DocumentCode :
2352750
Title :
P1B-2 In-Vivo Exploration of the Mechanical Properties of Healthy and Pathological Human Dermis with 2D High Resolution Elastography
Author :
Gahagnon, S. ; Mofid, Y. ; Ossant, F. ; Josse, G.
Author_Institution :
LUSSI FRE CNRS, Tours
fYear :
2006
fDate :
2-6 Oct. 2006
Firstpage :
1242
Lastpage :
1245
Abstract :
This work was based on 2D high frequency elastography used to describe, quantitatively, the mechanical behavior of human dermis in vivo in terms of axial strain and lateral displacement. The experiment material was the combination of 2 devices. First, an extensiometer developed by LMARC laboratory for in-vivo skin applications using uniaxial stretching stress. Second, our 20 MHz real time sonographer, Dermcup 2020trade. Filtered and Staggered Strain Estimation algorithm (SSE + low-pass filtering), was used to produce elastograms. A temporal cumulative technique was applied and kinetics of the axial strain, epsiv(t), and lateral retraction were obtained for homogeneous ROIs in the dermis. Kinetic profiles were useful to study several characteristics: inter-individual variations, viscoelasticity and reproducibility. Results on pathological dermis were discussed in the conclusion
Keywords :
biomechanics; biomedical ultrasonics; elasticity; patient diagnosis; skin; 20 MHz; 2D high frequency elastography; 2D high resolution elastography; Dermcup 2020; LMARC laboratory; axial strain kinetics; elastograms; extensiometer; healthy human dermis; in-vivo biological tissue mechanical properties; lateral displacement; lateral retraction; pathological human dermis; real time sonographer; staggered strain estimation algorithm; temporal cumulative technique; uniaxial stretching stress; Capacitive sensors; Dermis; Frequency; Humans; In vivo; Kinetic theory; Laboratories; Low pass filters; Mechanical factors; Pathology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
ISSN :
1051-0117
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
Type :
conf
DOI :
10.1109/ULTSYM.2006.319
Filename :
4152175
Link To Document :
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