Search Results - "Mekkaoui, Choukri"
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High-gradient diffusion MRI reveals distinct estimates of axon diameter index within different white matter tracts in the in vivo human brain
Published in Brain Structure and Function (01-05-2020)“…Axon diameter and density are important microstructural metrics that offer valuable insight into the structural organization of white matter throughout the…”
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Connectome 2.0: Developing the next-generation ultra-high gradient strength human MRI scanner for bridging studies of the micro-, meso- and macro-connectome
Published in NeuroImage (Orlando, Fla.) (01-11-2021)“…The first phase of the Human Connectome Project pioneered advances in MRI technology for mapping the macroscopic structural connections of the living human…”
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Dual-phase cardiac diffusion tensor imaging with strain correction
Published in PloS one (05-09-2014)“…In this work we present a dual-phase diffusion tensor imaging (DTI) technique that incorporates a correction scheme for the cardiac material strain, based on…”
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Association of orthostatic hypertension with mortality in the Systolic Hypertension in the Elderly Program
Published in Journal of human hypertension (01-10-2019)“…We examined the association of orthostatic hypertension with all-cause mortality in the active treatment and placebo randomized groups of the Systolic…”
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A 48-channel receive array coil for mesoscopic diffusion-weighted MRI of ex vivo human brain on the 3 T connectome scanner
Published in NeuroImage (Orlando, Fla.) (01-09-2021)“…In vivo diffusion-weighted magnetic resonance imaging is limited in signal-to-noise-ratio (SNR) and acquisition time, which constrains spatial resolution to…”
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Myocardial Scar Delineation Using Diffusion Tensor Magnetic Resonance Tractography
Published in Journal of the American Heart Association (06-02-2018)“…Background Late gadolinium enhancement (LGE) is the current standard for myocardial scar delineation. In this study, we introduce the tractographic propagation…”
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Diffusion MRI tractography of the developing human fetal heart
Published in PloS one (26-08-2013)“…Human myocardium has a complex and anisotropic 3D fiber pattern. It remains unknown, however, when in fetal life this anisotropic pattern develops and whether…”
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Fiber architecture in remodeled myocardium revealed with a quantitative diffusion CMR tractography framework and histological validation
Published in Journal of cardiovascular magnetic resonance (12-10-2012)“…The study of myofiber reorganization in the remote zone after myocardial infarction has been performed in 2D. Microstructural reorganization in remodeled…”
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Diffusion Tensor Imaging in Patients with Glioblastoma Multiforme Using the Supertoroidal Model
Published in PloS one (13-01-2016)“…Diffusion Tensor Imaging (DTI) is a powerful imaging technique that has led to improvements in the diagnosis and prognosis of cerebral lesions and…”
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Fluorescence tomography of rapamycin-induced autophagy and cardioprotection in vivo
Published in Circulation. Cardiovascular imaging (01-05-2013)“…Autophagy is a biological process during which cells digest organelles in their cytoplasm and recycle the constituents. The impact of autophagy in the heart,…”
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A comprehensive diffusion MRI dataset acquired on the MGH Connectome scanner in a biomimetic brain phantom
Published in Data in brief (01-06-2018)“…We provide a comprehensive diffusion MRI dataset acquired with a novel biomimetic phantom mimicking human white matter. The fiber substrates in the diffusion…”
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Hemodynamics and wall mechanics of a compliance matching stent: in vitro and in vivo analysis
Published in Journal of vascular and interventional radiology (01-01-2002)“…Evidence is emerging that the abrupt compliance mismatch that exists at the junction between the stent ends and the host arterial wall disturbs both the…”
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Diffusion MRI tractography of the human heart In Vivo at end-diastole and end-systole
Published in Journal of cardiovascular magnetic resonance (01-02-2012)“…From: 15th Annual SCMR Scientific Sessions Orlando, FL, USA 2-5 February 2012 Author details1-Harvard Medical School-MGH-Athinoula A. Martinos Center for…”
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Improving the accuracy of multi breath-hold diffusion tensor MRI tractography of the heart using dynamic motioncorrection
Published in Journal of cardiovascular magnetic resonance (30-01-2013)“…Doc number: O81…”
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Myocardial infarct delineation in vivo using diffusion tensor MRI and the tractographic propagation angle
Published in Journal of cardiovascular magnetic resonance (01-01-2013)“…Doc number: P2…”
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Effects of Adenosine and a Selective A2A Adenosine Receptor Agonist on Hemodynamic and Thallium-201 and Technetium-99m–SestaMIBI Biodistribution and Kinetics
Published in JACC. Cardiovascular imaging (01-10-2009)“…Objectives The purpose of this study was to compare a selective A2A adenosine receptor agonist (regadenoson) with adenosine in clinically relevant canine…”
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Diffusion tensor MRI of the human heart In Vivo with a navigator based free breathing approach
Published in Journal of cardiovascular magnetic resonance (01-02-2012)Get full text
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1081 Toroid-based characterization of myocardial structure using diffusion tensor magnetic resonance imaging
Published in Journal of cardiovascular magnetic resonance (01-10-2008)Get full text
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