but not with the post-treatment NIHSS score or the post−pre NIHSS difference score. The presence of SVS was significantly correlated with the post-treatment NIHSS score (r = 0.41). Conclusion PVS might be a useful predictor of early imaging prognosis and infarct growth in patients with acute ischemic stroke. SVS is related to a poor early outcome and could be useful for assessing stroke.

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Section: Introductionmentioning

confidence: 99%

Susceptibility-weighted imaging in post-treatment evaluation in the early stage in patients with acute ischemic stroke

et al. 2018

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“…The SWI provides similarly important metabolic information to MTT and OEF, so the penumbra can be demarcated without using a contrast medium and reducing the risk of using contrast medium for people with kidney damage and gadolinium allergies. 7,[13][14][15][16] In addition, SWI is superior to MRA and CT in detecting thrombus in acute posterior cerebral artery infarction. 17 Studies have shown that SWI also plays an important role in predicting the outcome and prognosis in patients with acute stroke.…”

mentioning

confidence: 99%

The Value of Susceptibility-Weighted Imaging (SWI) in Evaluating the Ischemic Penumbra of Patients with Acute Cerebral Ischemic Stroke

Wang

Huang

et al. 2021

NDT

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Background The aim of this study was to discuss the value of susceptibility-weighted imaging (SWI) in evaluating the ischemic penumbra of patients with acute cerebral ischemic stroke. Methods Data were collected from 52 patients with acute cerebral ischemic stroke upon clinical diagnosis and routine examinations of magnetic resonance imaging (MRI), including SWI, diffusion-weighted imaging (DWI), and perfusion-weighted imaging (PWI) within 72 hours after onset in this retrospective study. The methods also included fusing the DWI and SWI images and calculating the volume of anomaly extension of DWI and PWI-MTT (mean transit time) using semi-automatic analysis software. The SWI-DWI and PWI-DWI mismatches were interpreted, and the statistical analysis was completed. Results The two physicians found that the ischemic penumbra consistency is high throughout the SWI-DWI and PWI-DWI mismatches, without a significant difference (P > 0.05). Conclusion SWI-DWI mismatch can prevent the injection of contrast agents and make an accurate diagnosis of acute stroke ischemic penumbra, which helps guide the selection of the clinical therapeutic plan.

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“… 19 Several studies have shown that in patients with acute ischemic stroke, the range of the PVS on SWI was closely related to the range of MTT prolongation on PWI. 20 – 22 The PVS provides perfusion information comparable with the MTT and reflects the range of hypoperfusion.…”

Section: Discussionmentioning

confidence: 99%

Susceptibility-diffusion mismatch correlated with leptomeningeal collateralization in large vessel occlusion stroke

Jiang

Zhang²,

Pang

et al. 2021

J Int Med Res

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Objective To investigate the relationship between asymmetric prominent hypointense vessels (prominent vessel sign, PVS) on susceptibility-weighted imaging (SWI) and leptomeningeal collateralization in patients with acute ischemic stroke due to large vessel occlusion. Methods We retrospectively enrolled patients with M1 segment occlusion of the middle cerebral artery who underwent emergency magnetic resonance imaging and digital subtraction angiography within 24 hours from stroke onset. The extent of PVS on SWI was assessed using the Alberta Stroke Program Early CT Score (ASPECTS). Leptomeningeal collateralization on digital subtraction angiography images was assessed using the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) scale. Spearman’s rank correlation test was performed to explore the correlation of ASITN/SIR scores with SWI-ASPECTS and SWI-diffusion-weighted imaging (DWI) mismatch scores. Results Thirty-five patients were enrolled. There was no significant correlation between SWI-ASPECTS and ASITN/SIR scores. However, SWI-DWI mismatch scores were positively correlated with ASITN/SIR scores. Conclusion The range of PVS on SWI did not closely reflect the collateral status, while the range of SWI-DWI mismatch was significantly correlated with the leptomeningeal collateralization. In patients with acute anterior circulation stroke due to large vessel occlusion, larger SWI-DWI mismatch was associated with better leptomeningeal collaterals.

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Susceptibility–Diffusion Mismatch in Hyperacute Stroke: Correlation with Perfusion–Diffusion Mismatch and Clinical Outcome

Cited by 23 publications

References 26 publications

Susceptibility-weighted imaging in post-treatment evaluation in the early stage in patients with acute ischemic stroke

Susceptibility-weighted imaging in post-treatment evaluation in the early stage in patients with acute ischemic stroke

The Value of Susceptibility-Weighted Imaging (SWI) in Evaluating the Ischemic Penumbra of Patients with Acute Cerebral Ischemic Stroke

Susceptibility-diffusion mismatch correlated with leptomeningeal collateralization in large vessel occlusion stroke

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