Document Detail

A theoretical and experimental study of light absorption and scattering by in vivo skin.
MedLine Citation:
PMID:  7454759     Owner:  NLM     Status:  MEDLINE    
A theoretical treatment has been developed for the optical properties of a layered structure which absorbs and scatters light. This theory predicts that the logarithm of the inverse of reflectance (LIR) of the surface should be a useful parameter for the examination of that structure. This approach has been applied to a study of skin in vivo. An instrument was constructed for use in clinical situations to measure the LIR spectrum of skin over the visible region of the spectrum (450-760 nm). The contributions to the observed spectra made by pigments and the skin structure were deduced by reference to the theoretical model. Numerical indices were used to quantify the changes in skin haemoglobin content following the application of vasoconstricting preparations. The indices also provided a means of measuring erythema and melanin pigmentation induced in the skin by exposure to ultraviolet radiation. The assessments made using this instrument were more reproducible and sensitive than judgments made by eye.
J B Dawson; D J Barker; D J Ellis; E Grassam; J A Cotterill; G W Fisher; J W Feather
Related Documents :
22463649 - Ab initio nonequilibrium molecular dynamics in the solid superionic conductor libh_{4}.
16211439 - Comparative anatomy of the porcine and human thoracic spines with reference to thoracos...
17473339 - Skin and cutaneous melanocytic lesion simulation in biomedical optics with multilayered...
22791589 - Contributions of chemical and diffusive exchange to t1ρ dispersion.
20976809 - In vivo optical path lengths and path length resolved doppler shifts of multiply scatte...
2150279 - Contribution to the measurement of optical characteristics of the skin.
22944419 - Electric field induced phase separation on electrospinning polyelectrolyte based core-s...
11909289 - Collective behavior of parametric oscillators.
22796669 - From modulated hebbian plasticity to simple behavior learning through noise and weight ...
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Physics in medicine and biology     Volume:  25     ISSN:  0031-9155     ISO Abbreviation:  Phys Med Biol     Publication Date:  1980 Jul 
Date Detail:
Created Date:  1981-03-27     Completed Date:  1981-03-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401220     Medline TA:  Phys Med Biol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  695-709     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Connective Tissue / analysis
Melanins / analysis
Models, Biological
Scattering, Radiation
Skin / anatomy & histology,  blood supply
Skin Pigmentation*
Spectrophotometry / instrumentation
Reg. No./Substance:
0/Hemoglobins; 0/Melanins

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

Previous Document:  A study of radon emitted from building materials using plastic alpha-track detectors.
Next Document:  The effective attenuation coefficient of soft tissue in the presence of Compton scattering from bone...