Feasibility of simultaneous EEG-fMRI at 0.55 T: Recording, Denoising, and Functional Mapping
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2026
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866918337900969984 |
|---|---|
| author | Razmara, Parsa Medani, Takfarinas Sisara, Majid Abbasi Joshi, Anand A. Chen, Rui Jeong, Woojae Tian, Ye Nayak, Krishna S. Leahy, Richard M. |
| author_facet | Razmara, Parsa Medani, Takfarinas Sisara, Majid Abbasi Joshi, Anand A. Chen, Rui Jeong, Woojae Tian, Ye Nayak, Krishna S. Leahy, Richard M. |
| contents | Simultaneous recording of electroencephalography (EEG) and functional MRI (fMRI) can provide a more complete view of brain function by merging high temporal and spatial resolutions. High-field ($\geq$3T) systems are standard, and require technical trade-offs, including artifacts in the EEG signal, reduced compatibility with metallic implants, high acoustic noise, and artifacts around high-susceptibility areas such as the optic nerve and nasal sinus. This proof-of-concept study demonstrates the feasibility of simultaneous EEG-fMRI at 0.55T in a visual task. We characterize the gradient and ballistocardiogram (BCG) artifacts inherent to this environment and observe reduced BCG magnitude consistent with the expected scaling of pulse-related artifacts with static magnetic field strength. This reduction shows promise for facilitating effective denoising while preserving the alpha rhythm and signal integrity. Furthermore, we tested a multimodal integration pipeline and demonstrated that the EEG power envelope corresponds with the hemodynamic BOLD response, supporting the potential to measure neurovascular coupling in this environment. We demonstrate that combined EEG-fMRI at 0.55T is feasible and represents a promising environment for multimodal neuroimaging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_13489 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Feasibility of simultaneous EEG-fMRI at 0.55 T: Recording, Denoising, and Functional Mapping Razmara, Parsa Medani, Takfarinas Sisara, Majid Abbasi Joshi, Anand A. Chen, Rui Jeong, Woojae Tian, Ye Nayak, Krishna S. Leahy, Richard M. Signal Processing Simultaneous recording of electroencephalography (EEG) and functional MRI (fMRI) can provide a more complete view of brain function by merging high temporal and spatial resolutions. High-field ($\geq$3T) systems are standard, and require technical trade-offs, including artifacts in the EEG signal, reduced compatibility with metallic implants, high acoustic noise, and artifacts around high-susceptibility areas such as the optic nerve and nasal sinus. This proof-of-concept study demonstrates the feasibility of simultaneous EEG-fMRI at 0.55T in a visual task. We characterize the gradient and ballistocardiogram (BCG) artifacts inherent to this environment and observe reduced BCG magnitude consistent with the expected scaling of pulse-related artifacts with static magnetic field strength. This reduction shows promise for facilitating effective denoising while preserving the alpha rhythm and signal integrity. Furthermore, we tested a multimodal integration pipeline and demonstrated that the EEG power envelope corresponds with the hemodynamic BOLD response, supporting the potential to measure neurovascular coupling in this environment. We demonstrate that combined EEG-fMRI at 0.55T is feasible and represents a promising environment for multimodal neuroimaging. |
| title | Feasibility of simultaneous EEG-fMRI at 0.55 T: Recording, Denoising, and Functional Mapping |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2602.13489 |