Unknown

Dataset Information

0

Ictal fMRI: Mapping Seizure Topography with Rhythmic BOLD Oscillations.


ABSTRACT: Functional magnetic resonance imaging (fMRI) has shown elevations in the blood-oxygen-level-dependent (BOLD) signal associated with, but insensitive for, seizure. Rather than evaluating absolute BOLD signal elevations, assessing rhythmic oscillations in the BOLD signal with fMRI may improve the accuracy of seizure mapping. We report a case of a patient with non-convulsive, right hemispheric seizures who underwent fMRI. Unbiased processing methods revealed a map of rhythmically oscillating BOLD signal over the cortical region affected by seizure, and synchronous BOLD signal in the contralateral cerebellum. High-resolution fMRI may help identify the spatial topography of seizure and provide insights into seizure physiology.

SUBMITTER: Fischer D 

PROVIDER: S-EPMC9775283 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

altmetric image

Publications

Ictal fMRI: Mapping Seizure Topography with Rhythmic BOLD Oscillations.

Fischer David D   Rapalino Otto O   Fecchio Matteo M   Edlow Brian L BL  

Brain sciences 20221213 12


Functional magnetic resonance imaging (fMRI) has shown elevations in the blood-oxygen-level-dependent (BOLD) signal associated with, but insensitive for, seizure. Rather than evaluating absolute BOLD signal elevations, assessing rhythmic oscillations in the BOLD signal with fMRI may improve the accuracy of seizure mapping. We report a case of a patient with non-convulsive, right hemispheric seizures who underwent fMRI. Unbiased processing methods revealed a map of rhythmically oscillating BOLD s  ...[more]

Similar Datasets

| S-EPMC5607110 | biostudies-literature
| S-EPMC7645614 | biostudies-literature
| S-EPMC3859220 | biostudies-literature
| S-EPMC3051422 | biostudies-literature
| S-EPMC3188690 | biostudies-literature
| S-EPMC3779215 | biostudies-literature
| S-EPMC4340775 | biostudies-literature
| S-EPMC4526310 | biostudies-literature
| S-EPMC4832091 | biostudies-literature
| S-EPMC5774799 | biostudies-literature