Sökning: "laser doppler imager"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden laser doppler imager.

  1. 1. Laser Doppler perfusion imaging : methodology and skin applications

    Författare :Karin Wårdell; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Over the last decade a number of emerging technologies have become available for the non-invasive study of skin anatomy and physiology. In this thesis, a method for mapping tissue perfusion based on the laser Doppler technique is presented together with some of the associated experimental and clinical applications. LÄS MER

  3. 2. Characterisation and treatment of patients with port wine stains with special reference to the emotional impact

    Författare :Agneta Troilius; Dermatologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; capillary malformation; PWS; pulsed dye laser; laser doppler imager; ultrasound; psychosocial impact; depth; reflectance spectrophotometry; Dermatologi; venereologi; venereology; Dermatology;

    Sammanfattning : This thesis covers 12 years of experience in treating patients with congenital capillary malformations, so called port wine stains (PWS). The wide variation in treatment response to laser therapy has developed a profound need for the development of objective devises to measure treatment outcome, so that the maximum effectiveness of therapy can be achieved without unnecessary treatments. LÄS MER

  4. 3. Laser Doppler imaging of patch tests : a methodological and comparative study with visual assessments

    Författare :Bolli Bjarnason; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :skin perfusion; laser Doppler perfusion imaging; laser Doppler perfusion scanning; contact dermatitis; patch test technique; test procedure; test method; test system; patch test optimization; serial dilution; dose; exposure time; application time; reading time; immunosuppression; pigmented patch test materials; edge effect; nickel; isothiazolinones; corticosteroids; budesonide; neomycin; balsam of Peru;

    Sammanfattning : Optimal test technique for most allergens is lacking. Despite technological progress in the 20th century, patch tests are habitually still assessed visually. Morphology of definite positive patch tests is unknown, reflected by various reading scales available and false-positive tests. LÄS MER

  5. 4. Intrinsic and extrinsic protection of the brain

    Författare :Peter Kimme; Olof Grände; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The brain is a complex organ and critically dependent on its oxygen metabolism and blood supply. The purpose of the present study was twofold: firstly to design, evaluate, and adopt a physiologically stable experimental model for repeated measurements of cerebral cortical microvascular perfusion by a new laser Doppler technique (experimental part (I) - intrinsic model). LÄS MER

  7. 5. Blood Flow Dynamics in Burns

    Författare :Robin Mirdell; Erik Tesselaar; Simon Farnebo; Folke Sjöberg; Paul Van Zuijlen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Objectives:Burns of intermediate thickness are hard to evaluate clinically. This often leads to unnecessary delays of up to 14 days before a surgical decision can be made. To counter this, several objective methods have been developed to determine the healing potential of the wound. LÄS MER