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Bridging Gaps in the Neuroimaging Puzzle: New Ways to Image Brain Anatomy and Function in Health and Disease Using Electroencephalography and 7 Tesla Magnetic Resonance Imaging

Fine-scale Mapping of Brain Anatomy and Function With Combined Electroencephalography and 7T Magnetic Resonance Imaging: a Single-center Study on Healthy Participants and on Tremor, Psychosis and Epilepsy Patients

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05769933
Enrollment
156
Registered
2023-03-15
Start date
2022-09-21
Completion date
2024-08-31
Last updated
2023-03-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epilepsy, Essential Tremor, Healthy, Psychosis

Keywords

electroencephalography, magnetic resonance imaging, ultra-high field, neuroimaging

Brief summary

The human brain presents outstanding challenges to science and medicine. Brain function and structure span broad spatial scales (from single neurons to brain-wide networks) as well as temporal scales (from milliseconds to years). Currently, none of the tools available for studying the brain can fully capture its structure and function across these diverse scales - the neuroimaging puzzle. This poses crucial limitations to understanding how the brain works, and how it is affected by numerous diseases. The central goal of this project is to expand currently available tools for non-invasive human brain imaging, to bridge critical gaps in the neuroimaging puzzle. New methodologies will be developed, focused on ultra-high field magnetic resonance imaging (UHF MRI) and its combination with electroencephalography (EEG). New contrast mechanisms and technological advances enabled by UHF MRI and EEG will be explored to allow unprecedented views into the microstructure of brain regions like the thalamus, and to capture the activity of large-scale neuronal networks in the brain with high sensitivity, temporal and spatial specificity. These advances will be directly applied to address open questions in the diagnosis and treatment of essential tremor, and psychosis. In general, improved brain imaging techniques are critical for a deeper understanding of how the brain works, and to detect and characterize diseases more effectively, thereby improving clinical management and leading to a healthier population. The non-invasive characterization and treatment of neurodegenerative diseases like tremor is particularly relevant to aging modern societies.

Interventions

DEVICESimultaneous EEG-fMRI at 7 Tesla

Scalp electroencephalography (EEG) and functional magnetic resonance imaging (MRI) at 7 Tesla. These will be completely non-invasive techniques with no ionizing radiation and no injected contrasts.

DEVICEStructural MRI at 7 Tesla

Structural magnetic resonance imaging (MRI) at 7 Tesla. These will be completely non-invasive techniques with no ionizing radiation and no injected contrasts.

Sponsors

Institute for Diagnostic and Interventional Neuroradiology, Inselspital
CollaboratorUNKNOWN
CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Common to all participant groups: be 18 years old or older; be able to understand instructions; be able to provide informed consent. * Specific to healthy participants: have no history of neurological or mental disorders; normal vision or corrected-to-normal using contact lenses. * Specific to the patient groups: not be hospitalized; having been diagnosed with tremor, epilepsy or psychosis and invited to participate by our team's clinicians; for some groups: normal vision or corrected-to-normal using contact lenses.

Exclusion criteria

* Contra-indications for MRI (e.g. an implant that is not MRI-compatible), also including having claustrophobia or being pregnant. * Inability to follow the necessary tasks of the study (e.g. unable to lie on the scanner bed). * Having undergone brain surgeries in the past.

Design outcomes

Primary

MeasureTime frame
Contrast-to-noise ratio between thalamic nuclei in 7T structural MRIDay 1
Pearson correlation between thalamocortical brain regions in 7T functional MRIDay 1
Microstate duration in EEG acquired concurrently with 7T functional MRIDay 1

Secondary

MeasureTime frame
Neuroimaging datasets published in fully anonymized form in suitable public data repositoriesDay 1

Countries

Switzerland

Contacts

Primary ContactJoão Jorge, PhD
info@csem.ch+41 32 720 51 11

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026