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  1. No Access

    Article

    Decreased grey matter volume in mTBI patients with post-traumatic headache compared to headache-free mTBI patients and healthy controls: a longitudinal MRI study

    Traumatic brain injury (TBI) occurs in 1.7 million people annually and many patients go on to develop persistent disorders including post-traumatic headache (PTH). PTH is considered chronic if it continues pas...

    Shana A. B. Burrowes, Chandler Sours Rhodes in Brain Imaging and Behavior (2020)

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    Chapter

    Diffusion Kurtosis Imaging

    Diffusion Kurtosis Imaging (DKI) is an advanced imaging technique that expands the utility of diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI). Kurtosis is a measure of skewness of the shape...

    Jiachen Zhuo, Rao P. Gullapalli in Neuroimaging Techniques in Clinical Practice (2020)

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    Article

    Quantification of shoulder muscle intramuscular fatty infiltration on T1-weighted MRI: a viable alternative to the Goutallier classification system

    Quantification of rotator cuff intramuscular fatty infiltration is important for clinical decision-making in patients with rotator cuff tear. The semi-quantitative Goutallier classification system is the most ...

    Derik L. Davis, Thomas Kesler, Mohit N. Gilotra, Ranyah Almardawi in Skeletal Radiology (2019)

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    Article

    Altered segregation between task-positive and task-negative regions in mild traumatic brain injury

    Changes in large-scale brain networks that accompany mild traumatic brain injury (mTBI) were investigated using functional magnetic resonance imaging (fMRI) during the N-back working memory task at two cogniti...

    Chandler Sours, Joshua Kinnison, Srikanth Padmala in Brain Imaging and Behavior (2018)

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    Article

    Adjusting for Confounders in Cross-correlation Analysis: an Application to Resting State Networks

    Resting State Network (RSN) analysis investigates spontaneous brain activity when the brain is not subjected to any external stimuli. The interest in RSN analysis lies primarily in understanding the interactio...

    Deepak Nag Ayyala, Anindya Roy, Junyong Park, Rao P. Gullapalli in Sankhya B (2018)

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    Article

    Cortical multisensory connectivity is present near birth in humans

    How the newborn brain adapts to its new multisensory environment has been a subject of debate. Although an early theory proposed that the brain acquires multisensory features as a result of postnatal experienc...

    Chandler Sours, Prashant Raghavan, W. Alex Foxworthy in Brain Imaging and Behavior (2017)

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    Chapter and Conference Paper

    Estimation of Fiber Orientations Using Neighborhood Information

    Diffusion magnetic resonance imaging (dMRI) has been used to noninvasively reconstruct fiber tracts. Fiber orientation (FO) estimation is a crucial step in the reconstruction, especially in the case of crossin...

    Chuyang Ye, Jiachen Zhuo, Rao P. Gullapalli, Jerry L. Prince in Computational Diffusion MRI (2016)

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    Article

    Hyper-connectivity of the thalamus during early stages following mild traumatic brain injury

    The thalamo-cortical resting state functional connectivity of seven sub-thalamic regions were examined in a prospectively recruited population of 77 acute mild TBI (mTBI) patients within the first 10 days (mea...

    Chandler Sours, Elijah O. George, Jiachen Zhuo, Steven Roys in Brain Imaging and Behavior (2015)

  9. Article

    Erratum to: Associations between interhemispheric functional connectivity and the Automated Neuropsychological Assessment Metrics (ANAM) in civilian mild TBI

    Chandler Sours, Joseph Rosenberg, Robert Kane, Steve Roys in Brain Imaging and Behavior (2015)

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    Article

    Associations between interhemispheric functional connectivity and the Automated Neuropsychological Assessment Metrics (ANAM) in civilian mild TBI

    This study investigates cognitive deficits and alterations in resting state functional connectivity in civilian mild traumatic brain injury (mTBI) participants with high and low symptoms. Forty-one mTBI partic...

    Chandler Sours, Joseph Rosenberg, Robert Kane, Steve Roys in Brain Imaging and Behavior (2015)

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    Chapter and Conference Paper

    Visual Knowledge Discovery for Diffusion Kurtosis Datasets of the Human Brain

    Classification and visualization of structures in the human brain provide vital information to physicians who examine patients suffering from brain diseases and injuries. In particular, this information is use...

    Sujal Bista, Jiachen Zhuo, Rao P. Gullapalli in Visualization and Processing of Higher Ord… (2015)

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    Chapter

    In Vivo MRI and MRS of Cerebrovascular Function Following Traumatic Brain Injury

    Traumatic brain injury (TBI) is a leading cause of death and disability resulting in reduced quality of life for the patients and a significant economic burden to the society. Advances in magnetic resonance im...

    Chandler Sours, Rao P. Gullapalli in Vascular Mechanisms in CNS Trauma (2014)

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    Article

    Three-dimensional Elastic Image Registration Based on Strain Energy Minimization: Application to Prostate Magnetic Resonance Imaging

    The use of magnetic resonance (MR) imaging in conjunction with an endorectal coil is currently the clinical standard for the diagnosis of prostate cancer because of the increased sensitivity and specificity of...

    Bao Zhang, Dwayne D. Arola, Steve Roys, Rao P. Gullapalli in Journal of Digital Imaging (2011)

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    Chapter and Conference Paper

    Prognostic Ability of Diffusion Tensor Imaging Parameters among Severely Injured Traumatic Brain Injury Patients

    Diffuse axonal injury (DAI) represents the most common primary intra-axial form of traumatic brain injury (TBI), comprising approximately half of all such injuries. Patients presenting with DAI follow a highly...

    Joshua F. Betz, Jiachen Zhuo, Anindya Roy in 26th Southern Biomedical Engineering Confe… (2010)

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    Article

    Functional MRI determination of a dose-response relationship to lower extremity neuromuscular electrical stimulation in healthy subjects

    Although empirical evidence supports the use of neuromuscular electrical stimulation (NMES) to treat physical impairments associated with stroke, the mechanisms underlying the efficacy of this modality are poo...

    Gerald V. Smith, Gad Alon, Steven R. Roys, Rao P. Gullapalli in Experimental Brain Research (2003)

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    Article

    Requirements of functional imaging for future radiological systems

    Although functional imaging is relatively new, it is evident that in the future a complete work-up of the brain would include functional imaging as described above. Since the data collected is extremely large ...

    Darren K. Emge, Rao P. Gullapalli, Steven L. Small in Journal of Digital Imaging (1998)