Andreas Charidimou1, Gregoire Boulouis2, Marco Pasi2, Eitan Auriel2, Ellis S van Etten2, Kellen Haley2, Alison Ayres2, Kristin M Schwab2, Sergi Martinez-Ramirez2, Joshua N Goldstein2, Jonathan Rosand2, Anand Viswanathan2, Steven M Greenberg2, M Edip Gurol2. 1. From the Hemorrhagic Stroke Research Program (A.C., G.B., M.P., E.A., E.S.v.E., K.H., A.A., K.M.S., S.M.-R., A.V., S.M.G., M.E.G.), Department of Neurology, Massachusetts General Hospital Stroke Research Center, Harvard Medical School, Boston; Université Paris-Descartes (G.B.), INSERM UMR 894, Department of Neuroradiology, Centre Hospitalier Sainte-Anne, Paris, France; and Division of Neurocritical Care and Emergency Neurology (J.N.G., J.R.), Massachusetts General Hospital, Harvard Medical School, Boston. andreas.charidimou.09@ucl.ac.uk. 2. From the Hemorrhagic Stroke Research Program (A.C., G.B., M.P., E.A., E.S.v.E., K.H., A.A., K.M.S., S.M.-R., A.V., S.M.G., M.E.G.), Department of Neurology, Massachusetts General Hospital Stroke Research Center, Harvard Medical School, Boston; Université Paris-Descartes (G.B.), INSERM UMR 894, Department of Neuroradiology, Centre Hospitalier Sainte-Anne, Paris, France; and Division of Neurocritical Care and Emergency Neurology (J.N.G., J.R.), Massachusetts General Hospital, Harvard Medical School, Boston.
Abstract
OBJECTIVE: To assess MRI-visible enlarged perivascular spaces (EPVS) burden and different topographical patterns (in the centrum semiovale [CSO] and basal ganglia [BG]) in 2 common microangiopathies: cerebral amyloid angiopathy (CAA) and hypertensive arteriopathy (HA). METHODS: Consecutive patients with spontaneous intracerebral hemorrhage (ICH) from a prospective MRI cohort were included. Small vessel disease MRI markers, including cerebral microbleeds (CMBs), cortical superficial siderosis (cSS), and white matter hyperintensities (WMH), were rated. CSO-EPVS/BG-EPVS were assessed on a validated 4-point visual rating scale (0 = no EPVS, 1 = <10, 2 = 11-20, 3 = 21-40, and 4 = >40 EPVS). We tested associations of predefined high-degree (score >2) CSO-EPVS and BG-EPVS with other MRI markers in multivariable logistic regression. We subsequently evaluated associations with CSO-EPVS predominance (i.e., CSO-EPVS > BG-EPVS) and BG-EPVS predominance pattern (i.e., BG-EPVS > CSO-EPVS) in adjusted multinomial logistic regression (reference group, BG-EPVS = CSO-EPVS). RESULTS: We included 315 patients with CAA-ICH and 137 with HA-ICH. High-degree CSO-EPVS prevalence was greater in CAA-related ICH vs HA-related ICH (43.8% vs 17.5%, p < 0.001). In multivariable logistic regression, high-degree CSO-EPVS was associated with lobar CMB (odds ratio [OR] 1.33, 95% confidence interval [CI] 1.10-1.61, p = 0.003) and cSS (OR 2.08, 95% CI 1.30-3.32, p = 0.002). Deep CMBs (OR 2.85, 95% CI 1.75-4.64, p < 0.0001) and higher WMH volume (OR 1.02, 95% CI 1.01-1.04, p = 0.010) were predictors of high-degree BG-EPVS. A CSO-EPVS-predominant pattern was more common in CAA-ICH than in HA-ICH (75.9% vs 39.4%, respectively, p < 0.0001). CSO-PVS predominance was associated with lobar CMB burden and cSS, while BG-EPVS predominance was associated with HA-ICH and WMH volumes. CONCLUSIONS: Different patterns of MRI-visible EPVS provide insights into the dominant underlying microangiopathy type in patients with spontaneous ICH.
OBJECTIVE: To assess MRI-visible enlarged perivascular spaces (EPVS) burden and different topographical patterns (in the centrum semiovale [CSO] and basal ganglia [BG]) in 2 common microangiopathies: cerebral amyloid angiopathy (CAA) and hypertensive arteriopathy (HA). METHODS: Consecutive patients with spontaneous intracerebral hemorrhage (ICH) from a prospective MRI cohort were included. Small vessel disease MRI markers, including cerebral microbleeds (CMBs), cortical superficial siderosis (cSS), and white matter hyperintensities (WMH), were rated. CSO-EPVS/BG-EPVS were assessed on a validated 4-point visual rating scale (0 = no EPVS, 1 = <10, 2 = 11-20, 3 = 21-40, and 4 = >40 EPVS). We tested associations of predefined high-degree (score >2) CSO-EPVS and BG-EPVS with other MRI markers in multivariable logistic regression. We subsequently evaluated associations with CSO-EPVS predominance (i.e., CSO-EPVS > BG-EPVS) and BG-EPVS predominance pattern (i.e., BG-EPVS > CSO-EPVS) in adjusted multinomial logistic regression (reference group, BG-EPVS = CSO-EPVS). RESULTS: We included 315 patients with CAA-ICH and 137 with HA-ICH. High-degree CSO-EPVS prevalence was greater in CAA-related ICH vs HA-related ICH (43.8% vs 17.5%, p < 0.001). In multivariable logistic regression, high-degree CSO-EPVS was associated with lobar CMB (odds ratio [OR] 1.33, 95% confidence interval [CI] 1.10-1.61, p = 0.003) and cSS (OR 2.08, 95% CI 1.30-3.32, p = 0.002). Deep CMBs (OR 2.85, 95% CI 1.75-4.64, p < 0.0001) and higher WMH volume (OR 1.02, 95% CI 1.01-1.04, p = 0.010) were predictors of high-degree BG-EPVS. A CSO-EPVS-predominant pattern was more common in CAA-ICH than in HA-ICH (75.9% vs 39.4%, respectively, p < 0.0001). CSO-PVS predominance was associated with lobar CMB burden and cSS, while BG-EPVS predominance was associated with HA-ICH and WMH volumes. CONCLUSIONS: Different patterns of MRI-visible EPVS provide insights into the dominant underlying microangiopathy type in patients with spontaneous ICH.
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