Journal
DIAGNOSTICS
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics11112067
Keywords
resting-state; functional connectivity; intraoperative imaging; optical imaging; RGB imaging
Categories
Funding
- LABEX PRIMES of Universite de Lyon [ANR-11-LABX-0063, ANR-11-IDEX-0007]
- Cancropole Lyon Auvergne Rhone Alpes (CLARA) [ANR-11-INBS-000]
- France Life Imaging [ANR-11-INBS-0006]
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RGB optical imaging is a valuable technique for monitoring hemodynamic brain responses and identifying resting-state networks intraoperatively. It shows strong correspondence with RGB task-based imaging and electrical brain stimulation. This technique has advantages over functional task-based analyses, with shorter data acquisition time, simpler operation, and lower requirements for patients unable to perform tasks.
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. Magnetic resonance imaging (fMRI) and functional near infra-red spectroscopy (fNIRS) resting-state procedures cannot be used intraoperatively but RGB imaging provides an ideal solution to identify resting-state networks during a neurosurgical operation. We applied resting-state methodologies to intraoperative RGB imaging and evaluated their ability to identify resting-state networks. We adapted two resting-state methodologies from fMRI for the identification of resting-state networks using intraoperative RGB imaging. Measurements were performed in 3 patients who underwent resection of lesions adjacent to motor sites. The resting-state networks were compared to the identifications provided by RGB task-based imaging and electrical brain stimulation. Intraoperative RGB resting-state networks corresponded to RGB task-based imaging (DICE:0.55 & PLUSMN;0.29). Resting state procedures showed a strong correspondence between them (DICE:0.66 & PLUSMN;0.11) and with electrical brain stimulation. RGB imaging is a relevant technique for intraoperative resting-state networks identification. Intraoperative resting-state imaging has several advantages compared to functional task-based analyses: data acquisition is shorter, less complex, and less demanding for the patients, especially for those unable to perform the tasks.
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