Developing a non-invasive method for definitively diagnosing intracranial neoplasms would reduce the risks involved with diagnosis and improve the treatment of such tumors. We used magnetoencephalography to measure the power spectral densities of malignant brain tumor cells in vitro and found that meningioma and medulloblastoma cells produce unique electromagnetic signatures. Our results suggest that non-invasive identification of neoplastic tissue is possible through the use of magnetoencephalography.
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Pearlman, M., Castillo, E., Papanicolaou, A. et al. Magnetoencephalography May Allow the Electromagnetic 'Biopsy' of Central Nervous System Neoplastic Tissue. Nat Prec (2009). https://doi.org/10.1038/npre.2009.3973.1