Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Samantha J Ma"'
Publikováno v:
PLoS ONE, Vol 8, Iss 1, p e51704 (2013)
BackgroundFollowing fear conditioning (FC), ex vivo evidence suggests that early dynamics of cellular and molecular plasticity in amygdala and hippocampal circuits mediate responses to fear. Such altered dynamics in fear circuits are thought to be et
Externí odkaz:
https://doaj.org/article/5a10223bfde144dabc5f68a319f1291c
Autor:
Mona Sharifi Sarabi, Samantha J. Ma, Kay Jann, John M. Ringman, Danny J.J. Wang, Yonggang Shi
Publikováno v:
NeuroImage, Vol 286, Iss , Pp 120504- (2024)
Small cerebral blood vessels are largely inaccessible to existing clinical in vivo imaging technologies. This study aims to present a novel analysis pipeline for vessel density mapping of small cerebral blood vessels from high-resolution 3D black-blo
Externí odkaz:
https://doaj.org/article/aa2a31387e824141a9a55efb9815cc2e
Autor:
Chenyang Zhao, Xingfeng Shao, Qinyang Shou, Samantha J. Ma, Sayim Gokyar, Christina Graf, Rudolf Stollberger, Danny JJ Wang
Fulfilling potentials of ultrahigh field for pseudo-Continuous Arterial Spin Labeling (pCASL) has been hampered by B1/B0 inhomogeneities that affect pCASL labeling, background suppression (BS), and the readout sequence. This study aimed to present a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b22974d7a2df6f6d2277c5d0bdbc02f
https://doi.org/10.1101/2023.04.24.23289051
https://doi.org/10.1101/2023.04.24.23289051
Publikováno v:
Magnetic Resonance Imaging Clinics of North America. 29:53-65
Ultrahigh field offers increased resolution and contrast for neurovascular imaging. Arterial spin labeling methods benefit from an increased intrinsic signal-to-noise ratio of MR imaging signal and a prolonged tracer half-life at ultrahigh field, all
Autor:
Dafna Ben Bashat, Jonathan J. Russin, Oren Geri, Arun P. Amar, Danny J.J. Wang, Lirong Yan, Soroush Heidari Pahlavian, Samantha J. Ma
Publikováno v:
Magnetic Resonance in Medicine. 85:2735-2746
Purpose Characterizing vessel territories can provide crucial information for evaluation of cerebrovascular disorders. In this study, we present a novel postprocessing pipeline for vascular territorial imaging of cerebral arteries based on a noncontr
Autor:
Lirong Yan, Xingfeng Shao, Kai Wang, Samantha J. Ma, Chenyang Zhao, Danny J.J. Wang, Qinyang Shou
Publikováno v:
Magnetic resonance in medicine. 87(1)
PURPOSE To optimize pseudo-continuous arterial spin labeling (pCASL) for 7 T, and to further improve the labeling efficiency with parallel RF transmission transmit B1 ( B1+ ) shimming. METHODS pCASL parameters were optimized based on B1+/B0 field dis
Autor:
Arthur W. Toga, Yonggang Shi, Danny J.J. Wang, Lirong Yan, Mona Sharifi Sarabi, Samantha J. Ma, Xingfeng Shao, Kay Jann, Qi Yang, Yue Chen
Publikováno v:
Neuroimage
Objectives The lenticulostriate arteries (LSAs) with small diameters of a few hundred microns take origin directly from the high flow middle cerebral artery (MCA), making them especially susceptible to damage (e.g. by hypertension). This study aims t
Autor:
Samantha J. Ma, Danny J.J. Wang, Lina M. D'Orazio, Xingfeng Shao, John M. Ringman, Marlene Casey
Publikováno v:
Magn Reson Med
Purpose To present a novel MR pulse sequence and modeling algorithm to quantify the water exchange rate (kw ) across the blood-brain barrier (BBB) without contrast, and to evaluate its clinical utility in a cohort of elderly subjects at risk of cereb
Autor:
Brittney L. Blevins, Harry V. Vinters, Seth Love, Donna M. Wilcock, Lea T. Grinberg, Julie A. Schneider, Rajesh N. Kalaria, Yuriko Katsumata, Brian T. Gold, Danny J. J. Wang, Samantha J. Ma, Lincoln M. P. Shade, David W. Fardo, Anika M. S. Hartz, Gregory A. Jicha, Karin B. Nelson, Shino D. Magaki, Frederick A. Schmitt, Merilee A. Teylan, Eseosa T. Ighodaro, Panhavuth Phe, Erin L. Abner, Matthew D. Cykowski, Linda J. Van Eldik, Peter T. Nelson
Publikováno v:
Blevins, B L, Vinters, H V, Love, S, Wilcock, D M, Grinberg, L T, Schneider, J A, Kalaria, R N, Katsumata, Y, Gold, B T, Wang, D J J, Ma, S J, Shade, L M P, Fardo, D W, Hartz, A M S, Jicha, G A, Nelson, K B, Magaki, S D, Schmitt, F A, Teylan, M A, Ighodaro, E T, Phe, P, Abner, E L, Cykowski, M D, Van Eldik, L J & Nelson, P T 2021, ' Brain arteriolosclerosis ', Acta Neuropathologica, vol. 141, no. 1, pp. 1-24 . https://doi.org/10.1007/s00401-020-02235-6
Acta Neuropathol
Acta neuropathologica, vol 141, iss 1
Acta Neuropathol
Acta neuropathologica, vol 141, iss 1
Brain arteriolosclerosis (B-ASC), characterized by pathologic arteriolar wall thickening, is a common finding at autopsy in aged persons and is associated with cognitive impairment. Hypertension and diabetes are widely recognized as risk factors for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6c9a61359bf852bc16d85526345df32
https://research-information.bris.ac.uk/en/publications/1199021b-7f43-4a1e-89e0-a1b3a5b57078
https://research-information.bris.ac.uk/en/publications/1199021b-7f43-4a1e-89e0-a1b3a5b57078
Autor:
Xingfeng Shao, Kay Jann, Samantha J. Ma, Lirong Yan, Axel Montagne, John M. Ringman, Berislav V. Zlokovic, Danny J. J. Wang
Publikováno v:
Frontiers in Neuroscience, Vol 14 (2020)
Frontiers in Neuroscience
Frontiers in Neuroscience
Background: Dynamic contrast-enhanced (DCE) MRI using intravenous injection of gadolinium-based contrast agents (GBCAs) is commonly used for imaging blood-brain barrier (BBB) permeability. Water is an alternative endogenous tracer with limited exchan