Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Randall B. Stafford"'
Autor:
Aaron R. Switzer, Cheryl McCreary, Saima Batool, Randall B. Stafford, Richard Frayne, Bradley G. Goodyear, Eric E. Smith
Publikováno v:
NeuroImage: Clinical, Vol 11, Iss C, Pp 461-467 (2016)
Lower blood oxygenation level dependent (BOLD) signal changes in response to a visual stimulus in functional magnetic resonance imaging (fMRI) have been observed in cross-sectional studies of cerebral amyloid angiopathy (CAA), and are presumed to ref
Externí odkaz:
https://doaj.org/article/53eac7b536804183a05152605cf39ad9
Autor:
Avery J.L. Berman, Randall B. Stafford, Alexadru Hanganu, M. Ethan MacDonald, Rebecca J. Williams, Nils D. Forkert, Richard Frayne, Hongfu Sun, G. Bruce Pike, Deepthi Rajashekar, Cheryl R. McCreary
Publikováno v:
Neurobiology of Aging. 95:131-142
Cerebral cortex thinning and cerebral blood flow (CBF) reduction are typically observed during normal healthy aging. However, imaging-based age prediction models have primarily used morphological features of the brain. Complementary physiological CBF
Autor:
Aaron R. Switzer, Randall B. Stafford, Cheryl R. McCreary, Ikreet Cheema, Angela Zwiers, Ramnik Sekhon, Richard Frayne, Charlotte Zerna, Ana Alvarez-Veronesi, Anna Charlton, Eric E. Smith, Bradley G. Goodyear
Publikováno v:
Neurology. 95(10)
ObjectiveTo assess cerebrovascular reactivity in response to a visual task in participants with cerebral amyloid angiopathy (CAA), Alzheimer disease (AD), and mild cognitive impairment (MCI) using fMRI.MethodsThis prospective cohort study included 40
Autor:
Tiejun Zhao, Randall B. Stafford, John A. Detre, Jongho Lee, Zang-Hee Cho, Young-Bo Kim, Myung Kyun Woo, Se-Hong Oh, Sudipto Dolui
Publikováno v:
International Journal of Imaging Systems and Technology. 26:106-115
7 T arterial spin labeling (ASL) faces major challenges including the increased specific absorption rate (SAR) and increased B0 and B1 inhomogeneity. This work describes the design and implementation of a dual-coil system that allows for continuous A
Autor:
Mark A. Elliott, John A. Detre, Danny J.J. Wang, Ben Inglis, R. Nick Bryan, Sudipto Dolui, Lenore J. Launer, Randall B. Stafford, Bryon A. Mueller, David R. Jacobs, Mack Finkel, Raghav R. Mattay, Ze Wang, Lisa Desiderio
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 36:1244-1256
Arterial spin labeling and phase contrast magnetic resonance imaging provide independent non-invasive methods for measuring cerebral blood flow. We compared global cerebral blood flow measurements obtained using pseudo-continuous arterial spin labeli
Autor:
HyunWook Park, Randall B. Stafford, Donghyun Kim, Sung Suk Oh, Dongyeob Han, Jongho Lee, Yoonho Nam, Jinyoung Hwang, Se-Hong Oh
Publikováno v:
Magnetic Resonance in Medicine. 72:452-458
Purpose To introduce novel acquisition and postprocessing approaches for susceptibility weighted imaging (SWI) to remove background field inhomogeneity artifacts in both magnitude and phase data. Methods The proposed method acquires three echoes in a
Autor:
Randall B, Stafford, Myung-Kyun, Woo, Se-Hong, Oh, Sudipto, Dolui, Tiejun, Zhao, Young-Bo, Kim, John A, Detre, Zang-Hee, Cho, Jongho, Lee
Publikováno v:
International journal of imaging systems and technology. 26(2)
7 T arterial spin labeling (ASL) faces major challenges including the increased specific absorption rate (SAR) and increased B0 and B1 inhomogeneity. This work describes the design and implementation of a dual-coil system that allows for continuous A
Autor:
Feliks, Kogan, Randall B, Stafford, Erin K, Englund, Garry E, Gold, Hari, Hariharan, John A, Detre, Ravinder, Reddy
Publikováno v:
NMR in biomedicine. 30(1)
Creatine, a key component of muscle energy metabolism, exhibits a chemical exchange saturation transfer effect (CEST) between its amine group and bulk water which has been exploited to spatially and temporally map creatine changes in skeletal muscle
Publikováno v:
Journal of Alzheimer's Disease. 32:677-687
There is growing recognition of an interaction between cerebrovascular disease and Alzheimer's disease, but the mechanisms of this interaction remain poorly understood. While macroscopic stroke can clearly produce cognitive deficits and accelerate Al
Publikováno v:
Magnetic Resonance in Medicine. 59:430-433
Balanced steady-state free precession (bSSFP) is capable of producing ample fat-water separation. In the case of the bSSFP Dixon method, the phase between fat and water can be manipulated by setting repetition time (TR) to an odd-half-multiple of the