Search Results - "Balédent, Olivier"

Use of real-time phase-contrast MRI to quantify the effect of spontaneous breathing on the cerebral arteries by Liu, Pan, Fall, Sidy, Balédent, Olivier

“…•EPI-PC can quantify cerebral arterial blood flow in real-time but is sensitive to noise.•Our new analytical method can quantify the effect of breathing on…”
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Eye Tracking Post Processing to Detect Visual Artifacts and Quantify Visual Attention under Cognitive Task Activity during fMRI by Leharanger, Maxime, Liu, Pan, Vandromme, Luc, Balédent, Olivier

“…Determining visual attention during cognitive tasks using activation MRI remains challenging. This study aimed to develop a new eye-tracking (ET)…”
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Cerebral arterial flow dynamics during systole and diastole phases in young and older healthy adults by Owashi, Kimi Piedad, Capel, Cyrille, Balédent, Olivier

“…Abstract Background Since arterial flow is the leading actor in neuro-fluids flow dynamics, it might be interesting to assess whether it is meaningful to study…”
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Familiarization with Mixed Reality for Individuals with Autism Spectrum Disorder: An Eye Tracking Study by Leharanger, Maxime, Rodriguez Martinez, Eder Alejandro, Balédent, Olivier, Vandromme, Luc

“…Mixed Reality (MR) technology is experiencing significant growth in the industrial and healthcare sectors. The headset HoloLens 2 displays virtual objects (in…”
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Real-time phase contrast MRI versus conventional phase contrast MRI at different spatial resolutions and velocity encodings by Liu, Pan, Fall, Sidy, Ahiatsi, Maureen, Balédent, Olivier

“…To compare the accuracy of real-time phase-contrast echo-planar MRI (EPI-PC) and conventional cine phase-contrast MRI (Conv-PC) and to assess the influence of…”
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Extracranial versus intracranial hydro-hemodynamics during aging: a PC-MRI pilot cross-sectional study by Lokossou, Armelle, Metanbou, Serge, Gondry-Jouet, Catherine, Balédent, Olivier

“…Both aging and changes in blood flow velocity between the extracranial (intraspinal) and intracranial regions of cerebral vessels have an impact on brain…”
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Concomitant Analysis of Arterial, Venous, and CSF Flows using Phase-Contrast MRI: A Quantitative Comparison Between MS Patients and Healthy Controls by ElSankari, Souraya, Balédent, Olivier, van Pesch, Vincent, Sindic, Christian, de Broqueville, Quentin, Duprez, Thierry

“…Venous dysfunction has recently been hypothesized to contribute to the pathophysiology of multiple sclerosis (MS). 2D phase-contrast (PC) magnetic resonance…”
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A coupled hydrodynamic model of the cardiovascular and cerebrospinal fluid system by Martin, Bryn A, Reymond, Philippe, Novy, Jan, Balédent, Olivier, Stergiopulos, Nikolaos

“…Coupling of the cardiovascular and cerebrospinal fluid (CSF) system is considered to be important to understand the pathophysiology of cerebrovascular and…”
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Hydrodynamic and Hemodynamic Interactions in Chronic Hydrocephalus by Capel, Cyrille, Owashi, Kimi, Peltier, Johann, Balédent, Olivier

“…Background: During a cardiac cycle, intracranial pressure is related to arterial entry into the cranium and its interaction with intracranial compliance. The…”
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Impact of Shunt Placement on CSF Dynamics by Capel, Cyrille, Owashi, Kimi, Metanbou, Serge, Peltier, Johann, Balédent, Olivier

“…CSF dynamics are disturbed in chronic hydrocephalus (NPH). We hypothesise that these alterations reflect a disturbance of intracranial compliance. The aim of…”
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Phase-contrast MRI analysis of cerebral blood and CSF flow dynamic interactions by Owashi, Kimi Piedad, Liu, Pan, Metanbou, Serge, Capel, Cyrille, Balédent, Olivier

“…Following the Monro-Kellie doctrine, the Cerebral Blood Volume Changes (CB_VC) should be mirrored by the Cerebrospinal Fluid Volume Changes (CSF_VC) at the…”
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Quantification of blood flow in the superior ophthalmic vein using phase contrast magnetic resonance imaging by Promelle, Veronique, Bouzerar, Roger, Milazzo, Solange, Balédent, Olivier

“…Phase contrast magnetic resonance imaging (PC MRI), a validated, non-invasive technique for measuring intracranial blood and cerebrospinal flows, has been…”
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Hemodynamic and Hydrodynamic Pathophysiology in Chiari Type 1 Malformations: Towards Understanding the Genesis of Syrinx by Capel, Cyrille, Lantonkpode, Romaric, Metanbou, Serge, Peltier, Johann, Balédent, Olivier

“…Background: The pathophysiology of this association of type 1 Chiari malformation (CM1) and syrinxes is still unknown. There is an alteration in the dynamics…”
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Ophthalmic Artery and Superior Ophthalmic Vein Blood Flow Dynamics in Glaucoma Investigated by Phase Contrast Magnetic Resonance Imaging by Promelle, Veronique, Bouzerar, Roger, Daouk, Joel, Iscar, Claire, Milazzo, Solange, Balédent, Olivier

“…PRECIS:Ophthalmic artery and superior ophthalmic vein blood flow were quantified by Phase contrast MRI and seemed lower in glaucoma. Venous flow dynamics was…”
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Early assessment of lateralization and sex influences on the microstructure of the white matter corticospinal tract in healthy term neonates by Saadani‐Makki, Fadoua, Hagmann, Cornelia, Balédent, Olivier, Makki, Malek I.

“…We assessed the sex and the lateralization differences in the corticospinal tract (CST) during the early postnatal period. Twenty‐five healthy term neonates…”
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Influence of principal component analysis acceleration factor on velocity measurement in 2D and 4D PC-MRI by Pagé, Gwenaël, Bettoni, Jérémie, Salsac, Anne-Virginie, Balédent, Olivier

“…Objective The objective of the study was to determine how to optimize 2D and 4D phase-contrast magnetic resonance imaging (PC-MRI) acquisitions to acquire flow…”
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Brain pulsations enlightened by Balédent, Olivier, Czosnyka, Marek, Czosnyka, Zofia H.

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Arterial hypertension impact on cerebral blood flow in patients with Alzheimer’s disease by Zmudka, Jadwiga Attier, Bouzerar, Roger, Gondry, Catherine, Couvillers, Frederique, Chaarani, Bader, Balédent, Olivier

“…BACKGROUND: Studies show the potential deterioration of brain vascularization and probable involvement of hypertension in Alzheimer disease (AD). OBJECTIVE:…”
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Insights on the Hydrodynamics of Chiari Malformation by Capel, Cyrille, Padovani, Pauline, Launois, Pierre-Henri, Metanbou, Serge, Balédent, Olivier, Peltier, Johann

“…Background: We propose that the appearance of a ptosis of the cerebellar tonsils and syringomyelia is linked to its own hemohydrodynamic mechanisms. We aimed…”
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Measurement of choroid plexus perfusion using dynamic susceptibility MR imaging: capillary permeability and age-related changes by Bouzerar, Roger, Chaarani, Bader, Gondry-Jouet, Catherine, Zmudka, Jadwiga, Balédent, Olivier

“…Introduction The cerebrospinal fluid (CSF) plays a major role in the physiology of the central nervous system. The continuous turnover of CSF is mainly…”
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