Various methods have been developed to assess the skin stiffness to assist the clinician for therapeutic monitoring or to improve diagnosis. The objective of this study was to evaluate the reliability of an acoustical characterization method based on impact analysis. This impact-based analysis method (IBAM) is based on the analysis of the variation of the force as a function of time obtained during the impact of a hammer instrumented with a force sensor on a flat-ended cylindrical punch placed in contact with a soft tissue mimicking phantom. A dedicated signal processing technique allowed us to determine an indicator Δt defined as the time difference between the impact of the hammer and the punch rebound on the hammer. The variation of Δt was correlated with the elastic properties of the sample. The sensitivities were assessed using homogeneous and bilayer structures with various thickness and rigidity, formed by soft tissues mimicking agar-based phantoms. In terms of sensitivity, IBAM can discriminate a Young's modulus difference of approximately 5 kPa with spatial sensitivity of 0.2 mm. The results open the way for the development of an easy-to-use, non-invasive and objective method that could be used in cosmetics and dermatology as a decision support system.
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13 May 2024
186th Meeting of the Acoustical Society of America and the Canadian Acoustical Association
13–17 May 2024
Ottawa, Ontario, Canada
Biomedical Acoustics: Paper 4aBAa5
October 10 2024
Mechanical characterization of soft tissue mimicking phantoms by impact analysis
Arthur Bouffandeau
;
Arthur Bouffandeau
1
CNRS, Univ Paris Est Créteil, Univ Gustave Eiffel
, UMR 8208, MSME, Créteil, Val-de-Marne, 94010, FRANCE
; [email protected]
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Anne-Sophie Poudrel;
Anne-Sophie Poudrel
2
CNRS, Univ Paris Est Créteil, Univ Gustave Eiffel
, UMR 8208, MSME, Créteil, Val-de-Marne, 94010, FRANCE
; [email protected]
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Giuseppe Rosi
;
Giuseppe Rosi
3
CNRS, Univ Paris Est Créteil, Univ Gustave Eiffel
, UMR 8208, MSME, Créteil, Val-de-Marne, 94010, FRANCE
; [email protected]
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Vu-Hieu Nguyen
;
Vu-Hieu Nguyen
4
CNRS, Univ Paris Est Créteil, Univ Gustave Eiffel
, UMR 8208, MSME, Créteil, Val-de-Marne, 94010, FRANCE
; [email protected]
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Charles-Henri Flouzat-Lachaniette;
Charles-Henri Flouzat-Lachaniette
5
Service de Chirurgie Orthopédique et Traumatologique, Hôpital Henri Mondor AP-HP
, CHU Paris 12, Université Paris-Est, FRANCE
; [email protected]
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Guillaume Haiat
Guillaume Haiat
7
CNRS, Univ Paris Est Créteil, Univ Gustave Eiffel
, UMR 8208, MSME, Créteil, Val-de-Marne, 94010, FRANCE
; [email protected]
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Proc. Mtgs. Acoust. 54, 020002 (2024)
Article history
Received:
June 06 2024
Accepted:
August 21 2024
Connected Content
Citation
Arthur Bouffandeau, Anne-Sophie Poudrel, Giuseppe Rosi, Vu-Hieu Nguyen, Charles-Henri Flouzat-Lachaniette, Jean-Paul Meningaud, Guillaume Haiat; Mechanical characterization of soft tissue mimicking phantoms by impact analysis. Proc. Mtgs. Acoust. 13 May 2024; 54 (1): 020002. https://doi.org/10.1121/2.0001945
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