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Intravascular susceptibility contrast mechanisms in tissues
The factors affecting the rate of loss of transverse magnetization in gradient echo and spin‐echo pulse sequences have been quantified using computer modeling for media containing arrays ofExpand
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Diffusion tensor imaging detects clinically important axonal damage after mild traumatic brain injury: a pilot study.
The goal of the current investigation was to detect clinically important axonal damage in cerebral white matter after mild traumatic brain injury (TBI) using diffusion tensor imaging (DTI). To thisExpand
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Magnetic resonance image reconstruction from undersampled measurements using a patch-based nonlocal operator
We design a patch-based nonlocal operator (PANO) to sparsify magnetic resonance images by making use of the similarity of image patches. Expand
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Persistence of HIV-associated cognitive impairment, inflammation, and neuronal injury in era of highly active antiretroviral treatment
Objective:To determine whether cognitive impairment and brain injury as measured by proton magnetic resonance spectroscopy (MRS) persist in the setting of HAART. Design:This study is an observationalExpand
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Consequences of Repeated Blood-Brain Barrier Disruption in Football Players
The acknowledgement of risks for traumatic brain injury in American football players has prompted studies for sideline concussion diagnosis and testing for neurological deficits. While concussionsExpand
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Persistent, Long-term Cerebral White Matter Changes after Sports-Related Repetitive Head Impacts
Introduction Repetitive head impacts (RHI) sustained in contact sports are thought to be necessary for the long-term development of chronic traumatic encephalopathy (CTE). Our objectives were to: 1)Expand
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Subject-specific changes in brain white matter on diffusion tensor imaging after sports-related concussion.
BACKGROUND AND PURPOSE Current approaches to diffusion tensor imaging (DTI) analysis do not permit identification of individual-level changes in DTI indices. We investigated the ability of wildExpand
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The Relation Between Posttraumatic Stress Disorder and Mild Traumatic Brain Injury Acquired During Operations Enduring Freedom and Iraqi Freedom
Objective:To understand the relations of mild traumatic brain injury (TBI), blast exposure, and brain white matter structure to severity of posttraumatic stress disorder (PTSD). Design:Nested cohortExpand
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Effects of nadir CD4 count and duration of human immunodeficiency virus infection on brain volumes in the highly active antiretroviral therapy era
Cerebral atrophy is a well-described, but poorly understood complication of human immunodeficiency virus (HIV) infection. Despite reduced prevalence of HIV-associated dementia in the highly activeExpand
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Effects of susceptibility variations on NMR measurements of diffusion
Abstract A pulsed-gradient spin-echo method has been used to measure the water self-diffusion coefficient in various media containing susceptibility variations arising from the presence ofExpand
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