Browsing HMS Scholarly Articles by Keyword "magnetic resonance imaging"

Now showing items 21-40 of 46

    • Functional Connectivity Substrates for tDCS Response in Minimally Conscious State Patients 

      Cavaliere, Carlo; Aiello, Marco; Di Perri, Carol; Amico, Enrico; Martial, Charlotte; Thibaut, Aurore; Laureys, Steven; Soddu, Andrea (Frontiers Media S.A., 2016)
      Transcranial direct current stimulation (tDCS) is a non-invasive technique recently employed in disorders of consciousness, and determining a transitory recovery of signs of consciousness in almost half of minimally conscious ...

    • Inhaled Nitric Oxide Improves Outcomes After Successful Cardiopulmonary Resuscitation in Mice 

      Minamishima, Shizuka; Kida, Kotaro; Tokuda, Kentaro; Wang, Huifang; Sips, Patrick; Kosugi, Shizuko; Mandeville, Joseph B.; Buys, Emmanuel; Brouckaert, Peter; Liu, Philip K.; Liu, Christina; Bloch, Kenneth Daniel; Ichinose, Fumito (Ovid Technologies (Wolters Kluwer Health), 2011)
      Background—Sudden cardiac arrest (CA) is a leading cause of death worldwide. Breathing nitric oxide (NO) reduces ischemia/reperfusion injury in animal models and in patients. The objective of this study was to learn whether ...

    • Local white matter geometry from diffusion tensor gradients 

      Savadjiev, Peter; Kindlmann, Gordon L.; Bouix, Sylvain; Shenton, Martha Elizabeth; Westin, Carl-Fredrik (Elsevier BV, 2010)
      We introduce a mathematical framework for computing geometrical properties of white matter fibres directly from diffusion tensor fields. The key idea is to isolate the portion of the gradient of the tensor field corresponding ...

    • Magnetic Resonance Imaging of the Elbow: A Structured Approach 

      Sampath, Srinath C.; Sampath, Srihari C.; Bredella, Miriam A. (SAGE Publications, 2013)
      Context: The elbow is a complex joint and commonly injured in athletes. Evaluation of the elbow by magnetic resonance imaging (MRI) is an important adjunct to the physical examination. To facilitate accurate diagnosis, a ...

    • Magnetic resonance imaging study of hippocampal volume in chronic, combat-related posttraumatic stress disorder 

      Gurvits, Tamara V.; Shenton, Martha Elizabeth; Hokama, Hiroto; Ohta, Hirokazu; Lasko, Natasha B.; Gilbertson, Mark; Orr, Scott P.; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Pitman, roger Keith (Elsevier BV, 1996)
      This study used quantitative volumetric magnetic resonance imaging techniques to explore the neuroanatomic correlates of chronic, combat-related posttraumatic stress disorder (PTSD) in seven Vietnam veterans with PTSD ...

    • Migraine Aura: Retracting Particle-Like Waves in Weakly Susceptible Cortex 

      Dahlem, Markus A.; Hadjikhani, Nouchine (Public Library of Science, 2009)
      Cortical spreading depression (SD) has been suggested to underlie migraine aura. Despite a precise match in speed, the spatio-temporal patterns of SD observed in animal cortex and aura symptoms mapped to the cortical surface ...

    • MRI anatomy of schizophrenia 

      McCarley, Robert William; Wible, Cynthia Gayle; Frumin, Melissa; Hirayasu, Yoshio; Levitt, James Jonathan; Fischer, Iris A.; Shenton, Martha Elizabeth (Elsevier BV, 1999)
      Structural magnetic resonance imaging (MRI) data have provided much evidence in support of our current view that schizophrenia is a brain disorder with altered brain structure, and consequently involving more than a simple ...

    • An MRI study of temporal lobe abnormalities and negative symptoms in chronic schizophrenia 

      Anderson, Jane E; Wible, Cynthia Gayle; McCarley, Robert William; Jakab, M; Kasai, Kazue; Shenton, Martha Elizabeth (Elsevier BV, 2002)
      Previous magnetic resonance imaging (MRI) studies have reported various subtle brain abnormalities in schizophrenic patients, including temporal lobe abnormalities, which are of particular interest given the role of this ...

    • Mucinous tubular and spindle cell carcinoma of the kidney: imaging features 

      Sahni, Vibhu Vinodchandra; Hirsch, Michelle S.; Sadow, Cheryl Ann; Silverman, Stuart George (E-MED LTD, 2012)
      This article describes the features on sonography, computed tomography (CT) and magnetic resonance imaging (MRI) of mucinous tubular and spindle cell carcinoma of the kidney. Six pathologically proven cases of mucinous ...

    • Negative Associations between Corpus Callosum Midsagittal Area and IQ in a Representative Sample of Healthy Children and Adolescents 

      Ganjavi, Hooman; Lewis, John D.; Bellec, Pierre; MacDonald, Penny A.; Waber, Deborah Paula; Evans, Alan C.; Karama, Sherif (Public Library of Science, 2011)
      Documented associations between corpus callosum size and cognitive ability have heretofore been inconsistent potentially owing to differences in sample characteristics, differing methodologies in measuring CC size, or the ...

    • Neonatal Brain Tissue Classification with Morphological Adaptation and Unified Segmentation 

      Beare, Richard J.; Chen, Jian; Kelly, Claire E.; Alexopoulos, Dimitrios; Smyser, Christopher D.; Rogers, Cynthia E.; Loh, Wai Y.; Matthews, Lillian G.; Cheong, Jeanie L. Y.; Spittle, Alicia J.; Anderson, Peter J.; Doyle, Lex W.; Inder, Terrie E.; Seal, Marc L.; Thompson, Deanne K. (Frontiers Media S.A., 2016)
      Measuring the distribution of brain tissue types (tissue classification) in neonates is necessary for studying typical and atypical brain development, such as that associated with preterm birth, and may provide biomarkers ...

    • Neuronal Dysfunction and Disconnection of Cortical Hubs in Non-Demented Subjects with Elevated Amyloid Burden 

      Drzezga, Alexander; Sreenivasan, Aishwarya; Talukdar, Tanveer; Sullivan, Caroline; Sepulcre, Jorge; Putcha, Deepti; Becker, John Alex; van Dijk, Koene R A; Greve, Douglas N.; Johnson, Keith Alan; Sperling, Reisa Anne; Schultz, Aaron (Oxford University Press, 2011)
      Disruption of functional connectivity between brain regions may represent an early functional consequence of b-amyloid pathology prior to clinical Alzheimer’s disease. We aimed to investigate if non-demented older individuals ...

    • Neuropsychological Status and Structural Brain Imaging in Adolescents With Single Ventricle Who Underwent the Fontan Procedure 

      Bellinger, David C.; Watson, Christopher G.; Rivkin, Michael J.; Robertson, Richard L.; Roberts, Amy E.; Stopp, Christian; Dunbar‐Masterson, Carolyn; Bernson, Dana; DeMaso, David R.; Wypij, David; Newburger, Jane W. (John Wiley and Sons Inc., 2015)
      Background: Few studies have described the neuropsychological outcomes and frequency of structural brain or genetic abnormalities in adolescents with single ventricle who underwent the Fontan procedure. Methods and Results: ...

    • A new statistical method for testing hypotheses of neuropsychological/MRI relationships in schizophrenia: partial least squares analysis 

      Nestor, Paul Gerard; O, Brian F.; McCarley, Robert William; Niznikiewicz, Margaret A.; Barnard, John; Jen Shen, Zi; Bookstein, Fred L.; Shenton, Martha Elizabeth (Elsevier BV, 2002)
      We applied partial least squares (PLS) as a novel multivariate statistical technique to examine neuropsychological correlates of magnetic resonance imaging (MRI) measures of brain volumes in a well studied sample of 15 ...

    • Pediatric neuroimaging in early childhood and infancy: challenges and practical guidelines 

      Raschle, Nora; Zuk, Jennifer Margaret; Ortiz-Mantilla, Silvia; Sliva, Danielle D.; Franceschi, Angela; Grant, P. Ellen; Benasich, April A.; Gaab, Nadine (Wiley-Blackwell, 2012)
      Structural and functional magnetic resonance imaging (fMRI) has been used increasingly to investigate typical and atypical brain development. However, in contrast to studies in school-aged children and adults, MRI research ...

    • Physical principles for scalable neural recording 

      Marblestone, Adam H.; Zamft, Bradley M.; Maguire, Yael G.; Shapiro, Mikhail G.; Cybulski, Thaddeus R.; Glaser, Joshua I.; Amodei, Dario; Stranges, P. Benjamin; Kalhor, Reza; Dalrymple, David A.; Seo, Dongjin; Alon, Elad; Maharbiz, Michel M.; Carmena, Jose M.; Rabaey, Jan M.; Boyden, Edward S.; Church, George M.; Kording, Konrad P. (Frontiers Media S.A., 2013)
      Simultaneously measuring the activities of all neurons in a mammalian brain at millisecond resolution is a challenge beyond the limits of existing techniques in neuroscience. Entirely new approaches may be required, ...

    • Prefrontal cortical thickness in first-episode psychosis: a magnetic resonance imaging study 

      Wiegand, Laura C; Warfield, Simon Keith; Levitt, James Jonathan; Hirayasu, Yoshio; Salisbury, Dean F; Heckers, Stephan; Dickey, Chandlee C.; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2004)
      Background: Findings from postmortem studies suggest reduced prefrontal cortical thickness in schizophrenia; however, cortical thickness in first-episode schizophrenia has not been evaluated using magnetic resonance imaging ...

    • Proton Magnetic Resonance Spectroscopy Reveals Neuroprotection by Oral Minocycline in a Nonhuman Primate Model of Accelerated NeuroAIDS 

      Bombardier, Jeffrey P.; Annamalai, Lakshmanan; Burdo, Tricia H.; Fell, Robert; Hakimelahi, Reza; He, Julian; Autissier, Patrick; Masliah, Eliezer; Williams, Kenneth C.; González, R. Gilberto; Ratai, Eva-Maria; Joo, Chan-Gyu; Campbell, Jennifer; Lentz, Margaret R.; Halpern, Elkan F.; Westmoreland, Susan V. (Public Library of Science, 2010)
      Background: Despite the advent of highly active anti-retroviral therapy (HAART), HIV-associated neurocognitive disorders continue to be a significant problem. In efforts to understand and alleviate neurocognitive deficits ...

    • A quantitative MR measure of the fornix in schizophrenia 

      Zahajszky, Janos; Dickey, Chandlee C.; McCarley, Robert William; Fischer, Iris A.; Nestor, Paul Gerard; Kikinis, Ron; Shenton, Martha Elizabeth (Elsevier BV, 2001)
      Some cognitive disturbances accompanying schizophrenia may be due to abnormalities in the thalamus and components of the limbic system. The fornix is an important white-matter relay pathway connecting these structures and ...

    • A review of MRI findings in schizophrenia 

      Shenton, Martha Elizabeth; Dickey, Chandlee C.; Frumin, Melissa; McCarley, Robert William (Elsevier BV, 2001)
      After more than 100 years of research, the neuropathology of schizophrenia remains unknown and this is despite the fact that both Kraepelin (1919/1971: Kraepelin,E., 1919/1971. Dementia praecox. Churchill Livingston Inc., ...