Sökning: "Skin impedance"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden Skin impedance.

  1. 1. Near infrared and skin impedance spectroscopic in vivo measurements on human skin : development of a diagnostic tool for skin cancer

    Författare :Ida Bodén; Peter Naredi; Britta Lindholm-Sethson; Paul Geladi; Bo Karlberg; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Combined probe head; Malignant melanoma; diagnosis; NIR; Skin impedance; PCA; PLS-DA; kirurgi; Surgery;

    Sammanfattning : Every year approximately 2800 Swedes are diagnosed with malignant melanoma, the form of cancer that is most rapidly increasing in incidence in the Western world. The earlier we can identify and diagnose a malignant melanoma, the better is the prognosis. LÄS MER

  3. 2. Vibration exposure of the glabrous skin of the human hand

    Författare :Ronnie Lundström; Ludwik Liszka; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vibration; hand; skin; mechanical impedance; mechanoreceptors; tactile perception; high-frequency;

    Sammanfattning : An occupational exposure to hand-arm vibration can cause a complex of neurological, vascular and musculo-skeletal disturbances, known as the 'vibration syndrome'. However, the underlying pathophysiological mechanisms are not at all clear. LÄS MER

  4. 3. Skin cancer as seen by electrical impedance

    Författare :Peter Åberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Electrical impedance; skin cancer; pattern recognition; screening;

    Sammanfattning : This thesis describes the relation between skin cancer and electrical impedance. On the cellular level, electrical impedance measured at clinically relevant frequencies is affected by e.g. LÄS MER

  5. 4. Electrical impedance of human skin and tissue alterations : mathematical modeling and measurements

    Författare :Ulrik Birgersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Electrical impedance;

    Sammanfattning : The overall aim of the studies in this thesis is twofold. One is oriented towards calibrating a classifier in differentiating between malignant melanoma and benign nevi of the skin. LÄS MER

  7. 5. Electrical impedance related to experimental induced changes of human skin and oral mucosa

    Författare :Ingrid Nicander; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :bioengineering; dielectric properties; electrical impedance; irritation; non-invasive; oral mucosa; skin; skin barrier; stratum comeum; stratum corneum lipids;

    Sammanfattning : There is a need for an objective and non-invasive method for assessing reactions in the human skin and oral mucosa, particularly for weak reactions. During the past few decades, several methods of measuring irritant responses have indeed been developed for the skin and to some extent also for the oral mucosa. LÄS MER