1. Articles from Jonas Olsen

    1-4 of 4
    1. Optical coherence tomography quantifying photo aging: skin microvasculature depth, epidermal thickness and UV exposure

      Optical coherence tomography quantifying photo aging: skin microvasculature depth, epidermal thickness and UV exposure

      Introduction: Photo aging predominantly occurs in the face, neck and hands due to UVA and UVB irradiation. It is associated with skin cancer and histological studies indicate thinning of the epidermis and elastosis occurs. Dynamic Optical coherence tomography (D-OCT) is a non-invasive imaging tool able to visualize the epidermis and upper dermis and its blood vessels as well as to evaluate epidermal thickness (ET) and blood flow. Objective: To investigate ET and blood vessel depth using D-OCT in human subjects correlated to UV exposure. Methods: We evaluated data from 249 healthy adults, that had D-OCT-scans conducted at four different regions ...

      Read Full Article
    2. Dynamic Optical Coherence Tomography Imaging of Telangiectasia Prior to Intense Pulsed Light Treatment—An Opportunity to Target Treatment?

      Dynamic Optical Coherence Tomography Imaging of Telangiectasia Prior to Intense Pulsed Light Treatment—An Opportunity to Target Treatment?

      Background and Objectives To investigate whether optical coherence tomography (OCT) could be utilized to characterize blood flow and vessel dimensions of facial telangiectasias before and during consecutive intense pulsed light (IPL) treatment. Study Design/Materials and methods Dynamic OCT (D‐OCT) was used to image telangiectasia immediately before and after, 1–3 days after, and 1 month after IPL treatment. Measurements included vessel width and depth, blood flow, and attenuation. Vessel dimensions at baseline were verified by a blinded observer. Clinical improvement was detected as good, moderate, or none, and adverse effects were registered at 1‐month follow‐up. Results ...

      Read Full Article
    3. Optical coherence tomography of onychomycosis: proposed terminology and a suggestion of practical usage

      Optical coherence tomography of onychomycosis: proposed terminology and a suggestion of practical usage

      Onychomycosis is the most common cause of nail changes accounting for about half of all nail diseases. It is important to diagnose the fungal pathogen to prescribe adequate treatment, but as genus- and species-specific diagnostic tests can be time consuming and expensive, it is crucial to obtain representative tissue during nail scrapings. Optical coherence tomography (OCT) is a non-invasive imaging tool enabling real-time imaging of skin and tissue. Pilot studies using OCT have described morphological characteristics of onychomycosis, though diagnostic criteria of onychomycosis and other nail diseases are lacking. The aim of this study is to investigate the applicability of ...

      Read Full Article
    4. Advances in optical coherence tomography in dermatology—a review

      Advances in optical coherence tomography in dermatology—a review

      Optical coherence tomography (OCT) was introduced as an imaging system, but like ultrasonography, other measures, such as blood perfusion and polarization of light, have enabled the technology to approach clinical utility. This review aims at providing an overview of the advances in clinical research based on the improving technical aspects. OCT provides cross-sectional and en face images down to skin depths of 0.4 to 2.00 mm with optical resolution of 3 to 15  μm. Dynamic optical coherence tomography (D-OCT) enables the visualization of cutaneous microvasculature via detection of rapid changes in the interferometric signal of blood flow. Nonmelanoma ...

      Read Full Article
    1-4 of 4
  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. Topics in the News

    1. (3 articles) University of Copenhagen
    2. (1 articles) Michelson Diagnostics
    3. (1 articles) Capital Medical University
  3. Popular Articles

  4. Picture Gallery

    Advances in optical coherence tomography in dermatology—a review Optical coherence tomography of onychomycosis: proposed terminology and a suggestion of practical usage Dynamic Optical Coherence Tomography Imaging of Telangiectasia Prior to Intense Pulsed Light Treatment—An Opportunity to Target Treatment? Optical coherence tomography quantifying photo aging: skin microvasculature depth, epidermal thickness and UV exposure Trojan-Horse Diameter-Reducible Nanotheranostics for Macroscopic/Microscopic Imaging-Monitored Chemo-Antiangiogenic Therapy Thickness of retinal pigment epithelium–Bruch’s membrane complex in adult Chinese using optical coherence tomography Interocular symmetry of optical coherence tomography parameters in healthy children and adolescents Fluorescein Leakage and Optical Coherence Tomography Angiography Features of Microaneurysms in Diabetic Retinopathy Cross-free in both lateral and axial directions Fourier-domain full-field optical coherence tomography Microperimetry, Humphrey field analyzer, and optical coherence tomography in detecting glaucoma: a comparative performance study Scanning optimization of an electrothermally-actuated MEMS mirror for applications in optical coherence tomography endoscopy Near-infrared active superparamagnetic iron oxide nanoparticles for magnetomotive optical coherence tomography imaging and magnetic hyperthermia therapeutic applications