Document Detail


Total light approach of time-domain fluorescence diffuse optical tomography.
MedLine Citation:
PMID:  18795065     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this study, time-domain fluorescence diffuse optical tomography in biological tissue is numerically investigated using a total light approach. Total light is a summation of excitation light and zero-lifetime emission light divided by quantum yield. The zero-lifetime emission light is an emitted fluorescence light calculated by assuming that the fluorescence lifetime is zero. The zero-lifetime emission light is calculated by deconvolving the actually measured emission light with a lifetime function, an exponential function for fluorescence decay. The object for numerical simulation is a 2-D 10 mm-radius circle with the optical properties simulating biological tissues for near infrared light, and contains regions with fluorophore. The inverse problem of fluorescence diffuse optical tomography is solved using time-resolved simulated measurement data of the excitation and total lights for reconstructing the bsorption coefficient and fluorophore concentration simultaneously. The mean time of flight is used as the featured data-type extracted from the time-resolved data. The reconstructed images of fluorophore concentration show good quantitativeness and spatial reproducibility. By use of the total light approach, computation is performed much faster than the conventional ones.
Authors:
Andhi Marjono; Akira Yano; Shinpei Okawa; Feng Gao; Yukio Yamada
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Optics express     Volume:  16     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-16     Completed Date:  2008-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  15268-85     Citation Subset:  IM    
Affiliation:
Department of Mechanical Engineering and Intelligent Systems, University of Electro-Communications, Chofu, Tokyo, Japan. marjono@ymdlab.mce.uec.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Image Enhancement / instrumentation*,  methods
Image Interpretation, Computer-Assisted / instrumentation*,  methods
Lighting / instrumentation*
Microscopy, Fluorescence / instrumentation*
Tomography, Optical / instrumentation*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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