Abstract #4731
            Degeneration of Functional and Structural Connection between the Two Hemispheres in AD and MCI
                      Jianli Wang                     1                    , Zhiqun Wang                     2                    , Han 						Zhang                     3                    , Robert Mchugh                     1                    , Xiaoyu Sun                     1                    , 						Kuncheng Li                     2                    , and Qing X. Yang                     1,4          
            
            1
           
           Radiology, Penn State College of Medicine, 
						Hershey, PA, United States,
           
            2
           
           Radiology, 
						Xuanwu Hospital of Capital Medical University, Beijing, 
						China,
           
            3
           
           Center for Cognition and Brain 
						Disorders, Hangzhou Normal University, Hangzhou, 
						Zhejiang, China,
           
            4
           
           Neurosurgery, 
						Penn State College of Medicine, Hershey, PA, United 
						States
          
            
          Alzheimer's disease (AD) patients perform poorly on 
						tasks that require interhemispheric communication, which 
						suggests a deficit in the interhemispheric integration 
						of information. To investigate the relationship between 
						the interhemisphere functional deficits and degeneration 
						of the white matter connections in the AD, we 
						quantitatively measured interhemispheric functional 
						connectivity using resting-state fMRI and voxel-mirrored 
						homotopic connectivity method, together with the brain 
						diffusion parameters with diffusion tensor imaging in 
						the AD and mild cognitive impairment patients and 
						compared with those in the cognitive normal healthy 
						controls.
         
				
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