1. ESPCI ParisTech

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    1. Mentioned In 48 Articles

    2. Assessment of Sentinel Node Biopsies With Full-Field Optical Coherence Tomography

      Assessment of Sentinel Node Biopsies With Full-Field Optical Coherence Tomography
      Current techniques for the intraoperative analysis of sentinel lymph nodes during breast cancer surgery present drawbacks such as time and tissue consumption. Full-field optical coherence tomography is a novel noninvasive, high-resolution, fast imaging technique. This study investigated the use of full-field optical coherence tomography as an alternative technique for the intraoperative analysis of sentinel lymph nodes. Seventy-one axillary lymph nodes from 38 patients at Tenon Hospital were imaged minutes after ...
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    3. Anisotropic polyvinyl alcohol hydrogel phantom for shear wave elastography in fibrous biological soft tissue: a multimodality characterization

      Anisotropic polyvinyl alcohol hydrogel phantom for shear wave elastography in fibrous biological soft tissue: a multimodality characterization
      Shear wave elastography imaging techniques provide quantitative measurement of soft tissues elastic properties. Tendons, muscles and cerebral tissues are composed of fibers, which induce a strong anisotropic effect on the mechanical behavior. Currently, these tissues cannot be accurately represented by existing elastography phantoms. Recently, a novel approach for orthotropic hydrogel mimicking soft tissues has been developed (Millon et al 2006 J. Biomed. Mater. Res. B 30511). The mechanical anisotropy is ...
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    4. Full-Field Optical Coherence Tomography of Human Donor and Pathological Corneas

      Full-Field Optical Coherence Tomography of Human Donor and Pathological Corneas
      Purpose : To evaluate the performance of a full-field optical coherence tomography (FF-OCT) system in the study of human donor and pathological corneas and assess its suitability for use in eye banks. Methods : Our study was carried out using an FF-OCT system developed for non-invasive imaging of tissue structures in depth with ultrahigh resolution (1m in all directions). Images were acquired from eight stored human donor corneas (either edematous or after ...
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    5. High resolution in-vivo imaging of skin with full field optical coherence tomography

      High resolution in-vivo imaging of skin with full field optical coherence tomography
      Full-field OCT (FFOCT) has the ability to provide en-face images with a very good axial sectioning as well as a very high transverse resolution (about 1 microns in all directions). Therefore it offers the possibility to visualize biological tissues with very high resolution both on the axial native view, and on vertical reconstructed sections. Here we investigated the potential dermatological applications of in-vivo skin imaging with FFOCT. A commercial FFOCT ...
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    6. Feature Of The Week: Feature Of The Week 1/26/14: ESPCI-ParisTech Investigates Full-Field Optical Coherence Tomograpy (FF-OCT) Shear Wave Elastography

      Feature Of The Week: Feature Of The Week 1/26/14: ESPCI-ParisTech Investigates Full-Field Optical Coherence Tomograpy (FF-OCT) Shear Wave Elastography
      ... ESPCI ParisTech.

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    7. From supersonic shear wave imaging to full-field optical coherence shear wave elastograph

      From supersonic shear wave imaging to full-field optical coherence shear wave elastograph
      Elasticity maps of tissue have proved to be particularly useful in providing complementary contrast to ultrasonic imaging, e.g., for cancer diagnosis at the millimeter scale. Optical coherence tomography (OCT) offers an endogenous contrast based on singly backscattered optical waves. Adding complementary contrast to OCT images by recording elasticity maps could also be valuable in improving OCT-based diagnosis at the microscopic scale. Static elastography has been successfully coupled with full-field ...
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    8. LLTech and Research Partners win a 800K€ grant for FF-OCT NOCT project

      LLTech and Research Partners win a 800K€ grant for FF-OCT NOCT project
      NOCT program is research program who is awarded a 800K grant from the ANR (Agence Nationale de la Recherche). The target is to develop a 3D guided needle endoscope system. LLTech collaborates with Institut Langevin, SurgiQual Institute, Universit Joseph Fourier and Centre Hospitalier de Grenoble. The current biopsy procedure is to introduce a needle inside the patient towards a given target using echography imaging for control of the position. Reaching ...
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    9. 3D static elastography at the micrometer scale using Full Field OCT

      3D static elastography at the micrometer scale using Full Field OCT
      Full-Field OCT (FF-OCT) is able to image biological tissues in 3D with micrometer resolution. In this study we add elastographic contrast to the FF-OCT modality. By combining FF-OCT with elastography, we create a virtual palpation map at the micrometer scale. We present here a proof of concept on multi-layer phantoms and preliminary results on ex vivo biological samples such as porcine cornea, human breast tissues and rat heart. The 3D ...
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    10. Imaging of non-tumorous and tumorous human brain tissues with full-field optical coherence tomography

      Imaging of non-tumorous and tumorous human brain tissues with full-field optical coherence tomography
      A prospective study was performed on neurosurgical samples from 18 patients to evaluate the use of full-field optical coherence tomography (FF-OCT) in brain tumor diagnosis. FF-OCT captures en face slices of tissue samples at 1 m resolution in 3D to a penetration depth of around 200 m. A 1 cm 2 specimen is scanned at a single depth and processed in about 5 min. This rapid imaging process is non-invasive ...
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    11. Large Field, High Resolution Full-Field Optical Coherence Tomography: A Pre-clinical Study of Human Breast Tissue and Cancer Assessment

      Large Field, High Resolution Full-Field Optical Coherence Tomography: A Pre-clinical Study of Human Breast Tissue and Cancer Assessment
      We present a benchmark pilot study in which high-resolution Full-Field Optical Coherence Tomography (FF-OCT) was used to image human breast tissue and is evaluated to assess its ability to aid the pathologists management of intra-operative diagnoses. FF-OCT imaging safety was investigated and agreement between FF-OCT and routinely prepared histopathological images was evaluated. The compact setup used for this study provides 1 mm3 resolution and 200 mm imaging depth, and a ...
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      2. About ESPCI ParisTech

        ESPCI ParisTech

        ESPCI ParisTech is a major institution of higher education an internationally renowned research center, and a fertile ground of innovation for industry.  Founded by the City of Paris in 1882, for over a century the School has attracted leading scientific innovators like Nobel Prize laureates Pierre and Marie Curie, Paul Langevin, Frédéric Joliot-Curie, Pierre-Gilles de Gennes, and Georges Charpak, who continue to contribute to the institution’s international reputation.  The School’s culture of excellence remains as vibrant as ever. Fully 60% of graduates go on to complete a thesis and earn their PhD. The School’s teaching faculty and researchers are building tomorrow’s knowledge base, publishing an article a day in top international scientific journals ; inventing the industry of the future, filing for a patent every single week.  A model of excellence and an illustration of the "French exception", ESPCI ParisTech is a founding member of ParisTech, the Paris Institute of Science and Technology.  Also see Langevin Institute (L’institut Langevin).