Optical Coherence Tomography Systems by Novacam

Novacam dOCTor Optical Coherence Tomography systems, working at 1300 nm wavelength, are available in both time-domain (TD-OCT) and Fourier-domain laser swept source (SS-OCT) versions, each offering particular advantages. The high speed (30 kHz) SS-OCT system is more suitable for …

(Read Full Article)

Optical coherence microscopy system having a filter for suppressing a specular light contribution

The invention relates to an optical coherence microscopy system for fast, phase resolved imaging by means of optical coherence microscopy with decoupled illumination and detection apertures, producing a dark-field effect with an enhanced optical contrast. The setup uses a light

(Read Full Article)

Optical coherence tomography for biological imaging

Described herein are catheters for use with Optical Coherence Tomography (OCT) that include an optical fiber core having a first refractive index and an interface medium having a second refractive index, where the first and second refractive indexes are mismatched …

(Read Full Article)

Design and Implementation of Full Field-Optical Coherence Tomography on an Olympus IX73 Microscope (Thesis)

Optical Coherence Tomography (OCT) has established itself as an important imaging technology for biomedical and industrial applications. In this thesis, we describe the design and implementation of a novel Full-Field OCT optical module that is specifically designed to fit inside …

(Read Full Article)

Retinal Changes in Different Grades of Retinal Artery Occlusion: An Optical Coherence Tomography Study

Purpose : To investigate layer-by-layer changes in retinal thickness and reflectivity regarding the severity grade of acute retinal artery occlusion (RAO) using spectral-domain optical coherence tomography (SD-OCT). Methods : This study is a retrospective, observational case-control series that took place …

(Read Full Article)

Visibility of Fiducial Markers used for Image-Guided Radiation Therapy on Optical Coherence Tomography for Registration with CT: an Esophageal Phantom Study

Purpose Optical coherence tomography (OCT) is of interest to visualize microscopic esophageal tumor extensions to improve tumor delineation for radiation therapy (RT) planning. Fiducial marker placement is a common method to ensure target localization during planning and treatment. Visualization of …

(Read Full Article)

Coronary optical coherence tomography-derived virtual fractional flow reserve (FFR): anatomy and physiology all-in-one | European Heart Journal

Most invasive coronary imaging modalities only provide anatomical information from which physiologic significance is inferred. Fractional flow reserve (FFR) and other physiologic indices of lesion severity are more reliable methods to identify physiologically significant lesions. Currently, accomplishing both anatomic and …

(Read Full Article)

Evaluation of optical coherence tomographic data prior to segmentation

An efficient method of evaluating the level of contrast of an OCT dataset is presented. The method develops a metric to segregate useful and not-so-useful data in one or more OCT B-scans, in order to reduce spurious subsequent analyses of …

(Read Full Article)

Postdoctoral Research Fellowship in Biomedical Optics at CNRS/Strasbourg University

Applicants are invited to apply for a postdoctoral researcher position in optical imaging systems for biomedical applications. The project involves the development of the novel catheter-based OCT imaging system to enhance the robotized interventional endoscope for diagnosing and treatment of …

(Read Full Article)

Flexible needle with integrated optical coherence tomography probe for imaging during transbronchial tissue aspiration

Transbronchial needle aspiration (TBNA) of small lesions or lymph nodes in the lung may result in nondiagnostic tissue samples. We demonstrate the integration of an optical coherence tomography (OCT) probe into a 19-gauge flexible needle for lung tissue aspiration. This …

(Read Full Article)

Engaging OCTA in glaucoma imaging

Ophthalmologists could have a new tool to assess progression in glaucoma by measuring vascular damage in the retina and optical nerve head. Optical coherence tomography angiography (OCTA) can directly measure retinal vessel densities in a non-invasive, reliable, and reproducible manner, …

(Read Full Article)