Publications by Bénédicte Marie Maréchal

The complementary role of automated brain volumetry to stratify ADNI participants within the ATN framework

Bénédicte Marie Maréchal, Alessandra Griffa, Ricardo Alberto Corredor Jerez, Ilaria Ricchi

The amyloid, tau, neurodegeneration (ATN) framework provides a biological staging model of Alzheimer's disease (AD) using magnetic resonance imaging (MRI), cerebrospinal fluid (CSF), or positron emission tomography (PET) biomarkers. MRI, being non-invasive ...

SAGE Publications2025

Individually optimized dynamic parallel transmit pulses for 3D high‐resolution SPACE imaging at 7T

Bénédicte Marie Maréchal, Tom Hilbert, Jocelyn Philippe, Thomas Yu

Purpose: Although clinical 7T MRI offers various advantages compared to lower field strengths, achieving spatially uniform flip angle distributions remains a challenge. Sampling Perfection with Application optimized Contrast using different flip angle Evol ...

Wiley2025

Amnestic Syndrome in Memory Clinics: Similar Morphological Brain Patterns in Older Adults with and without Alzheimer’s Disease (P4-3.006)

Bénédicte Marie Maréchal, Alessandra Griffa

Ovid Technologies (Wolters Kluwer Health)2025

The hindbrain and cortico-reticular pathway in adolescent idiopathic scoliosis

Bénédicte Marie Maréchal

AIM: To characterise the corticoreticular pathway (CRP) in a case -control cohort of adolescent idiopathic scoliosis (AIS) patients using high -resolution slice -accelerated readoutsegmented echo -planar diffusion tensor imaging (DTI) to enhance the discri ...

W B Saunders Co Ltd2024

Amnestic Syndrome in Memory Clinics: Similar Morphological Brain Patterns in Older Adults with and without Alzheimer's Disease

Bénédicte Marie Maréchal, Alessandra Griffa

Background: Amnestic syndrome of the hippocampal type (ASHT) in Memory Clinics is a presentation common to Alzheimer's disease (AD). However, ASHT can be found in other neurodegenerative disorders. Objective: To compare brain morphometry including hippocam ...

IOS PRESS2024

Normative volumes and relaxation times at 3T during brain development

Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert, Ricardo Alberto Corredor Jerez

While research has unveiled and quantified brain markers of abnormal neurodevelopment, clinicians still work with qualitative metrics for MRI brain investigation. The purpose of the current article is to bridge the knowledge gap between case-control cohort ...

Nature Portfolio2024

Fast refacing of MR images with a generative neural network lowers re-identification risk and preserves volumetric consistency

Jean-Philippe Thiran, Bénédicte Marie Maréchal, Tobias Kober

With the rise of open data, identifiability of individuals based on 3D renderings obtained from routine structural magnetic resonance imaging (MRI) scans of the head has become a growing privacy concern. To protect subject privacy, several algorithms have ...

Wiley2024

Deep Learning for Ischemic Penumbra Segmentation from MR Perfusion Maps: Robustness to the Deconvolution Algorithm

Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Determining the penumbra, i.e., the at-risk but salvageable tissue, is crucial in the context of acute ischemic stroke imaging. Deep learning methods performing segmentation from perfusion parameter maps have shown promise in this regard. However, these me ...

Springer Nature (Switzerland)2024

Automated Quantitative Susceptibility and Morphometry MR Study: Feasibility and Interrelation Between Clinical Score, Lesion Load, Deep Grey Matter and Normal-Appearing White Matter in Multiple Sclerosis

Meritxell Bach Cuadra, Bénédicte Marie Maréchal, Tobias Kober, Tom Hilbert

Lesion load (LL), deep gray matter (DGM) and normal-appearing white matter (NAWM) susceptibility and morphometry may help in monitoring brain changes in multiple sclerosis (MS) patients. We aimed at evaluating the feasibility of a fully automated segmentat ...

2024

Perilesional tissue exhibits different T1 gradients depending on multiple sclerosis subtypes

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

Sage Publications Ltd2023

Tract-wise microstructural analysis informs on current and future disability in early multiple sclerosis

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

Objectives Microstructural characterization of patients with multiple sclerosis (MS) has been shown to correlate better with disability compared to conventional radiological biomarkers. Quantitative MRI provides effective means to characterize micro ...

Springer Heidelberg2023

Corpus callosum in children with neurodevelopmental delay: MRI standard qualitative assessment versus automatic quantitative analysis

Bénédicte Marie Maréchal, Tobias Kober

Background The corpus callosum (CC) is a key brain structure. In children with neurodevelopmental delay, we compared standard qualitative radiological assessments with an automatic quantitative tool. Methods We prospectively enrolled 73 child ...

Springer Wien2023

Diagnostic delay of multiple sclerosis: prevalence, determinants and consequences

Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Background: Early diagnosis and treatment of patients with multiple sclerosis (MS) are associated with better outcomes; however, diagnostic delays remain a major problem.Objective: Describe the prevalence, determinants and consequences of delayed diagnoses ...

Sage Publications Ltd2023

Pathology of normal-appearing white matter assessed by T1 and T2 single-voxel z-scores correlates with cognition in multiple sclerosis

Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Sage Publications Ltd2023

Diagnostic delay of multiple sclerosis: frequency, reasons, and consequences

Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Sage Publications Ltd2023

Interrelation between cardiac and brain small-vessel disease: a pilot quantitative PET and MRI study

Bénédicte Marie Maréchal, Ricardo Alberto Corredor Jerez

Background: Small-vessel disease (SVD) plays a crucial role in cardiac and brain ischemia, but little is known about potential interrelation between both. We retrospectively evaluated 370 patients, aiming at assessing the interrelation between cardiac and ...

Springernature2023

A Multicenter Longitudinal MRI Study Assessing LeMan-PV Software Accuracy in the Detection of White Matter Lesions in Multiple Sclerosis Patients

Meritxell Bach Cuadra, Bénédicte Marie Maréchal, Tobias Kober, Cristina Granziera, Po-Jui Lu, Ricardo Alberto Corredor Jerez, Muhamed Barakovic, Lester Melie Garcia

BackgroundDetecting new and enlarged lesions in multiple sclerosis (MS) patients is needed to determine their disease activity. LeMan-PV is a software embedded in the scanner reconstruction system of one vendor, which automatically assesses new and enlarge ...

WILEY2023

Spinal cord microstructural abnormalities on quantitative T1 mapping predict short-term spinal cord atrophy in early multiple sclerosis

Bénédicte Marie Maréchal, Tobias Kober, Veronica Lily Ravano

Sage Publications Ltd2023

High field brain proton magnetic resonance spectroscopy and volumetry in children with chronic, compensated liver disease-A pilot study

Sarah Lachat, Lijing Xin, Bénédicte Marie Maréchal, Cristina Ramona Cudalbu

Background: There is increasing evidence that children or young adults having acquired liver disease in childhood display neurocognitive impairment which may become more apparent as they grow older. The molecular, cellular and morphological underpinnings o ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2023

Brainstem lesions are associated with diffuse spinal cord involvement in early multiple sclerosis

Bénédicte Marie Maréchal, Tobias Kober

Background Early infratentorial and focal spinal cord lesions on magnetic resonance imaging (MRI) are associated with a higher risk of long-term disability in patients with multiple sclerosis (MS). The role of diffuse spinal cord lesions remains less under ...

BMC2022