Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Two-photon autofluorescence spectroscopy of oral mucosa tissue

[+] Author Affiliations
Kert Edward, Tuya Shilagard, Suimin Qiu, Gracie Vargas

The Univ. of Texas Medical Branch (USA)

Proc. SPIE 7903, Multiphoton Microscopy in the Biomedical Sciences XI, 79031Q (February 28, 2011); doi:10.1117/12.875049
Text Size: A A A
From Conference Volume 7903

  • Multiphoton Microscopy in the Biomedical Sciences XI
  • Ammasi Periasamy; Karsten König; Peter T. C. So
  • San Francisco, California, USA | January 22, 2011

abstract

The survival rate for individuals diagnosed with oral cancer is correlated with the stage of detection. Thus the development of novel techniques for the earliest possible detection of malignancies is of critical importance. Single photon (1P) autofluorescence spectroscopy has proven to be a powerful diagnostic tool in this regard, but 2P (two photon) spectroscopy remains essentially unexplored. In this investigation, a spectroscopic system was incorporated into a custom-built 2P laser scanning microscope. Oral cancer was induced in the buccal pouch of Syrian Golden hamsters by tri-weekly topical application of 9,10-dimethyl-1,2-benzanthracene (DMBA).Three separated sites where investigated in each hamster at four excitation wavelengths from 780 nm to 890 nm. A Total of 8 hamsters were investigated (4 normal and 4 DMBA treated). All investigated sites were imaged via 2p imaging, marked for biopsy, processed for histology and H&E staining, and graded by a pathologist. The in vivo emission spectrum for normal, mild/high grade dysplasia and squamous cell carcinoma is presented. It is shown that the hamsters with various stages of dysplasia are characterized by spectral differences as a function of depth and excitation wavelength, compared to normal hamsters.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Kert Edward ; Tuya Shilagard ; Suimin Qiu and Gracie Vargas
"Two-photon autofluorescence spectroscopy of oral mucosa tissue", Proc. SPIE 7903, Multiphoton Microscopy in the Biomedical Sciences XI, 79031Q (February 28, 2011); doi:10.1117/12.875049; http://dx.doi.org/10.1117/12.875049


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.