Sökning: "optical coherence tomography"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden optical coherence tomography.

  1. 1. Optical Coherence Tomography for Dermatological Applications

    Detta är en avhandling från Division of Atomic Physics, Department of Physics, Faculty of Engineering, LTH, Lund University

    Författare :Jakob Borup Thomsen; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; medical imaging; skin cancer diagnostics; optical imaging; blood flow; treatment monitoring;

    Sammanfattning : Optical coherence tomography (OCT) is a non-invasive optical imaging technique providing approximately 10 micrometer resolution of tissue in vivo. Within ophthalmology, OCT has already proven its value and is routinely used for diagnosing retinal diseases. LÄS MER

  2. 2. Assessment of optical coherence tomography for metrology applications in high-scattering ceramic materials

    Detta är en avhandling från Division of Atomic Physics, Department of Physics, Faculty of Engineering, LTH, Lund University

    Författare :Rong Su; Lars Mattsson; Hjalmer Granberg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metrology; optical coherence tomography; alumina ceramics; nondestructive testing; imaging through turbid media; light scattering; image processing; numerical approximation and analysis; Monte Carlo method;

    Sammanfattning : Large-scale and cost-effective manufacturing of ceramic micro devices based on tape stacking requires the development of inspection systems to perform high-resolution in-process quality control of embedded manufactured cavities, metal structures and defects.In this work, alumina ceramic samples are evaluated by optical coherence tomography (OCT) operating at 1. LÄS MER

  3. 3. Electrophysiology and optical coherence tomography in acquired and hereditary retinal disorders

    Detta är en avhandling från Department of Ophthalmology, Lund University

    Författare :Patrik Schatz; [2006]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal degeneration; multifocal ERG; Oftalmologi; Ophtalmology; OCT;

    Sammanfattning : In this thesis, retinal function in general, as well as central retinal function and structure are described in selected forms of acquired and hereditary retinal disorders, in order to improve our understanding of underlying pathogenic mechanisms. This comparison has been made possible during the last years, through the relatively recent development of multifocal ERG (mfERG) and optical coherence tomography (OCT) for the analysis of central retinal function and structure, respectively. LÄS MER

  4. 4. Retinal thickness measured with optical coherence tomography in patients with multiple sclerosis

    Detta är en avhandling från Stockholm : Karolinska Institutet, Dept of Clinical Neuroscience

    Författare :Ulrika Birkeldh; Karolinska Institutet.; Karolinska Institutet.; [2018]

    Sammanfattning : The retina offers a unique window to the brain with its unmyelinated axons that converge to the optic nerve. Optical coherence tomography (OCT) is a well-established and non-invasive imaging technique in the ophthalmology field. The retinal layers can be imaged directly, and OCT is often described as an optical biopsy of retinal tissue. LÄS MER

  5. 5. Morphometry of the Optic Nerve Head as a Diagnostic Tool for Glaucoma

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Camilla Sandberg Melin; Per Söderberg; Boel Bengtsson; [2019]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; optic nerve head; ONH; nerve fibers; glaucoma; optical coherence tomography; OCT; Pigment epithelium central limit-inner limit of the retina minimal distance; PIMD; PIMD-2π; Segmental PIMD-2π; confocal scanning laser tomography; HRT; NRA; variation; variability; variance; loss rate; follow-up.;

    Sammanfattning : Glaucoma is a chronic optic nerve head (ONH) disease. Gradual retinal ganglion cell and nerve fiber loss lead to morphological ONH change and visual field defects. Initial loss is often focal. Rate of progression and life expectancy guide treatment. LÄS MER