Browsing by Author "Maier, Stephan"

Now showing items 1-12 of 12

    • Cingulate fasciculus integrity disruption in schizophrenia: a magnetic resonance diffusion tensor imaging study 

      Kubicki, Marek R.; Westin, Carl-Fredrik; Nestor, Paul Gerard; Wible, Cynthia Gayle; Frumin, Melissa; Maier, Stephan Ernst; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2003)
      Background: Evidence suggests that a disruption in limbic system network integrity and, in particular, the cingulate gyrus (CG), may play a role in the pathophysiology of schizophrenia; however, the cingulum bundle (CB), ...

    • Comparison of Single-Shot Echo-Planar and Line Scan Protocols for Diffusion Tensor Imaging 

      Kubicki, Marek R.; Maier, Stephan Ernst; Westin, Carl-Fredrik; Mamata, Hatsuho; Ersner-Hershfield, Hal; Estepar, Raul; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier, 2004)
      Rationale and Objectives: Both single-shot diffusion-weighted echo-planar imaging (EPI) and line scan diffusion imaging (LSDI) can be used to obtain magnetic resonance diffusion tensor data and to calculate directionally ...

    • Diffusion Tensor Imaging and Its Application to Neuropsychiatric Disorders 

      Kubicki, Marek R.; Westin, Carl-Fredrik; Maier, Stephan Ernst; Mamata, Hatsuho; Frumin, Melissa; Ersner-Hershfield, Hal; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Ovid Technologies (Wolters Kluwer Health), 2002)
      Magnetic resonance diffusion tensor imaging (DTI) is a new technique that can be used to visualize and measure the diffusion of water in brain tissue; it is particularly useful for evaluating white matter abnormalities. ...

    • DTI and MTR abnormalities in schizophrenia: Analysis of white matter integrity 

      Kubicki, Marek R.; Park, H.; Westin, Carl-Fredrik; Nestor, Paul Gerard; Mulkern, Robert Vincent; Maier, Stephan Ernst; Niznikiewicz, Margaret A.; Connor, E.E.; Levitt, James Jonathan; Frumin, Melissa; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2005)
      Diffusion tensor imaging (DTI) studies in schizophrenia demonstrate lower anisotropic diffusion within white matter due either to loss of coherence of white matter fiber tracts, to changes in the number and/or density of ...

    • Fornix Integrity and Hippocampal Volume in Male Schizophrenic Patients 

      Kuroki, Noriomi; Kubicki, Marek R.; Nestor, Paul Gerard; Salisbury, Dean F.; Park, Hae-Jeong; Levitt, James Jonathan; Woolston, Sophie; Frumin, Melissa; Niznikiewicz, Margaret A.; Westin, Carl-Fredrik; Maier, Stephan Ernst; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2006)
      Background: The hippocampus has been shown to be abnormal in schizophrenia. The fornix is one of the main fiber tracts connecting the hippocampus with other brain regions. Few studies have evaluated the fornix in schizophrenia, ...

    • Fronto–Temporal Disconnectivity in Schizotypal Personality Disorder: A Diffusion Tensor Imaging Study 

      Nakamura, Motoaki; McCarley, Robert William; Kubicki, Marek R.; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Seidman, Larry Joel; Maier, Stephan Ernst; Westin, Carl-Fredrik; Kikinis, Ron; Shenton, Martha Elizabeth (Elsevier BV, 2005)
      Background: Using diffusion tensor imaging (DTI), we previously reported abnormalities in two critical white matter tracts in schizophrenia, the uncinate fasciculus (UF) and the cingulum bundle (CB), both related to ...

    • High-Resolution Line Scan Diffusion Tensor MR Imaging of White Matter Fiber Tract Anatomy 

      Mamata, Hatsuho; Mamata, Yoshiaki; Westin, Carl-Fredrik; Shenton, Martha Elizabeth; Kikinis, Ron; Jolesz, Ferenc A.; Maier, Stephan Ernst (2002)
      Background and Purpose: MR diffusion tensor imaging permits detailed visualization of white matter fiber tracts. This technique, unlike T2-weighted imaging, also provides information about fiber direction. We present ...

    • A review of diffusion tensor imaging studies in schizophrenia 

      Kubicki, Marek R.; McCarley, Robert William; Westin, Carl-Fredrik; PARK, H; Maier, Stephan Ernst; Kikinis, Ron; Jolesz, Ferenc A.; Shenton, Martha Elizabeth (Elsevier BV, 2007)
      Both post-mortem and neuroimaging studies have contributed significantly to what we know about the brain and schizophrenia. MRI studies of volumetric reduction in several brain regions in schizophrenia have confirmed early ...

    • Spatial normalization of diffusion tensor MRI using multiple channels 

      Park, Hae-Jeong; Kubicki, Marek R.; Shenton, Martha Elizabeth; Guimond, Alexandre; McCarley, Robert William; Maier, Stephan Ernst; Kikinis, Ron; Jolesz, Ferenc A.; Westin, Carl-Fredrik (Elsevier BV, 2003)
      Diffusion Tensor MRI (DT-MRI) can provide important in vivo information for the detection of brain abnormalities in diseases characterized by compromised neural connectivity. To quantify diffusion tensor abnormalities based ...

    • The uncinate fasciculus and extraversion in schizotypal personality disorder: A diffusion tensor imaging study 

      Gurrera, Ronald Joseph; NAKAMURA, M; Kubicki, Marek R.; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Seidman, Larry Joel; Westin, Carl-Fredrik; Maier, Stephan Ernst; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2007)

    • Uncinate Fasciculus Findings in Schizophrenia: A Magnetic Resonance Diffusion Tensor Imaging Study 

      Kubicki, Marek R.; Westin, Carl-Fredrik; Maier, Stephan Ernst; Frumin, Melissa; Nestor, Paul Gerard; Salisbury, Dean F.; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (American Psychiatric Publishing, 2002)
      Objective: Disruptions in connectivity between the frontal and temporal lobes may explain some of the symptoms observed in schizophrenia. Conventional magnetic resonance imaging (MRI) studies, however, have not shown ...

    • White matter hemisphere asymmetries in healthy subjects and in schizophrenia: a diffusion tensor MRI study 

      Park, Hae-Jeong; Westin, Carl-Fredrik; Kubicki, Marek R.; Maier, Stephan Ernst; Niznikiewicz, Margaret A.; Baer, Aaron H; Frumin, Melissa; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2004)
      Hemisphere asymmetry was explored in normal healthy subjects and in patients with schizophrenia using a novel voxel-based tensor analysis applied to fractional anisotropy (FA) of the diffusion tensor. Our voxel-based ...