1. Featured Articles

    1-9 of 9
    1. BiOS Hot Topics: Changing of the Guard

      BiOS Hot Topics: Changing of the Guard

      The near-capacity crowd at their ultimate session this week broke into applause as Rox Anderson opened with "This is the largest meeting in the world for biomedical optics, and that's because of you!" He added that the reason BiOS has grown so popular is the diversity of the intellect and specialties that are featured in the symposium, such as those involved in medicine, bioscience, and physics. James Fujimoto introduced the new BiOS co-chairs, Jennifer Barton of the University of Arizona and Wolfgang Drexler of the University of Vienna. Touching on the impressive backgrounds of each, Fujimoto noted, "we know ...

      Read Full Article
    2. Computationally effective 2D and 3D fast phase unwrapping algorithms and their applications to Doppler optical coherence tomography

      Computationally effective 2D and 3D fast phase unwrapping algorithms and their applications to Doppler optical coherence tomography

      We propose a simplification for a robust and easy to implement fast phase unwrapping (FPU) algorithm that is used to solve the phase wrapping problem encountered in various fields of optical imaging and metrology. We show that the number of necessary computations using the algorithm can be reduced compared to its original version. FPU can be easily extended from two to three spatial dimensions. We demonstrate the applicability of the two- and three-dimensional FPU algorithm for Doppler optical coherence tomography (DOCT) in numerical simulations, and in the imaging of a flow phantom and blood flow in the human retina in ...

      Read Full Article
    3. Quantitative nontumorous and tumorous human brain tissue assessment using microstructural co- and cross-polarized optical coherence tomography

      Quantitative nontumorous and tumorous human brain tissue assessment using microstructural co- and cross-polarized optical coherence tomography

      Optical coherence tomography (OCT) is a promising method for detecting cancer margins during tumor resection. This study focused on differentiating tumorous from nontumorous tissues in human brain tissues using cross-polarization OCT (CP OCT). The study was performed on fresh ex vivo human brain tissues from 30 patients with high- and low-grade gliomas. Different tissue types that neurosurgeons should clearly distinguish during surgery, such as the cortex, white matter, necrosis and tumorous tissue, were separately analyzed. Based on volumetric CP OCT data, tumorous and normal brain tissue were differentiated using two optical coefficients — attenuation and forward cross-scattering. Compared with white matter ...

      Read Full Article
    4. Optical coherence tomography-guided laser marking with tethered capsule endomicroscopy in unsedated patients

      Optical coherence tomography-guided laser marking with tethered capsule endomicroscopy in unsedated patients

      Tethered capsule endomicroscopy (TCE) is an emerging screening technology that comprehensively obtains microstructural OCT images of the gastrointestinal (GI) tract in unsedated patients. To advance clinical adoption of this imaging technique, it will be important to validate TCE images with co-localized histology, the current diagnostic gold standard. One method for co-localizing OCT images with histology is image-targeted laser marking, which has previously been implemented using a driveshaft-based, balloon OCT catheter, deployed during endoscopy. In this paper, we present a TCE device that scans and targets the imaging beam using a low-cost stepper motor that is integrated inside the capsule. In ...

      Read Full Article
    5. System Engineer Opening at Heidelberg Engineering in Lübeck Germany

      System Engineer Opening at Heidelberg Engineering in Lübeck Germany

      We are looking for In order to support our development department in Lübeck, we are looking for a professionally and personally convincing personality. We offer you an exciting and responsible position in a fast-growing company. Our Lübeck site specialises in OCT technology and systems integration. With your high understanding of systems, you will accompany a project from the initial conception, through the definition of the architecture, the construction of prototypes to testing and handover to production. Your responsibilities System development from the basic concept to production Evaluation of new technological possibilities Definition and elaboration of the system architecture ...

      Read Full Article
    6. Postdoctoral Research Fellowships in Optical Coherence Tomography at The Tearney Lab at the Wellman Center for Photomedicine at the Massachusetts General Hospital Boston, MA USA

      Postdoctoral Research Fellowships in Optical Coherence Tomography at The Tearney Lab at the Wellman Center for Photomedicine at the Massachusetts General Hospital Boston, MA USA

      A Postdoctoral research fellowship in the area of optical coherence tomography (OCT) is available in the Tearney Lab at the Massachusetts General Hospital (MGH) in the Wellman Center for Photomedicine. This appointment will be made at the rank of postdoctoral fellow or instructor at Harvard Medical School, commensurate with the applicant’s experience. MGH’s role as a leading teaching affiliate of Harvard Medical School and close ties to Harvard University and MIT provide an outstanding environment for developing and translating new OCT technologies with applications in basic and clinical research. The fellowship will focus on high resolution OCT imaging ...

      Read Full Article
    7. Synthetic subaperture-based angle-independent Doppler flow measurements using single-beam line field optical coherence tomography in vivo

      Synthetic subaperture-based angle-independent Doppler flow measurements using single-beam line field optical coherence tomography in vivo

      We demonstrate a synthetic subaperture-based angle-independent Doppler flow calculation, using a line field spectral domain optical coherence tomography system. The high speed of the system features a high phase stability over the volume, which is necessary to apply synthetic subapertures in the aperture plane. Thus, the flow component for each subaperture can be reconstructed in postprocessing. Capillary phantom and in vivo retinal imaging experiments were performed to validate and demonstrate angle-independent Doppler flow calculation

      Read Full Article
    8. SPECTRALIS OCT2 Module Improves Speed and Efficiency on the International Space Station

      SPECTRALIS OCT2 Module Improves Speed and Efficiency on the International Space Station

      Research on the effects of microgravity on vision continues with the SPECTRALIS multi-modal imaging platform. Heidelberg Engineering, a privately-held imaging and healthcare IT technologies company focused on ophthalmic diagnostic solutions that empower clinicians to improve patient care, announced that its SPECTRALIS imaging platform with the company’s next-generation OCT2 Module has been successfully installed at the International Space Station (ISS) and is now fully operational. NASA launched the SPECTRALIS with OCT2 Module to the ISS aboard the Antares 230 Cygnus CRS OA-9, also known as Orbital Sciences CRS Flight 9E, from Wallops Island, Virginia, last May. The new imaging platform ...

      Read Full Article
    9. Toward a multimodal fusion of layered cultural object images: complementarity of optical coherence tomography and terahertz time-domain imaging in the heritage field

      Toward a multimodal fusion of layered cultural object images: complementarity of optical coherence tomography and terahertz time-domain imaging in the heritage field

      Terahertz time-domain imaging (THz-TDI) and spectral-domain optical coherence tomography (SD-OCT) are two techniques capable of providing 3D datasets from which depth profiles and cross-sectional images of an object can be derived. They are novel photonics technologies of particular relevance to the field of heritage science, for which the comprehension of the stratigraphic structure of a cultural heritage object may help in the understanding of its artistic technology and state of preservation. The differences in imaging depth, field of view, and axial/lateral resolutions of the two imaging techniques provide different but complementary information of the same scene. Through the use ...

      Read Full Article
    1-9 of 9
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Popular Articles