PMID- 35860295 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220722 IS - 1662-4548 (Print) IS - 1662-453X (Electronic) IS - 1662-453X (Linking) VI - 16 DP - 2022 TI - Structure-Function Decoupling: A Novel Perspective for Understanding the Radiation-Induced Brain Injury in Patients With Nasopharyngeal Carcinoma. PG - 915164 LID - 10.3389/fnins.2022.915164 [doi] LID - 915164 AB - Radiation-induced functional and structural brain alterations are well documented in patients with nasopharyngeal carcinoma (NPC), followed by radiotherapy (RT); however, alterations in structure-function coupling remain largely unknown. Herein, we aimed to assess radiation-induced structure-function decoupling and its importance in predicting radiation encephalopathy (RE). We included 62 patients with NPC (22 patients in the pre-RT cohort, 18 patients in the post-RT-RE(+ve) cohort, and 22 patients in the post-RT-RE(-ve) cohort). A metric of regional homogeneity (ReHo)/voxel-based morphometry (VBM) was used to detect radiation-induced structure-function decoupling, which was then used as a feature to construct a predictive model for RE. Compared with the pre-RT group, patients in the post-RT group (which included post-RT-RE(+ve) and post-RT-RE(-ve)) showed higher ReHo/VBM coupling values in the substantia nigra (SN), the putamen, and the bilateral thalamus and lower values in the brain stem, the cerebellum, the bilateral medial temporal lobes (MTLs), the bilateral insula, the right precentral and postcentral gyri, the medial prefrontal cortex (MPFC), and the left inferior parietal lobule (IPL). In the post-RT group, negative correlations were observed between maximum dosage of RT (MDRT) to the ipsilateral temporal lobe and ReHo/VBM values in the ipsilateral middle temporal gyrus (MTG). Moreover, structure-function decoupling in the bilateral superior temporal gyrus (STG), the bilateral precentral and postcentral gyri, the paracentral lobules, the right precuneus and IPL, and the right MPFC exhibited excellent predictive performance (accuracy = 88.0%) in identifying patients likely to develop RE. These findings show that ReHo/VBM may be a novel effective imaging metric that reflects the neural mechanism underlying RE in patients with NPC. CI - Copyright (c) 2022 Kang, Chen, Ding, Li, Gao, Liu and Zhang. FAU - Kang, Ya-Fei AU - Kang YF AD - Shaanxi Provincial Key Research Center of Child Mental and Behavioral Health, School of Psychology, Shaanxi Normal University, Xi'an, China. FAU - Chen, Rui-Ting AU - Chen RT AD - Department of Radiology, Xiangya Hospital, Central South University, Changsha, China. FAU - Ding, Hao AU - Ding H AD - Department of Radiology, Affiliated Hospital of Guilin Medical University, Guilin, China. AD - Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China. FAU - Li, Li AU - Li L AD - State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. FAU - Gao, Jian-Ming AU - Gao JM AD - State Key Laboratory of Oncology in South China, Department of Radiation Oncology, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. FAU - Liu, Li-Zhi AU - Liu LZ AD - State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China. FAU - Zhang, You-Ming AU - Zhang YM AD - Department of Radiology, Xiangya Hospital, Central South University, Changsha, China. AD - National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, China. LA - eng PT - Journal Article DEP - 20220704 PL - Switzerland TA - Front Neurosci JT - Frontiers in neuroscience JID - 101478481 PMC - PMC9289669 OTO - NOTNLM OT - ReHo/VBM OT - individual prediction OT - nasopharyngeal carcinoma OT - radiation encephalopathy OT - structure-function coupling COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/07/22 06:00 MHDA- 2022/07/22 06:01 PMCR- 2022/01/01 CRDT- 2022/07/21 02:28 PHST- 2022/04/07 00:00 [received] PHST- 2022/06/09 00:00 [accepted] PHST- 2022/07/21 02:28 [entrez] PHST- 2022/07/22 06:00 [pubmed] PHST- 2022/07/22 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fnins.2022.915164 [doi] PST - epublish SO - Front Neurosci. 2022 Jul 4;16:915164. doi: 10.3389/fnins.2022.915164. eCollection 2022.