{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T13:29:26Z","timestamp":1777469366235,"version":"3.51.4"},"reference-count":56,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Brain Connectivity"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>The corpus callosum (CC) plays a key role in mediating interhemispheric connectivity and developing functional hemispheric asymmetries. The purpose of this study was to investigate the changes in CC microstructure accompanying interhemispheric language reorganization in patients with brain arteriovenous malformations (AVMs).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Forty-one patients with an unruptured AVM located in anatomically defined language areas underwent functional magnetic resonance imaging and diffusion tensor imaging. Hemispheric dominance in Broca's area (BA) and Wernicke's area (WA) was assessed separately. Right-sided or bilateral language dominance was classified as atypical lateralization. The CC was segmented into five subregions, and the mean fractional anisotropy (FA) was extracted. The relationship between callosal FA and language lateralization patterns was statistically analyzed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      We observed atypical language lateralization in 16 (39.0%) patients. Patients with atypical lateralization exhibited significantly higher mean FA values in the total CC (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.002) and the anterior (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.047), midanterior (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.001), and midposterior (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.043) subregions. Significant interaction effects of BA and WA lateralization were found for FA values in the total CC (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.005) and the midanterior subregion (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.004).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>These results indicate that AVM patients with atypical language lateralization exhibit higher callosal FA values, reflecting greater interhemispheric connectivity. Our findings contribute additional insights into the understanding of functional and structural plasticity of the human brain under pathological states.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Impact statement<\/jats:title>\n                    <jats:p>Brain arteriovenous malformations (AVMs) are congenital lesions that frequently lead to interhemispheric language reorganization. In this study, by combining diffusion tensor imaging and functional magnetic resonance imaging, we investigated the relationship between callosal fractional anisotropy (FA) and language reorganization in patients with AVMs. We found that callosal FA was significantly higher in patients with atypical language lateralization, especially in those with crossed lateralization of Broca's and Wernicke's areas. This study demonstrated the remodeling of the corpus callosum microstructure accompanying language reorganization in AVM patients, providing insights into the structural and functional plasticity of the human brain associated with congenital cerebrovascular disease.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/brain.2020.0853","type":"journal-article","created":{"date-parts":[[2020,12,26]],"date-time":"2020-12-26T01:18:02Z","timestamp":1608945482000},"page":"447-456","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Corpus Callosum Diffusion Anisotropy and Hemispheric Lateralization of Language in Patients with Brain Arteriovenous Malformations"],"prefix":"10.1177","volume":"11","author":[{"given":"Maogui","family":"Li","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Jun","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Pengjun","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Shuzhe","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Rui","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Yi","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China."}]},{"given":"Yong","family":"Cao","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China."},{"name":"China National Clinical Research Center for Neurological Diseases, Beijing, China."},{"name":"Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China."},{"name":"Beijing Key Laboratory of 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