Optical non-invasive technique for vessel imaging: II. A simplified photon diffusion analysis
2000 (English)In: Physics in Medicine and Biology, ISSN 0031-9155, E-ISSN 1361-6560, Vol. 45, no 12, 3779-3792 p.Article in journal (Refereed) Published
The purpose of this paper is to explain theoretically the origin of previously presented experimental results by an optical non-invasive method using NIR for imaging blood vessels based on a specific combination of several physical parameters. The theoretical model is based on the diffusion approximation derived from the transport theory deep in a bulk tissue. An analytical solution was obtained describing photon behaviour under certain conditions during vessel identification. The modelled results indicate that the vessel identification facility depends upon source-detector separation and vessel depth, and does not depend essentially on the radiant power from the light source. The solution offers a relatively simple theoretical explanation of the experimental results and can be applied to several other clinical applications using similar technical solutions.
Place, publisher, year, edition, pages
2000. Vol. 45, no 12, 3779-3792 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-32636DOI: 10.1088/0031-9155/45/12/319Local ID: 18553OAI: oai:DiVA.org:liu-32636DiVA: diva2:253459