Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Tamer S Ibrahim"'
Autor:
Narayanan Krishnamurthy, Tales Santini, Sossena Wood, Junghwan Kim, Tiejun Zhao, Howard J Aizenstein, Tamer S Ibrahim
Publikováno v:
PLoS ONE, Vol 14, Iss 1, p e0209663 (2019)
A variety of 7 Tesla RF coil systems have been proposed to produce spin excitation (B1+ field) and MR image acquisition. Different groups have attempted to mitigate the challenges at high and ultra-high field MRI by proposing novel hardware and softw
Externí odkaz:
https://doaj.org/article/939080157e3f444fbcfa5d76621b2358
Autor:
Sossena Wood, Narayanan Krishnamurthy, Tales Santini, Shailesh B Raval, Nadim Farhat, John Andy Holmes, Tamer S Ibrahim
Publikováno v:
PLoS ONE, Vol 13, Iss 2, p e0192794 (2018)
[This corrects the article DOI: 10.1371/journal.pone.0183168.].
Externí odkaz:
https://doaj.org/article/f9ac5851baac4d62978ba34bdef8daf4
Autor:
Tales Santini, Yujuan Zhao, Sossena Wood, Narayanan Krishnamurthy, Junghwan Kim, Nadim Farhat, Salem Alkhateeb, Tiago Martins, Minseok Koo, Tiejun Zhao, Howard J Aizenstein, Tamer S Ibrahim
Publikováno v:
PLoS ONE, Vol 13, Iss 11, p e0206127 (2018)
Radio-frequency (RF) field inhomogeneities and higher levels of specific absorption rate (SAR) still present great challenges in ultrahigh-field (UHF) MRI. In this study, an in-depth analysis of the eigenmodes of a 20-channel transmit Tic-Tac-Toe (TT
Externí odkaz:
https://doaj.org/article/80929ef56e7445638e876115f1cd8da8
Autor:
Shailesh B Raval, Cynthia A Britton, Tiejun Zhao, Narayanan Krishnamurthy, Tales Santini, Vijay S Gorantla, Tamer S Ibrahim
Publikováno v:
PLoS ONE, Vol 12, Iss 6, p e0175629 (2017)
ObjectiveThe purpose of this study was to explore the efficacy of Ultra-high field [UHF] 7 Tesla [T] MRI as compared to 3T MRI in non-contrast enhanced [nCE] imaging of structural anatomy in the elbow, forearm, and hand [upper extremity].Materials an
Externí odkaz:
https://doaj.org/article/4abe9649cca04d96ae74e239d2e4810a
Autor:
Sossena Wood, Narayanan Krishnamurthy, Tales Santini, Shailesh B Raval, Nadim Farhat, John Andy Holmes, Tamer S Ibrahim
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0183168 (2017)
The purpose of this study is to design an anthropomorphic heterogeneous head phantom that can be used for MRI and other electromagnetic applications.An eight compartment, physical anthropomorphic head phantom was developed from a 3T MRI dataset of a
Externí odkaz:
https://doaj.org/article/0336c44481584ecabbff697fcd1ba691
Autor:
Swathi Gujral, Judy L. Cameron, Kayla Conaty, Sumer Ziady, Amrita Sahu, John M. Jakicic, Renee J. Rogers, Caterina Rosano, Abbe N. Vallejo, Kirk I. Erickson, Tamer S. Ibrahim, Howards Aizenstein, Charles F. Reynolds, Meryl A. Butters
Publikováno v:
Frontiers in Aging Neuroscience, Vol 16 (2024)
Background/objectiveTo examine the cognitive benefits of 6 months of prescribed intermittent exercise (10-min bouts totaling 150 weekly minutes) in community-dwelling older adults, comparing effects of low-intensity movement (LIM) and moderate-intens
Externí odkaz:
https://doaj.org/article/48d5fcb282c4428491f11a4c141ba448
Publikováno v:
PLoS ONE, Vol 9, Iss 7, p e103945 (2014)
Implantable Brain Computer Interfaces (BCIs) are designed to provide real-time control signals for prosthetic devices, study brain function, and/or restore sensory information lost as a result of injury or disease. Using Radio Frequency (RF) to wirel
Externí odkaz:
https://doaj.org/article/7a598c1f86de479ead5d72a267bf17ae
Publikováno v:
PLoS ONE, Vol 8, Iss 11, p e77759 (2013)
Implantable neural interfaces are designed to provide a high spatial and temporal precision control signal implementing high degree of freedom real-time prosthetic systems. The development of a Radio Frequency (RF) wireless neural interface has the p
Externí odkaz:
https://doaj.org/article/b5882969241b4853af9ad86dd02c9bbe
Autor:
Tiago Martins, Bruno de Almeida, Minjie Wu, Kristine A. Wilckens, Davneet Minhas, James W. Ibinson, Howard J. Aizenstein, Tales Santini, Tamer S. Ibrahim
Publikováno v:
Frontiers in Neuroscience, Vol 18 (2024)
The development of innovative non-invasive neuroimaging methods and biomarkers is critical for studying brain disease. Imaging of cerebrospinal fluid (CSF) pulsatility may inform the brain fluid dynamics involved in clearance of cerebral metabolic wa
Externí odkaz:
https://doaj.org/article/46e3323616334c80923cf5a5b08f9948
Autor:
Stephen F. Smagula, Liang Zhan, Charles F. Reynolds, Tales Santini, Martica H. Hall, Tamer S. Ibrahim, Howard J. Aizenstein, Robert T. Krafty, Sarah T. Stahl, Layla Banihashemi
Publikováno v:
Am J Geriatr Psychiatry
Objective We sought to determine whether the aspects of white matter connectivity implicated in major depression also relate to mild depressive symptoms in family dementia caregivers (dCGs). Methods Forty-one dCGs (average age=69 years, standard devi