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Bénédicte Marie Maréchal

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Publications associées (69)

First evidence on the utility of T-1 mapping of the optic nerve to investigate differences between MS and NMOSD

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Veronica Lily Ravano, Gian Franco Piredda

SAGE PUBLICATIONS LTD2022

Towards better characterization of spinal cord pathology in early stages of multiple sclerosis using T1 mapping

Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Veronica Lily Ravano, Gian Franco Piredda

SAGE PUBLICATIONS LTD2022

Periventricular gradient of T1 tissue alterations in multiple sclerosis

Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Veronica Lily Ravano, Gian Franco Piredda

Objective: Pathology in multiple sclerosis is not homogenously distributed. Recently, it has been shown that structures adjacent to CSF are more severely affected. A gradient of brain tissue involvement was shown with more severe pathology in periventricul ...

ELSEVIER SCI LTD2022

Older patients with multiple sclerosis have greater enlargement of the brain ventricles following COVID-19

Bénédicte Marie Maréchal, Tobias Kober

SAGE PUBLICATIONS LTD2022

Neuroimaging Harmonization Using cGANs: Image Similarity Metrics Poorly Predict Cross-Protocol Volumetric Consistency

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Computer-aided clinical decision support tools for radiology often suffer from poor generalizability in multi-centric frameworks due to data heterogeneity. In particular, magnetic resonance images depend on a large number of acquisition protocol parameters ...

Springer International Publishing Ag2022

Submillimeter T-1 atlas for subject-specific abnormality detection at 7T

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Ricardo Alberto Corredor Jerez, Gian Franco Piredda

Purpose: Studies at 3T have shown that T-1 relaxometry enables characterization of brain tissues at the single-subject level by comparing individual physical properties to a normative atlas. In this work, an atlas of normative T-1 values at 7T is introduce ...

WILEY2022

Leman-PV as a clinical decision-support tool to assess MS activity: a multicentric longitudinal study at 1.5T and 3T MRI

Bénédicte Marie Maréchal, Tobias Kober, Ricardo Alberto Corredor Jerez

SAGE PUBLICATIONS LTD2021

Clinical correlates of white matter lesions in Parkinson's disease using automated multi-modal segmentation measures

Bénédicte Marie Maréchal, Tobias Kober

Background: Age-related white matter lesions (WML) are common, impact neuronal connectivity, and affect motor function and cognition. In addition to pathological nigrostriatal losses, WML are also common co morbidities in Parkinson's disease (PD) that affe ...

ELSEVIER2021

Comparison of 2D simultaneous multi-slice and 3D GRASE readout schemes for pseudo-continuous arterial spin labeling of cerebral perfusion at 3 T

Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert

Objective In this perfusion magnetic resonance imaging study, the performances of different pseudo-continuous arterial spin labeling (PCASL) sequences were compared: two-dimensional (2D) single-shot readout with simultaneous multislice (SMS), 2D single-sho ...

SPRINGER2021

Improving diagnosis accuracy of brain volume abnormalities during childhood with an automated MP2RAGE-based MRI brain segmentation

Bénédicte Marie Maréchal, Tobias Kober

Background and purpose. - It can be challenging to depict brain volume abnormalities in the pediatric population on magnetic resonance imaging (MRI). The aim of the study was to evaluate the inter-radiologist reliability in brain MRI interpretation, includ ...

MASSON EDITEUR2021

Normal volumetric and T1 relaxation time values at 1.5 T in segmented pediatric brain MRI using a MP2RAGE acquisition

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Gian Franco Piredda

Objectives This study introduced a tailored MP2RAGE-based brain acquisition for a comprehensive assessment of the normal maturing brain. Methods Seventy normal patients (35 girls and 35 boys) from 1 to 16 years of age were recruited within a prospective mo ...

SPRINGER2021

Validating atlas-based lesion disconnectomics in multiple sclerosis: A retrospective multi-centric study

Jonas Richiardi, Reto Meuli, Bénédicte Marie Maréchal, Tobias Kober, Mario Joao Fartaria de Oliveira

The translational potential of MR-based connectivity modelling is limited by the need for advanced diffusion imaging, which is not part of clinical protocols for many diseases. In addition, where diffusion data is available, brain connectivity analyses rel ...

2021

Periventricular gradients of T-1 z-scores correlate with disability in early multiple sclerosis

Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert

SAGE PUBLICATIONS LTD2021

Automated assessment of paramagnetic rim lesions in multiple sclerosis patients with 3T and 7T MP2RAGE

Jean-Philippe Thiran, Meritxell Bach Cuadra, Bénédicte Marie Maréchal, Tobias Kober, Cristina Granziera, Francesco La Rosa

Paramagnetic rim lesions (PRL) in multiple sclerosis are chronic inflammatory lesions depicted in susceptibility-based MRI where high PRL lesion burden has been associated with a more aggressive disease course. As their visual detection is subjective and t ...

ISMRM2021

Plasma neurofilament light and phosphorylated tau 181 as biomarkers of Alzheimer's disease pathology and clinical disease progression

Jonas Richiardi, Bénédicte Marie Maréchal, Christopher Clark

BackgroundTo assess the performance of plasma neurofilament light (NfL) and phosphorylated tau 181 (p-tau181) to inform about cerebral Alzheimer's disease (AD) pathology and predict clinical progression in a memory clinic setting.MethodsPlasma NfL and p-ta ...

2021

T-1 relaxometry abnormalities in white matter tracts predict functional systems scores in MS

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert

SAGE PUBLICATIONS LTD2021

Quantitative comparison of subcortical and ventricular volumetry derived from MPRAGE and MP2RAGE images using different brain morphometry software

Bénédicte Marie Maréchal, Tobias Kober

Objective In brain volume assessment with MR imaging, it is of interest to know the effects of the pulse sequence and software used, to determine whether they provide equivalent data. The aim of this study was to compare cross-sectional volumes of subcorti ...

SPRINGER2021

MRI-based brain volumetry and retinal optical coherence tomography as the biomarkers of outcome in acute methanol poisoning

Bénédicte Marie Maréchal, Tobias Kober

Background: Basal ganglia lesions are typical findings on magnetic resonance imaging (MRI) of the brain in survivors of acute methanol poisoning. However, no data are available on the association between the magnitude of damaged brain regions, serum concen ...

ELSEVIER2020

A method for fast automated assessment of the magnetic resonance parkinsonism index

Bénédicte Marie Maréchal

In patients with parkinsonian syndromes, and particularly during the early stages of the clinical disease, differentiating between idiopathic Parkinson's disease and progressive supranuclear palsy is challenging. Imaging plays an important role in early di ...

SPRINGER2020

Differentiating Parkinson's disease motor subtypes using automated volume-based morphometry incorporating white matter and deep gray nuclear lesion load

Bénédicte Marie Maréchal

Background Periventricular leukoaraiosis may be an important pathological change in postural instability gait disorder (PIGD), a motor subtype of Parkinson's disease (PD). Clinical diagnosis of PIGD may be challenging for the general neurologist. Purpose T ...

2020

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