scholarly journals Pancreatic tumor margin detection by oblique incidence diffuse reflectance spectroscopy

2011 ◽  
Author(s):  
Alejandro Garcia-Uribe ◽  
Cheng-Chung Chang ◽  
Jun Zou ◽  
Bhaskar Banerjee ◽  
John Kuczynski ◽  
...  
Keyword(s):  
Oblique Incidence ◽  
Diffuse Reflectance ◽  
Pancreatic Tumor ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Tumor Margin ◽  
Margin Detection

scholarly journals Single-Fiber Diffuse Reflectance Spectroscopy and Spatial Frequency Domain Imaging in Surgery Guidance: A Study on Optical Phantoms

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7502
Author(s):  
Polina S. Tseregorodtseva ◽  
Kirill E. Buiankin ◽  
Boris P. Yakimov ◽  
Armais A. Kamalov ◽  
Gleb S. Budylin ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Frequency Domain ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Optical Techniques ◽  
Tumor Margin ◽  
Spatial Frequency Domain Imaging ◽  
Margin Detection ◽  
Spatial Frequency Domain

Diffuse reflectance spectroscopy (DRS) and imaging are increasingly being used in surgical guidance for tumor margin detection during endoscopic operations. However, the accuracy of the boundary detection with optical techniques may depend on the acquisition parameters, and its evaluation is in high demand. In this work, using optical phantoms with homogeneous and heterogeneous distribution of chromophores mimicking normal and pathological bladder tissues, the accuracy of tumor margin detection using single-fiber diffuse reflectance spectroscopy and spatial frequency domain imaging was evaluated. We also showed how the diffuse reflectance response obtained at different spatial frequencies with the spatial frequency domain imaging technique could be used not only to quantitatively map absorption and scattering coefficients of normal tissues and tumor-like heterogeneities but also to estimate the tumor depth localization. The demonstrated results could be helpful for proper analysis of the DRS data measured in vivo and for translation of optical techniques for tumor margin detection to clinics.

T1379 First Application of Oblique Incidence Diffuse Reflectance Spectroscopy in Pancreatic Cancer- Potential use in Surgery

2010 ◽  
Vol 138 (5) ◽  
pp. S-549-S-550
Author(s):  
Bhaskar Banerjee ◽  
Alejandro Garcia-Uribe ◽  
John Kuczynski ◽  
Evan Ong ◽  
Erin S. Marner ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Oblique Incidence ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Potential Use
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