2 March 2010 Spectroscopic evaluation of photodynamic therapy of the intraperitoneal cavity
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Abstract
We present the results of spectroscopic measurements of diffuse reflectance and fluorescence before and after photodynamic therapy of healthy canine peritoneal cavity. Animals were treated intra-operatively after iv injection of the benzoporphyrin derivative (BPD). The small bowel was treated using a uniform light field projected by a microlens-tipped fiber. The cavity was then filled with scattering medium and the remaining organs were treated using a moving diffuser. Diffuse reflectance and fluorescence measurements were made using a multi-fiber optical probe positioned on the surface of various tissues within the cavity before and after illumination. The measured data were analyzed to quantify hemoglobin concentration and oxygenation and sensitizer concentration.
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Jarod C. Finlay, Jarod C. Finlay, Julia L. Sandell, Julia L. Sandell, Timothy C. Zhu, Timothy C. Zhu, Robert Lewis, Robert Lewis, Keith A. Cengel, Keith A. Cengel, Stephen M. Hahn, Stephen M. Hahn, } "Spectroscopic evaluation of photodynamic therapy of the intraperitoneal cavity", Proc. SPIE 7551, Optical Methods for Tumor Treatment and Detection: Mechanisms and Techniques in Photodynamic Therapy XIX, 755109 (2 March 2010); doi: 10.1117/12.843184; https://doi.org/10.1117/12.843184
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