Scientific events
Dernière mise à jour :
To find out about upcoming RRI IMPACT events, click on the button.
Crédits photos - wavebreakmedia sur Freepik
IMPACT Events
One-off events organized or co-organized by IMPACT (IMPACT funding and IMPACT members involved in the organizing committee)
IMPACT Kick-off - May 2022, CGFB
For a review of the IMPACT Kick-off click here.
Neuroscience Alliance : from anatomy to cognitive impairment - May 2023
Evénement lauréat de l'AAP colloque IMPACT 2022-2023
Organisé par Michel Thiebaut de Schotten (IMN), à Broca, campus Carreire
Imaging Workshop 2.0 - July 2023
Evénement lauréat de l'AAP colloque IMPACT 2022-2023
La deuxième édition d'Imaging Workshop s'est tenue à Bordeaux du 5 au 7 juillet 2023 à l'IHU Liryc.
Dans le cadre de cette manifestation a été également organisée le 7 juillet une course "fun run" à la forêt de bourgailh.
- Aurélien Bustin : aurelien.bustin@ihu-liryc.fr
- Victor de Villedon : victor.de-villedon@ihu-liryc.fr
Tract-Anat Retreat - March 2024
IMPACT Events Sponsoring 2024
The Tract-Anat retreat (March 11th to 15th, 2024, France) is the first in a series of international conferences designed to unite the entire community involved in the development of tractography algorithms to study brain anatomy and its related research applications to medicine. To this end, we are bringing together 55 world-leading experts (including 10+ clinicians) from the fields of tractography, neuroanatomy, neurobiology, neurosurgery, network science, and related disciplines. The retreat will facilitate innovative discussions and presentations that will shape the future of tractography.
Contact : Laurent Petit (GIN-IMN)
Journée de Neuroimagerie chez l'Humain 2024 (JNH 2024) - April 2024
Comité scientifique :
- Sandra Chanraud (INCIA)
- Gael Jobard (IMN)
- Hervé Lemaître (IMN)
- Emmanuel Mellet (IMN)
- Sylvain Miraux (RMSB)
- Thomas Tourdias (Neurocentre Magendie)
- Laure Zago (IMN)
IMPACT Mid-term Scientific Day - June 2024
For a review of the IMPACT Mid-term Scientific Day, click here
MIDL 2024 Congress (Medical Imaging with Deep Learning) - July 2024
The MIDL conference aims to be a forum for deep learning researchers, clinicians and health-care companies to take a leap in the application of deep learning based automatic image analysis in disease screening, diagnosis, prognosis, treatment selection and treatment monitoring. The conference will have a broad scope and include topics such as computer-aided screening and diagnosis, detection, segmentation, (multi-modal) registration, image reconstruction and synthesis. Furthermore, we discuss issues such as the need for large curated and annotated datasets, noisy reference standards, and the high-dimensionality of medical data. Software demonstrations, presentation of medical data sets and innovative clinical applications are also covered as focus points for integration of deep learning algorithms in clinical practice.
MIDL currently offers a three-day program with keynote presentations from invited speakers, oral presentations, posters, and live demonstrations of deep learning algorithms from academia and industry.
More information: https://2024.midl.io
Contact : Pierrick Coupé - Pierrick.Coupe@u-bordeaux.fr
IMPACT Thematic Conferences were set up every two months at the Institute of Bio-imaging (IBIO) with presentation from IMPACT members.
Conference - Up-to-date approaches to analyze and quantify inhomogeneous magnetization transfer (ihMT)
Speaker: Fanny Munsch
Date: 27/04/2023
Venue: IBIO
Synopsis:
Methods for analysis and quantification of ihMT data with a focus on brain studies will be described.
Cette présentation sera présentée au congrès de l'ISMRM (juin 2023) lors de la session Member Initiated Symposium intitulée:"Physical mechanisms, Methods, and Applications of Inhomogeneous Magnetization Transfer (ihMT)".
Contacts:
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
Conference - Imagerie thermique par IRM : applications en radiologie interventionnelle et perspectives en physiopathologie
Speaker: Valery Ozenne (CRMS, IHU Liryc, Bordeaux)
Date: 29/06/2023
Venue: IBIO
Contacts:
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
Conference - Imaging brain glucose metabolism
Speaker: Christian Limberger, Université fédérale Rio Grande del Sol de Porto Alegre, Brésil
Invited by Anne-Karine Bouzier-Sore
Date : jeudi 28 septembre / 14h00
Venue: IBIO, salle de conférence (RDC)
Conference - What can functional neuroimaging tell us about the birth of symbolic behavior in humans?
Speaker: Emmanuel Mellet, directeur de recherche CNRS (IMN, GIN)
Date : jeudi 30 Novembre / 11h00
Venue: IBIO, salle de conférence (RDC)
Conference - Ecological approach in neuroimagery: Coupling MRI with Ecological Momentary Assesment in everyday life
Speaker: Valentine Chirokoff (INCIA)
Date: 25/01/2024
Venue: IBIO, salle de conférence
Title:
« Ecological approach in neuroimagery: Coupling MRI with Ecological Momentary Assesment in everyday life »
Contacts:
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
Conférences - François Rheault (MIni, université de Sherbrooke) et Joël Lefebvre (LINUM, UQAM)
- François Rheault, Directeur du Medical Imaging and Neuroinformatic (MINi) Lab à l'Université de Sherbrooke nous présentera sa conférence : "All you need to know about tractometry or the art of brain spaghetti analysis"
- Joël Lefebvre, Directeur du Digital Imaging, Neurophotonics and Microscopy Laboratory (LINUM) à l'Université du Québec à Montréal (UQAM), nous fera une présentation intitulée : "Introduction to neurophotonics and Optical Coherence Tomography serial histology for myelin imaging"
Contact
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
Conférence - Super resolution ultrasound imaging from lab bench to bedside
Speaker: Georges Chabouh (LIB, Sorbonne Université)
Date: 30/05/2024
Venue: IBIO, salle de conférence
Title:
« Super resolution ultrasound imaging from lab bench to bedside »
Abstract:
Ultrasound is a widely used medical imaging technique sensitive to blood flow. However, it is limited by the classic trade-off between penetration and resolution. Super-resolved ultrasound, particularly Ultrasound Localization Microscopy (ULM), is a technique that can provide very high resolution deep within tissues. It relies on clinical contrast agents - microbubbles - that are isolated and localized on a micrometer scale in ultrasound images. Tracking their trajectory can provide blood velocities in the microcirculation. Recently, such a technique has been demonstrated in both the brain (Errico et al. Nature 2015) and in the kidney, tumors, peripheral vessels, and lymph nodes (as reviewed in Couture et al. IEEE UFFC 2018 or Christensen-Jeffries et al. UMB 2020).
In this presentation, we will describe recent advances in ULM. We will focus on the use of ULM for neurovascular diseases such as stroke. Additionally, we will describe the use of sULM (sensing-ULM) to reveal the fine functional structures of the kidney, glomeruli, in both animals and humans. All these developments aim to create a new imaging tool for stroke patients and to improve
the diagnosis of kidney diseases. In the future, ULM could potentially enable deep and portable micro-angiography, potentially reducing patient treatment times.
Contacts:
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
Conférence - Neural imaging of Parkinson's disease; a worldwide consortium approach
Le 2 juillet 2024 au Bâtiment Biologie Santé, le Réseau Recherche Impulsion IMPACT a invité le Pr. Ysbrand van der Werf pour une conférence intitulée "Neural imaging of Parkinson's disease; a worldwide consortium approach".
Abstract :
- Gwenaëlle Catheline, INCIA, gwenaelle.catheline@u-bordeaux.fr
Conférence - The massive flexibility of human functional hemispheric brain organization
Abstract
According to textbook descriptions of the functional organization of the human brain, the left hemisphere predominantly governs cognitive functions such as speech and manual praxis, while the right hemisphere assumes dominant control over other functions like spatial attention and face recognition. However, this stereotypical ‘hemispheric division of labor’ does not account for every single person. In fact, mounting evidence suggests that deviations from the typical pattern of functional hemispheric segregation are quite common even in ‘neurotypical’ populations. Moreover, neurologically healthy individuals also vary significantly from each other in the relative degree to which the dominant and non-dominant hemispheres are active during the performance of specific lateralized tasks, ranging from an outspoken asymmetry to a (nearly) symmetrical activation pattern. Examining this variability is a core interest of our lab and hence individual differences in hemispheric organization will be the topic of my talk. We have been investigating this topic by targeting samples with special cases of asymmetrical organization, such as individuals with a complete reversal of the visceral organs (situs inversus totalis), left-handers with right hemispheric language dominance and individuals with near-symmetrical brain activity during language production. During this talk I will give a brief overview of these studies and demonstrate the enormous flexibility of the asymmetrical organization of the human brain.
Contacts:
- Hervé Lemaître (herve.lemaitre@u-bordeaux.fr)
- Fanny Munsch (fanny.munsch@u-bordeaux.fr)
STS Department Science Day
Participation and presentation of IMPACT to STS Department's scientific day
3e STS Department Scientific Day – 24 November 2022, IECB
4e STS Department Scientific Day - 23 novembre 2023, IECB
The day was an opportunity for young members of the RRI IMPACT to present the progress of their research through presentations (Elise Cosenza), flash communication (Amel Imene Hadj Bouzid) and posters (Fanny Dabrin, prize for the best poster).
For a review of the day, click here!
Conferences organized by program members and linked to IMPACT
Conference - Lesion Network Symptoms Mapping and patient reeducation
Conference - Functional UltraSound (FUS) Imaging
Conference - Quantitative MRI and its application to visual neuroscience
Conference - Visual field maps and white matter tracts in the human visual system
Seminar – Structural and functional neuroanatomy of Autism Spectrum in women
Speaker : Hélène Vulser, Maître de Conférence – Praticien Hospitalier (MCU-PH)
Responsable du Centre du Neurodéveloppement Adulte Service de Psychiatrie Adulte, Hôpital Pitié-Salpêtrière, Paris
Invited by Hervé Lemaître (GIN – IMN)
Date : vendredi 9 juin / 14:00
Venue: Centre Broca
Abstract:
The gender unbalance in Autism Spectrum Disorder (ASD) – 4:1, males to females – has led studies to focus mainly on males leaving one part of the population mostly unstudied. Explanations for such an imbalance have suggested a potential male bias resulting in females being historically under-recognized, or alternatively, that females harbor a protective effect making them less likely to develop autism. For example, female could engage in “compensation” showing fewer or less severe symptoms. In this case, studying autistic traits at a subclinical level could unreveal part of the behavioral aspect of ASD, particularly in women. Autistic traits have been defined as restricted activities/stereotypical behaviors and deficits in interaction and social communication as in ASD but at a subclinical level. The degree of these autistic traits is also referred to as the broader autism phenotype that can also be distributed along a continuum in the general population.
The neuroimaging field has also been affected by this gender unbalance and only few studies has tackled the question of brain correlates of ASD in women and even less in the framework of broad autism phenotype. However, structural and functional neuroanatomy studies in women with ASD are needed to uncover part of the heterogeneity due to gender within the neurobiology of ASD. Moreover, exploring autistic traits in women could help to understand how subclinical level of ASD interact with these brain correlates and if they might be used to predict clinical outcome or to adapt intervention in another framework than a clear cut between ASD and neurotypical individuals.
Seminar - Disconnectome, do we need it?
Speaker: Chris Foulon
Invited by Michel Thiebaut de Schotten
Venue: IBIO, espace k
Date: Decembre 7th, 2023, 11am
Introduction: The Disconnectome is the estimation of white matter disconnections after a brain injury. By analyzing the Disconnectome, we can better understand the effects of lesions on behaviour and recovery, compared to solely observing the lesion's location. Furthermore, the Disconnectome helps us improve our understanding of human cognitive functions.
Seminar - BraDiPho: Integrating diffusion tractography with photogrammetric dissection of the human brain
Speaker: Laura Vavassori
Invited by Michel Thiabaut de Schotten
Venue: IBIO, Espace k
Date: Decembre 7th, 11am
Introduction: The investigation of white matter anatomy remains somewhat divided between studies favouring ex-vivo microdissection and those prioritizing in-vivo tractography. We have developed BraDiPho (Brain Dissection Photogrammetry), an innovative an online/offline framework that currently integrates for the first time both ex-vivo microdissection and in-vivo dMRI-based tractography data of the human brain.
Journées nationales France Life Imaging (FLI)
- Contact : refli2023@u-bordeaux.fr
Séminaire TAD - "Structurer et propulser l'approche multivers pour l'analyse de données IRM faisant usage des techniques d'apprentissage automatique”
Date : 18 janvier 2024, 13h
Lieu : salle 76 LaBRI
Jeremy Lefort-Besnard, postdoc à Inria Rennes, présentera ses travaux "Structurer et propulser l'approche multivers pour l'analyse de données IRM faisant usage des techniques d'apprentissage automatique”.
*Résumé* : Face à la crise de reproductibilité, la communauté de la neuroimagerie a réagi en instaurant diverses mesures, telles que le partage du code et la conteneurisation des environnements logiciels. Cependant, il est crucial de noter que ces mesures ne garantissent pas nécessairement la robustesse des résultats, c'est-à-dire leur stabilité face aux variations des procédures expérimentales. Pour améliorer cette robustesse, une approche pertinente consiste à prendre en considération de manière appropriée les sources essentielles de variations. L'idée de suivre simultanément de nombreux chemins analytiques dans le même ensemble de données, afin de donner du sens à un multivers de choix possibles, se présente comme une solution prometteuse pour atteindre cet objectif. Dans le cadre de mon projet de recherche, je propose une structuration du multivers spécifiquement dédiée à l'analyse de données IRM faisant usage des techniques d'apprentissage automatique. Ce projet vise à standardiser une méthodologie permettant un éclairage exhaustif de la variabilité des résultats engendrée par les choix analytiques, contribuant ainsi à renforcer la confiance et la fiabilité des résultats obtenus.
Séminaire Numérique et Santé - Kilian Hett
Date : 25 janvier, 11h
Lieu : Amphithéâtre du LaBRI
Kilian Hett, Clinical Scientist, Department of Neurology at Vanderbilt University Medical Center, nous présentera sa conférence :
"Novel non-invasive markers of the cerebrospinal fluid circuits: assessment of glymphatic clearance mechanisms"
Introduction: The cerebrospinal fluid (CSF) is mainly produced from the choroid plexus, located in the atrium of the lateral ventricles, passing through the 3rd ventricle and through the cerebral aqueduct to join the 4th ventricle before flowing to the more spread subarachnoid space. New hypotheses suggest that CSF is resorbed near the superior sinus, the so-called parasagittal dural space. The CSF circuit has an important function in nutrient delivery but also in brain waste clearance as it has a crucial role to play in the glial-lymphatic (glymphatic) system. Developing non-invasive methods to characterize this circuit is therefore essential to explore new hypotheses pertaining to impaired waste clearance and neurodegenerative diseases with proteinopathies, such as Alzheimer’s and Parkinson’s disease. This offers novel perspectives for understanding neurophysiological processes that could impact clinical applications. Consequently, our research group has developed new methods to quantify structures implicated in the CSF circuits, spanning from production to egress. We investigated changes throughout the human lifespan and applied these methods to test hypotheses in cohort of patients with neurodegeneration.
Seminar - Subjective cognitive decline, white matter hyper intensities and neurodegeneration
Subjective cognitive decline, white matter hyper intensities and neurodegeneration
Abstract
Alzheimer's disease (AD) pathology may be present in the brain as many as 10-15 years before symptoms occur. As in most diseases, early treatment, before too much brain damage has been done, is likely to be more effective. However, accurately identifying people at risk of dementia due to AD early, before symptoms appear, is extremely difficult. We have studied people with subjective cognitive decline - they have issues with memory or cognition, but not enough to be captured by standard cognitive tests. We will also study people with mild cognitive impairment - their memory issues can be measured with standard tests. Both groups have significantly increased risk of later dementia, making them very interesting to study for early AD. In this talk, I will describe some of the methods we have developed to segment the hippocampus and to identify white matter hyper intensities and then use this data to study subjective cognitive decline and mild cognitive impairment.