Dr. Emilie Pery Profile

Dr. Emilie Pery

at CREATIS

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 24 February 2010 Paper

Regularization in fluorescence diffuse optical tomography using prior information on the medium optical properties

E. Péry, L. Hervé, J. Dinten, F. Peyrin

Proceedings Volume 7557, 75570V (2010) https://doi.org/10.1117/12.841368

KEYWORDS: Luminescence, Optical properties, Diffuse optical tomography, Reconstruction algorithms, Geometrical optics, Tissue optics, Sensors, Signal detection, Optical testing, Light

Read Abstract +

SPIE Journal Paper | 1 March 2009 Open Access

Monte Carlo modeling of multilayer phantoms with multiple fluorophores: simulation algorithm and experimental validation

Emilie Pery, Walter Blondel, Cedric Thomas, François Guillemin

JBO, Vol. 14, Issue 02, 024048, (March 2009) https://doi.org/10.1117/12.10.1117/1.3122368

KEYWORDS: Monte Carlo methods, Luminescence, Absorption, Tissues, Computer simulations, Algorithm development, Solids, Photon transport, Tissue optics, Scattering

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 20 July 2007 Paper

Diffuse reflectance spectroscopy's sensitivity to melanic layer thickness variations: an in vitro study on skin phantoms

Marine Amouroux, Gilberto Diaz, Emilie Péry, Walter Blondel, François Guillemin

Proceedings Volume 6628, 66280Y (2007) https://doi.org/10.1117/12.727851

KEYWORDS: Melanoma, Diffuse reflectance spectroscopy, Skin, In vitro testing, Monte Carlo methods, Absorption, Scattering, Numerical simulations, Tissue optics, Reflectivity

Read Abstract +

Proceedings Article | 15 April 2005 Paper

Spectral (optical) and mechanical responses of fresh and cryopreserved issued arteries

Emilie Pery, Walter Blondel, Jean-Christophe Goebel, Jacques Didelon, Francois Guillemin

Proceedings Volume 5695, (2005) https://doi.org/10.1117/12.588636

KEYWORDS: Arteries, Scattering, Tissues, Spectroscopes, Spectrometers, Tissue optics, Luminescence, Blood vessels, In vitro testing, Diffuse reflectance spectroscopy

Read Abstract +

Cryopreservation is the only method for conserving blood vessels as future allografts with biological immunity controls. Although it affects vessels mechanical structure, no biomechanical integrity simple test is available today. Biological tissues optical properties characterization by spectroscopic methods is of interest due to their types or natures variations. Collected data complementarity contributes to "photodiagnosis" applicative prospects (cancer, vascular...). Pig carotid artery rings were tested after excision and after one month cryopreservation. An uniaxial mechanical testing device was used for ring stretching, and elongation and axial forces measurement. Circumferential large strains and stresses were calculated. Simultaneously, each artery ring optical characteristics was measured using fibered autofluorescence and elastic scattering spectrometers. Mechanical results showed nonlinear strain/stress curves and large deformations in good agreement with other referenced works. Significant differences (p<0.05) between fresh and cryopreserved rings mechanical properties were noticed. Elastic scattering spectra intensity variations were well correlated with artery mechanical properties. The standardized autofluorescence spectra were more clearly correlated with anatomo-histological changes due to cryopreservation, providing rather accurate differentiation between fresh and cryopreserved samples. This study offers a new perspective to detect changes of cryopreserved arterial samples mechanical properties. Coupling mechanical tests (uniaxial traction of arterial rings) and optical spectroscopic measurements (autofluorescence, elastic scattering) is the driving point: it allows correlating mechanical modifications and spectral variations of artery rings before and after cryopreservation. Ultimately, this new approach could help developping a device allowing non-invasive, atraumatic and contactless optical examinations of arterial graft to assess its mechanical state before reimplantation.

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years