1. Articles from E. Dalimier

    1-5 of 5

    1. Quality control and primo-diagnosis of transurethral bladder resections with full-field OCT

      Explore Conference Proceedings Urology
      Quality control and primo-diagnosis of transurethral bladder resections with full-field OCT

      Transurethral resections are commonly used for bladder cancer diagnosis, treatment and follow-up. Cancer staging relies largely on the analysis of muscle in the resections; however, muscle presence is uncertain at the time of the resection. An extemporaneous quality control tool would be of great use to certify the presence of muscle in the resection, and potentially formulate a primo-diagnosis, in order to ensure optimum patient care. Full-field optical coherence tomography (FFOCT) offers a fast and non-destructive method of obtaining images of biological tissues at ultrahigh resolution (1μm in all 3 directions), approaching traditional histological sections. This study aimed to ...

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      Mentions: Aquyre Biosciences

    2. High efficiency for prostate biopsy qualification with full-field OCT after training

      Explore Conference Proceedings Oncology , Urology
      High efficiency for prostate biopsy qualification with full-field OCT after training

      Full-field optical coherence tomography (FFOCT) offers a fast and non-destructive method of obtaining images of biological tissues at ultrahigh resolution, approaching traditional histological sections. In the context of prostate cancer diagnosis involving multiple biopsies, FFOCT could be used to validate the cores just after they are obtained in order to guide the number of biopsies to be performed. The aim of the study was to define and test a training protocol for efficient FFOCT prostate biopsy assessment. Three readers (a pathologist with previous experience with FFOCT, a pathologist new to FFOCT, and a urologist new to FFOCT) were trained to ...

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      Mentions: UCLA Aquyre Biosciences

    3. High resolution in-vivo imaging of skin with full field optical coherence tomography

      Explore Conference Proceedings Dermatology
      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 device was adapted for the in-vivo acquisition of stacks of images on the arm, hand and finger. Several subjects of different benign and pathological skin conditions were tested. The images ...

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      Mentions: Aquyre Biosciences ESPCI ParisTech

    4. Full field optical coherence tomography of prostate biopsies: A step towards pre-histological diagnosis?

      Explore ScienceDirect Oncology , Urology
      Full field optical coherence tomography of prostate biopsies: A step towards pre-histological diagnosis?

      Objectives To evaluate the value of full field optical coherence tomography (FFOCT) for cancer detection on prostate biopsies Patients and methods Eight consecutive patients who underwent prostate biopsies for an elevated PSA or suspicious DRE findings were included in the study. For each patient, one to three biopsy cores were imaged with FFOCT immediately after sampling. Images obtained were analyzed by a pathologist blinded to the pathological results, and classified into three categories: non-cancerous tissue, suspicion of malignancy and prostate carcinoma. A pathological correlation analysis was further performed. Results Sixteen biopsy cores were analyzed. The median FFOCT procedure time was ...

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      Mentions: Aquyre Biosciences

    5. Multimodal full-field optical coherence tomography on biological tissue: toward all optical digital pathology

      Explore Linking to Scitation Content Microscopy
      Multimodal full-field optical coherence tomography on biological tissue: toward all optical digital pathology

      Optical Coherence Tomography (OCT) is an efficient technique for in-depth optical biopsy of biological tissues, relying on interferometric selection of ballistic photons. Full-Field Optical Coherence Tomography (FF-OCT) is an alternative approach to Fourier-domain OCT (spectral or swept-source), allowing parallel acquisition of en-face optical sections. Using medium numerical aperture objective, it is possible to reach an isotropic resolution of about 1x1x1 m. After stitching a grid of acquired images, FF-OCT gives access to the architecture of the tissue, for both macroscopic and microscopic structures, in a non-invasive process, which makes the technique particularly suitable for applications in pathology. Here we report ...

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      Mentions: Aquyre Biosciences
    1-5 of 5
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    Multimodal full-field optical coherence tomography on biological tissue: toward all optical digital pathology Full field optical coherence tomography of prostate biopsies: A step towards pre-histological diagnosis? High resolution in-vivo imaging of skin with full field optical coherence tomography High efficiency for prostate biopsy qualification with full-field OCT after training Quality control and primo-diagnosis of transurethral bladder resections with full-field OCT A novel algorithm for multiplicative speckle noise reduction in ex vivo human brain OCT images Volumetric characterization of microvasculature in ex vivo human brain samples by serial sectioning optical coherence tomography Depth of focus extension in optical coherence tomography using ultrahigh chromatic dispersion of zinc selenide Retinal changes in bipolar disorder as an endophenotype candidate: Comparison of OCT-detected retinal changes in patients, siblings, and healthy controls Intraoperative optical coherence tomography guided 25G micro-amount trajectory vitrectomy for the treatment of penetrating ocular injury caused by a foreign body in the right eye: A case study Optical coherence tomography angiography reveals paradoxically decreasing choroidal thickness & increasing blood flow in remitting Vogt Koyanagi Harada syndrome A comparison of macular ganglion cell and retinal nerve fibre layer optical coherence tomographic parameters as predictors of visual outcomes of surgery for pituitary tumours