1. Multimodal optical analysis discriminates freshly extracted human sample of gliomas, metastases and meningiomas from their appropriate controls
- Author
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Zanello, M., Poulon, F., Pallud, J., Varlet, P., Hamzeh, H., Abi Lahoud, G., Andreiuolo, F., Ibrahim, A., Pages, M., Chretien, F., Di Rocco, F., Dezamis, E., Nataf, F., Turak, B., Devaux, B., Abi Haidar, D., Imagerie et Modélisation en Neurobiologie et Cancérologie (IMNC (UMR_8165)), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Hospices Civils de Lyon (HCL), and Université Paris Diderot - Paris 7 (UPD7)
- Subjects
Adult ,Aged, 80 and over ,Male ,[PHYS]Physics [physics] ,Microscopy ,Optical Imaging ,Glioma ,Middle Aged ,Combined Modality Therapy ,Multimodal Imaging ,Article ,Case-Control Studies ,Image Processing, Computer-Assisted ,Humans ,Female ,Neoplasm Metastasis ,Meningioma ,Aged ,Neoplasm Staging - Abstract
International audience; Delineating tumor margins as accurately as possible is of primordial importance in surgical oncology: extent of resection is associated with survival but respect of healthy surrounding tissue is necessary for preserved quality of life. The real-time analysis of the endogeneous fluorescence signal of brain tissues is a promising tool for defining margins of brain tumors. The present study aims to demonstrate the feasibility of multimodal optical analysis to discriminate fresh samples of gliomas, metastases and meningiomas from their appropriate controls. Tumor samples were studied on an optical fibered endoscope using spectral and fluorescence lifetime analysis and then on a multimodal set-up for acquiring spectral, one and two-photon fluorescence images, second harmonic generation signals and two-photon fluorescence lifetime datasets. The obtained data allowed us to differentiate healthy samples from tumor samples. These results confirmed the possible clinical relevance of this real-time multimodal optical analysis. This technique can be easily applied to neurosurgical procedures for a better delineation of surgical margins.
- Published
- 2017
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