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Blaszczyk E, Hellwig S, Saad H, Ganeshan R, Stengl H, Nolte CH, Fiebach JB, Endres M, Kuhnt J, Gröschel J, Schulz-Menger J, Scheitz JF. Myocardial injury in patients with acute ischemic stroke detected by cardiovascular magnetic resonance imaging. Eur J Radiol 2023; 165:110908. [PMID: 37315403 DOI: 10.1016/j.ejrad.2023.110908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/29/2023] [Accepted: 05/30/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Patients with acute ischemic stroke (AIS) are at high risk of adverse cardiovascular events. Until now, the burden of myocardial injury derived from cardiovascular magnetic resonance imaging (CMR) has not been established in this population. METHODS Patients with AIS underwent CMR at 3 Tesla within 120 h after the index stroke as part of a prospective, single-center study. Patients with persistent atrial fibrillation were excluded. Morphology and function of both cardiac chambers and atria were assessed applying SSFP cine. Myocardial tissue differentiation was based on native and contrast-enhanced imaging including late gadolinium enhancement (LGE) after 0.15 mmol/kg gadobutrol for focal fibrosis and parametric T2- and T1-mapping for diffuse findings. To detect myocardial deformation global longitudinal (GLS), circumferential (GCS) and radial (GRS) strain was measured applying feature tracking. Cardiac troponin was measured using a high-sensitivity assay (99th percentile upper reference limit 14 ng/L). T2 mapping values were compared with 20 healthy volunteers. RESULTS CMR with contrast media was successfully performed in 92 of 115 patients (mean age 74 years, 40% female, known myocardial infarction 6%). Focal myocardial fibrosis (LGE) was detected in 31 of 92 patients (34%) of whom 23/31 (74%) showed an ischemic pattern. Patients with LGE were more likely to have diabetes, prior myocardial infarction, prior ischemic stroke, and to have elevated troponin levels compared to those without. Presence of LGE was accompanied by diffuse fibrosis (increased T1 native values) even in remote cardiac areas as well as reduced global radial, circumferential and longitudinal strain values. In 14/31 (45%) of all patients with LGE increased T2-mapping values were detectable. CONCLUSIONS More than one-third of patients with AIS have evidence of focal myocardial fibrosis on CMR. Nearly half of these changes may have acute or subacute onset. These findings are accompanied by diffuse myocardial changes and reduced myocardial deformation. Further studies, ideally with serial CMR measurements during follow-up, are required to establish the impact of these findings on long-term prognosis after AIS.
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Affiliation(s)
- E Blaszczyk
- Charité Universitätsmedizin Berlin, Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center a joint cooperation between the Charité Medical Faculty and the Max-Delbrueck Center for Molecular Medicine , HELIOS Klinikum Berlin Buch, Cardiology, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - S Hellwig
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany
| | - H Saad
- Charité Universitätsmedizin Berlin, Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center a joint cooperation between the Charité Medical Faculty and the Max-Delbrueck Center for Molecular Medicine , HELIOS Klinikum Berlin Buch, Cardiology, Berlin, Germany
| | - R Ganeshan
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany
| | - H Stengl
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany
| | - C H Nolte
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany; Berlin Institute of Health (BIH), Germany
| | - J B Fiebach
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany
| | - M Endres
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany; ExcellenceCluster NeuroCure, Germany; German Center for Neurodegenerative Diseases (DZNE), partner site Berlin, Germany; Berlin Institute of Health (BIH), Germany
| | - J Kuhnt
- Charité Universitätsmedizin Berlin, Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center a joint cooperation between the Charité Medical Faculty and the Max-Delbrueck Center for Molecular Medicine , HELIOS Klinikum Berlin Buch, Cardiology, Berlin, Germany
| | - J Gröschel
- Charité Universitätsmedizin Berlin, Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center a joint cooperation between the Charité Medical Faculty and the Max-Delbrueck Center for Molecular Medicine , HELIOS Klinikum Berlin Buch, Cardiology, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - J Schulz-Menger
- Charité Universitätsmedizin Berlin, Working Group on Cardiovascular Magnetic Resonance, Experimental and Clinical Research Center a joint cooperation between the Charité Medical Faculty and the Max-Delbrueck Center for Molecular Medicine , HELIOS Klinikum Berlin Buch, Cardiology, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - J F Scheitz
- Klinik für Neurologie mit Experimenteller Neurologie, Charité Universitätsmedizin Berlin und Centrum für Schlaganfallforschung, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.
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