Intraoperative guidance system for tumor surgery
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United States of America Patent
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Jul 14, 2020
Grant Date -
Feb 15, 2018
app pub date -
Oct 9, 2017
filing date -
Feb 11, 2014
priority date (Note) -
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Abstract
The current invention pertains to a system and methods of identifying a site in a tissue of a patient as neoplastic or normal. The system comprises a source of electromagnetic signals; an optical probe which delivers the electromagnetic signals to a working end of the probe; a spectrometer which acquires diffuse reflectance electromagnetic signals returned from the site probed by the optical probe. The spectrometer processes the diffuse reflectance signals to produce a diffuse reflectance spectra which is transmitted to a system controller programmed to analyze the diffuse reflectance spectra to calculate hemoglobin concentration, hemoglobin oxygenation, and/or diffuse reflectance intensity of signals having wavelength of about 700 nm. These parameters are used to identify the site as neoplastic or normal. The system of current invention can be used in identifying neoplastic sites in brain in an intraoperative manner, for example, during a pediatric brain surgery.
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