Digital modeling of a heterogeneous and dynamic brain phantom: application to the choice of an RGB camera for intraoperative functional brain mapping studies

Charly Caredda; Laurent Mahieu-Williame; Raphaël Sablong; Michaël Sdika; Fabien C. Schneider; Thiébaud Picart; Jacques Guyotat; Bruno Montcel

doi:10.1117/12.2670750

9 August 2023 Digital modeling of a heterogeneous and dynamic brain phantom: application to the choice of an RGB camera for intraoperative functional brain mapping studies

Charly Caredda, Laurent Mahieu-Williame, Raphaël Sablong, Michaël Sdika, Fabien C. Schneider, Thiébaud Picart, Jacques Guyotat, Bruno Montcel

Author Affiliations +

Proceedings Volume 12628, Diffuse Optical Spectroscopy and Imaging IX; 1262824 (2023) https://doi.org/10.1117/12.2670750
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

RGB imaging is a non-invasive technique that is able to monitor hemodynamic brain responses following neuronal activation during neurosurgery. These cameras are often present in operating rooms, but a robust quantification is complicated to perform during neurosurgery. Liquid blood have been proposed, but it is not possible to model hemodynamic responses similar to those that occur in the brain. To overcome this issue, we propose a 3D brain model, including activated, non-activated grey matter and temporal hemodynamic fluctuations using Monte Carlo simulations. Several setups were modeled to evaluate their impact for identifying activated brain areas using statistical parametric mapping.

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Charly Caredda, Laurent Mahieu-Williame, Raphaël Sablong, Michaël Sdika, Fabien C. Schneider, Thiébaud Picart, Jacques Guyotat, and Bruno Montcel "Digital modeling of a heterogeneous and dynamic brain phantom: application to the choice of an RGB camera for intraoperative functional brain mapping studies", Proc. SPIE 12628, Diffuse Optical Spectroscopy and Imaging IX, 1262824 (9 August 2023); https://doi.org/10.1117/12.2670750

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