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Optical Sensor for Photodynamic Detection of Oral Pathology

This study is enrolling participants by invitation only.
Information provided by University of California, Irvine

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Descriptive Information Fields
Brief Title  Optical Sensor for Photodynamic Detection of Oral Pathology
Official Title  Optical Sensor for Photodynamic Detection of Oral Pathology
Brief Summary

At Beckman Laser Institute, University of California, Irvine, we have developed diagnostic device call frequency-domain photon migration(FDPM and Optical Coherence tomography (OCT).

OCT is an imaging technique capable of performing high-resolution,cross-sectional imaging. OCT enables real-time, in situ visualization of tissue microstructure without the need to excise and process the specimen as required for conventional biopsy and histopathology.

FDPM technique measured in vivo using the the wavelength-dependent behavior of absorption and scattering.

  • Absorption measurements determine the water concentration, oxyhemoglobin concentration, deoxyhemoglobin concentration,total hemoglobin concentration, oxygen saturation, and fat percentage.
  • Scattering measurements determine the cell volume fraction,average cell size, and tissue structural heterogeneity.
Detailed Description

This study determined the change in the optical properties of oral tissues, and combine these with conventional semiquantitative histopathological to have information of the oral pathology.

The study to determine the absorption and reflection spectra of healthy and pathological oral tissues and to correlate these with oral pathology. Rationale is that tissue architecture, components, metabolic processes and vasculature change with the onset and progression of pathology. Each of these factors has optical signatures that detected non-invasively.

A soft small fiberoptic pen shape sensor with fiberoptic-based spectrographic system place in selective oral cavity. Six measurements and image will be taking within approximate 5 minutes.

The possible risks and/or discomforts associated with the procedures described in this study include some discomfort of having the optical tool placed in the mouth the device will be removed immediately. There may also be risks to participating that are currently unforeseeable.

There are no direct benefit but potential benefit to society by helping to develop new tools for early detection, monitoring, screening for oral pathology

Study Phase
Study Type  Observational
Study Design  Case-Only, Prospective
Primary Outcome Measure 
Secondary Outcome Measure 
Condition  Oral Diseaes
Abnormal Oral Mucosa
Intervention  Device: OCT/DOS
MEDLINE PMIDs
Links
Recruitment Information Fields
Recruitment Status  Enrolling by invitation
Enrollment  84
Start Date  April 2003
Completion Date July 2012
Eligibility Criteria 

Inclusion Criteria:

  • Male or Female age 18 years and older

Exclusion Criteria:

  • Age less than 18 years old
Gender Both
Ages 18 Years to 75 Years
Accepts Healthy Volunteers Yes
Contacts ††
Location Countries  United States
Administrative Information Fields
NCT ID  NCT00540774
Organization ID RR-01192, EB-00293
Secondary IDs †† P41-RR01192;NIH-LAMMP
Study Sponsor  University of California, Irvine
Collaborators †† Beckman Laser Institute Medical Clinic
Otolaryngology Medical Clinic,University of California, Irvine
Genneral Clinical Research Center, University of California, Irvine
Investigators 
Principal Investigator:     Petra Wilder-Smith, DDS,PhD     Beckman Laser Institute, University of Calfornia Irvine    
Information Provided By University of California, Irvine
Verification Date January 2008
First Received Date  October 4, 2007
Last Updated Date January 3, 2008

 †    Required WHO trial registration data element.
††   WHO trial registration data element that is required only if it exists.




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