Medical optical imaging

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Medical optical imaging

Medical optical imaging includes the acquisition and display of human body images, at various scales, produced by a number of physical phenomena such as photon absorption, emission, scattering and reflection. All biological tissues exhibit optical properties. For example, all molecules absorb several wavelengths ; choosing the proper wavelengths allows selecting the molecules to be imaged. Images are obtained by processing the data supplied by the tissue optical properties. These imaging techniques aimed at acquiring anatomical, functional, molecular and metabolic information in order to contribute to the understanding of living tissues, healthy or pathological, in an interventional or diagnostic purpose.

We are interested in the wavelength range including UV, visible, near-, mid- , far-infrared and TeraHerz. In this spectral range, optical imaging has numerous advantages. Indeed, in addition to the selectivity mentioned above, optical imaging does not use ionizing radiation or radioactive elements ; the technique employs non invasive processes which can be repeated safely and allows to differentiate biological structures on the basis of their chemical composition. Moreover, the technologies used lead to instruments exhibiting smaller sizes and lower costs than CT (computed tomography), MRI, PET … Some of these devices are well adapted for a use at the point of care.

Over the last years, medical optical imaging is constantly evolving  and new technologies have arisen resulting in medical devices already on the market and many others at an advanced development stage.

Since the ophtamologists’ slit-lamp, otorhinolaryngologists’ laryngoscope, urologists’ first rigid endoscopes, a huge amount of progress has been achieved, particularly with the advent of optical fibers, lasers, miniaturized cameras, display screens and image processing algorithms.

The most outstanding recent achievements include among others: fluorescence imaging, OCT (optical coherent tomography), confocal endomicroscopy, photo-acoustic imaging, polarimetric imaging, Raman spectroscopy, DRS (diffuse reflectance spectroscopy), multiphotonic imaging, DOT (diffuse optical tomography), hyperspectral imaging …

Optical biopsy has become a reality in a number of medical fields.
Optical imaging is now a major component of image guided surgery and theranostic development. Augmented reality and deep learning are today’s technological advances which lead and continue to lead to improved images and perceptions.

Medical optical imaging

In pictures

Referent : Marc Faucheux – marc.faucheux@l-mdc.fr

  • 3rd National Life Imaging Conference – CNIV 2019
    Organized by FLI (France Life Imaging) and its partners
    February 5 – 6, 2019
    Paris
    Informations
  • Photonics West 2019
    The world’s largest photonics technologies event, consisting of three conferences (BiOS, LASE & OPTO) and two world-class exhibitions (BiOS & LASE)
    2 – 7 February 2019
    The Moscone Center
    San Francisco, California, United States
    Informations
  • Medical Imaging 2019
    16 – 21 February 2019
    Town and Country Resort & Convention Center
    San Diego, California, United States
    Informations
  • ECBO. European Conference on Biomedical Optics
    23 – 27 june 2019
    ICM-International Congress Center
    Munich, Germany
    Informations
  • FLUOPTICS receives the FDA’s marketing authorization for its Fluobeam® for the real-time detection of parathyroid during surgery.
    Discover the article  – Website
  • Photoacoustic Imaging: Technology, Market and Trends
    From research labs to clinical products
    Clémentine Bouyé and Marc Faucheux
    Découvrir l’article 
  • Line-field confocal optical coherence tomography for high-resolution noninvasive imaging of skin tumors
    Arnaud Dubois, Olivier Levecq, Hicham Azimani, David Siret, Anaïs Barut, Mariano Suppa, Véronique del Marmol, Josep Malvehy, Elisa Cinotti, Pietro Rubegni, Jean-Luc Perrot
    Accéder au fichier PDF
  • Photoacoustic tomography: principles and advances
    Jun Xia,  Junjie Yao and Lihong V. Wang
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  • Photoacoustic microscopy and computed tomography: from bench to bedside
    Lihong V. Wang and Liang Gao
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  • A Practical Guide to Photoacoustic Tomography in the Life Sciences
    Lihong V. Wang and Junjie Yao
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  • Photoacoustic Tomography: In Vivo Imaging from Organelles to Organs
    Lihong V. Wang and Song Hu
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