Comparison of intraoperative functional brain maps obtained with RGB imaging with preoperative functional magnetic resonance Imaging maps: a task-based and resting-state study

Charly Caredda; Anne Josset; Eric Van Reeth; Laurent Mahieu-Williame; Raphaël Sablong; Michaël Sdika; Fabien C. Schneider; Jacques Guyotat; Bruno Montcel

doi:10.1117/12.2621507

24 May 2022 Comparison of intraoperative functional brain maps obtained with RGB imaging with preoperative functional magnetic resonance Imaging maps: a task-based and resting-state study

Charly Caredda, Anne Josset, Eric Van Reeth, Laurent Mahieu-Williame, Raphaël Sablong, Michaël Sdika, Fabien C. Schneider, Jacques Guyotat, Bruno Montcel

Author Affiliations +

Proceedings Volume 12146, Clinical Biophotonics II; 1214605 (2022) https://doi.org/10.1117/12.2621507
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

RGB optical imaging is a marker-free, contactless, and non-invasive technique that is able to monitor hemodynamic brain response following neuronal activation using task-based and resting-state procedures. As opposed to functional task-based analyses, resting-state functional connectivity aims to identify the low frequency cortical hemodynamic fluctuations during patient rest that are linked to resting-state networks. Using intraoperative optical imaging, the main issues of using resting-state procedures come from the partial access to the brain cortex, whereas fMRI or fNIRS resting-state models used whole brain imaging. Task-based fMRI brain maps were compared to intraoperative optical functional brain maps by registering these maps to a preoperative anatomical MRI volume. The objective is to improve the patient care process before, during and after neurosurgery. With the task-based procedure, the RGB brain map showed a good correspondence with task-based fMRI (DICE = 0:75). With the resting-state procedure, the RGB brain map showed a good correspondence with task-based fMRI (seed correlation method: DICE = 0:58 and ICA method: DICE = 0:75).

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Charly Caredda, Anne Josset, Eric Van Reeth, Laurent Mahieu-Williame, Raphaël Sablong, Michaël Sdika, Fabien C. Schneider, Jacques Guyotat, and Bruno Montcel "Comparison of intraoperative functional brain maps obtained with RGB imaging with preoperative functional magnetic resonance Imaging maps: a task-based and resting-state study", Proc. SPIE 12146, Clinical Biophotonics II, 1214605 (24 May 2022); https://doi.org/10.1117/12.2621507

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