Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Hesamoddin Jahanian"'
Publikováno v:
Frontiers in Neuroscience, Vol 18 (2024)
IntroductionFunctional magnetic resonance imaging (fMRI) has become a fundamental tool for studying brain function. However, the presence of serial correlations in fMRI data complicates data analysis, violates the statistical assumptions of analyses
Externí odkaz:
https://doaj.org/article/04e630f9694d48a685209b105b632ccd
Autor:
Hesamoddin Jahanian, Wendy W Ni, Thomas Christen, Michael E Moseley, Manjula Kurella Tamura, Greg Zaharchuk
Publikováno v:
PLoS ONE, Vol 9, Iss 3, p e92539 (2014)
Spontaneous fluctuations in blood oxygenation level-dependent (BOLD) images are the basis of resting-state fMRI and frequently used for functional connectivity studies. However, there may be intrinsic information in the amplitudes of these fluctuatio
Externí odkaz:
https://doaj.org/article/a5f035f26f784c1bade5a7934109198e
Autor:
Susana Martinez-Conde, William K. S. Ojemann, Olivya Caballero, Stephen L. Macknik, Devon J. Griggs, Azadeh Yazdan-Shahmorad, Hesamoddin Jahanian, Zachary Ip
Publikováno v:
J Vis Exp
In this paper, we outline a method for surgical preparation that allows for the practical planning of a variety of neurosurgeries in NHPs solely using data extracted from magnetic resonance imaging (MRI). This protocol allows for the generation of 3D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a24e6454f8ba744451327b7ac1478c4
https://doi.org/10.3791/61098
https://doi.org/10.3791/61098
Publikováno v:
Brain Connectivity. 8:362-370
In resting-state functional MRI (rs-fMRI), functional networks are assessed utilizing the temporal correlation between spontaneous blood oxygen level-dependent signal fluctuations of spatially remote brain regions. Recently, several groups have shown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f103d06db8beee187e24a9b6af7d8457
https://doi.org/10.1089/brain.2018.0610
https://doi.org/10.1089/brain.2018.0610
Publikováno v:
Brain Connectivity. 7:13-24
Recently, emerging studies have demonstrated the existence of brain resting-state spontaneous activity at frequencies higher than the conventional 0.1 Hz. A few groups utilizing accelerated acquisitions have reported persisting signals beyond 1 Hz, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bde535eeb49d2e1331e55d081e9b1e1c
https://doi.org/10.1089/brain.2016.0441
https://doi.org/10.1089/brain.2016.0441
Autor:
Michael E. Moseley, Nicholas M. Pajewski, Manjula Kurella Tamura, Greg Zaharchuk, Clinton B. Wright, Thomas Christen, Hesamoddin Jahanian
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 37:2526-2538
Measurement of the ability of blood vessels to dilate and constrict, known as vascular reactivity, is often performed with breath-holding tasks that transiently raise arterial blood carbon dioxide (PaCO2) levels. However, following the proper command
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3dbc0d50c7bed0e51192cfb9485f62e
https://doi.org/10.1177/0271678x16670921
https://doi.org/10.1177/0271678x16670921
Autor:
Peter N. Van Buren, Addison A. Taylor, Clive Rosendorff, Srinivasan Beddhu, Daniel E. Weiner, Hesamoddin Jahanian, Matthew Diamond, R. Nick Bryan, Manjula Kurella Tamura, Nicholas M. Pajewski, Greg Zaharchuk
Publikováno v:
Neurology. 86:1208-1216
To determine the relation between markers of kidney disease-estimated glomerular filtration rate (eGFR) and urine albumin to creatinine ratio (UACR)-with cerebral blood flow (CBF) and white matter volume (WMV) in hypertensive adults.We used baseline
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c43b07015ec57a818761abf8f372b1b0
https://doi.org/10.1212/wnl.0000000000002527
https://doi.org/10.1212/wnl.0000000000002527
Autor:
Hesamoddin Jahanian, Matthew J. Middione, Robert F. Dougherty, Adam B. Kerr, Thomas Christen, Hua Wu, Samantha J. Holdsworth, Greg Zaharchuk, Kangrong Zhu, Michael E. Moseley
Publikováno v:
Journal of neuroscience methods. 311
Background Recent advancements in simultaneous multi-slice (SMS) imaging techniques have enabled whole-brain resting-state fMRI (rs-fMRI) scanning at sub-second temporal resolution, providing spectral ranges much wider than the typically used range o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e966616fcdb63fadfb17e5849f1c8544
https://pubmed.ncbi.nlm.nih.gov/30300699
https://pubmed.ncbi.nlm.nih.gov/30300699
Publikováno v:
Magnetic Resonance in Medicine. 73:1053-1064
Purpose Neurovascular regulation, including responses to neural activation that give rise to the blood oxygenation level–dependent (BOLD) effect, occurs mainly at the arterial and arteriolar level. The purpose of this study is to develop a framewor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a728a0ce1a0841555982c3b55bf73e4c
https://doi.org/10.1002/mrm.25220
https://doi.org/10.1002/mrm.25220
Autor:
Michael E. Moseley, Deqiang Qiu, Wendy W. Ni, Hesamoddin Jahanian, Greg Zaharchuk, Thomas Christen
Publikováno v:
Journal of Magnetic Resonance Imaging. 41:424-430
Purpose To investigate if delays in resting-state spontaneous fluctuations of the BOLD (sfBOLD) signal can be used to create maps similar to time-to-maximum of the residue function (Tmax) in Moyamoya patients and to determine whether sfBOLD delays af
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71ca7dcaa1d99f11e88b070915c499b5
https://doi.org/10.1002/jmri.24558
https://doi.org/10.1002/jmri.24558