Document Detail

Comparison of two in vivo measurements for skin surface topography.
MedLine Citation:
PMID:  23279017     Owner:  NLM     Status:  Publisher    
BACKGROUND/PURPOSE: Non-contact methods for quantifying skin surface topography in vivo are common in skin research. The surface evaluation of living skin (SELS) and the phaseshift rapid in vivo measurement of skin (PRIMOS) are two approaches to measure skin surface roughness and wrinkling via optical methods. The aim of this study was to compare the reliability and interrelatedness of the parameters obtained by both technologies. METHODS: Three repeated measurements were conducted on four skin areas (from distal to proximal) on the volar forearm skin in 12 healthy young subjects with two different instruments using the SELS and PRIMOS methods. Subjects mean age was 32.9 (SD 7.2) years. Skin phototypes were II (n = 7), III (n = 4), and IV (n = 1). The SELS parameters, smoothness (SE(sm) ), roughness (SE(r) ), scaliness (SE(sc) ), and wrinkles (SE(w) ), and a range of DIN/ISO surface roughness parameters were obtained. Intraclass correlation coefficients to estimate the reliabilities and correlation coefficients for estimating strengths and directions of relationships were applied. RESULTS: Values of obtained parameters were very well comparable across the four skin areas. Reliability of the four SELS parameters was very high ranging between 0.95 and 1.00. Reliability coefficients for the roughness parameters varied between 0.35 and 1.00, whereas half of all PRIMOS estimates showed measurement errors less than 20%. SELS and the PRIMOS roughness parameters were largely unrelated. CONCLUSION: Both measurement technologies provide reliable estimates indicating that skin surface measures of the volar forearm in young adults can differentiate between skin areas of different persons or different treatments in clinical studies. Skin surface topography of the volar forearm is comparable from distal to proximal assuring baseline comparability after randomization in clinical trials. SELS and PRIMOS roughness parameters of the volar forearm are not comparable and contain different types of information.
Jan Kottner; Marianne Schario; Natalie Garcia Bartels; Ellina Pantchechnikova; Kathrin Hillmann; Ulrike Blume-Peytavi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-29
Journal Detail:
Title:  Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)     Volume:  -     ISSN:  1600-0846     ISO Abbreviation:  Skin Res Technol     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-1-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9504453     Medline TA:  Skin Res Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.
Department of Dermatology and Allergy, Clinical Research Center for Hair and Skin Science, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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