Zobrazeno 1 - 10
of 28
pro vyhledávání: '"A. J. de Crespigny"'
Autor:
Jeremy D. Schmahmann, Wen-Yih Isaac Tseng, Thomas Benner, Deepak N. Pandya, Patric Hagmann, A. J. de Crespigny, Helen D'Arceuil, Ruopeng Wang, Van J. Wedeen, Guangping Dai
Publikováno v:
NeuroImage. 41:1267-1277
MRI tractography is the mapping of neural fiber pathways based on diffusion MRI of tissue diffusion anisotropy. Tractography based on diffusion tensor imaging (DTI) cannot directly image multiple fiber orientations within a single voxel. To address t
Autor:
Jeremy D. Schmahmann, Deepak N. Pandya, Van J. Wedeen, Alex J de Crespigny, Ruopeng Wang, Guangping Dai, Helen E D'Arceuil
Publikováno v:
Brain. 130:630-653
Understanding the long association pathways that convey cortical connections is a critical step in exploring the anatomic substrates of cognition in health and disease. Diffusion tensor imaging (DTI) is able to demonstrate fibre tracts non-invasively
A comparative evaluation of CH3-DTPA-Gd (NMS60) for contrast-enhanced magnetic resonance angiography
Autor:
A. J. de Crespigny, Akira Nakatani, Roland Bammer, Michael E. Moseley, Yuji Hashiguchi, Diane Howard, Shigemi Seri
Publikováno v:
Magnetic Resonance Imaging. 22:619-624
In a canine model the signal dynamics of a new oligomer-based MR contrast agent (NMS60, 2158 Da) were compared to Gd-DTPA to investigate the agents' potential for magnetic resonance angiography (MRA). Twelve male mongrel dogs were imaged sequentially
Autor:
A. J. de Crespigny, Michael Forsting, Michael E. Moseley, Tobias Engelhorn, Christian Beaulieu, Arnd Doerfler
Publikováno v:
Neuroscience Letters. 344:127-131
This study examined the hemodynamic effects of craniectomy compared to reperfusion on the temporal evolution of cerebral perfusion in different brain regions in a rat model of focal cerebral ischemia. Three groups were investigated: no treatment, rep
Publikováno v:
Magnetic Resonance in Medicine. 43:876-883
This work presents a novel approach for quantifying low concentrations of H(2)(17)O in vivo and explores its utility for assessing cerebral ischemia. Oxygen-17 enriched water acts as a T(2) shortening contrast agent whose effect can be suppressed by
Publikováno v:
ResearcherID
Background and Purpose —The increasing interest in diffusion-weighted MRI (MRI) for diagnosis and monitoring of acute stroke in humans calls for a sound understanding of the underlying mechanisms of this image contrast in acute cerebral ischemia. T
Publikováno v:
Magnetic Resonance in Medicine. 35:763-770
This work describes a diffusion-weighted (DW) interleaved echo-planar imaging (IEPI) method for use on either conventional whole-body scanners or scanners equipped with high-speed gradient and receiver hardware. In combination with cardiac gating and
Publikováno v:
Magnetic Resonance in Medicine. 27:391-397
Gradient-recalled echo-planar (T2*-weighted) imaging was used to noninvasively monitor regional blood oxygenation state changes in real time during transient episodes of focal ischemia in cat brain. Varying ischemic intervals (12 s to 30 min) were ca
Autor:
Julian He, Helen D'Arceuil, A. J. de Crespigny, Ramon G. Gonzalez, Michael Duggan, M. Phil, Johnny C. Pryor, J. Liu
We used fluoroscopic guidance and over-the-wire techniques to superselectively place a microcatheter into a branch of the MCA of three macaques and MRI bolus tracking techniques to measure perfusion within the selected brain region. Such techniques a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a177f70fa236ef1f8fa0d4da9479f6a
https://europepmc.org/articles/PMC3345490/
https://europepmc.org/articles/PMC3345490/
Autor:
S. Seri, A. J. de Crespigny, Akira Nakatani, Helen D'Arceuil, Yuji Hashiguchi, Michael E. Moseley, Diane Howard, Lorie R. Pelc
Publikováno v:
The international journal of cardiovascular imaging. 21(5)
Purpose: Our objective was to evaluate the use of a new medium weight MRI contrast agent, NMS60 (a␣synthetic oligomeric Gd-complex containing three Gd3+ atoms, molecular weight 2158 Da) compared to gadolinium-diethylene triamine pentaacetic acid (G