Sökning: "Medical microwave tomography"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Medical microwave tomography.

  1. 1. Experimental Evaluation of a Microwave Tomography System for Breast Cancer Detection

    Författare :Tomas Rydholm; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tomography; microwave imaging; phantom; breast cancer;

    Sammanfattning : Microwave tomography is a potential candidate for future breast-cancer screening or diagnosis. Contrary to x-rays, microwaves are non-ionizing and therefore not a health risk by their own. The examination procedure would also be more comfortable for the patient compared to conventional mammography since no compression of the breast is needed. LÄS MER

  3. 2. A Discrete Dipole Approximation Forward Solver for Microwave Breast Imaging

    Författare :Samar Hosseinzadegan; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave imaging; forward problem; breast cancer; tomography; computation time.;

    Sammanfattning : Breast cancer has the highest incidence rate of cancers in women worldwide. Early detection results in a higher survival rate. Drawbacks in conventional imaging modalities, including painful exams, have limited periodic breast screening. LÄS MER

  4. 3. Development of Feedback Microwave Thermotherapy in Symptomatic Benign Prostatic Hyperplasia

    Författare :Sonny Schelin; Urologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nephrology; Urologi; nefrologi; Urology; PET; Schelin Catheter; epinephrine; local anaesthetics; microwave thermotherapy; intraprostatic blood flow; PLFT; Benign Prostatic Hyperplasia; intraprostatic temperature; CoreTherm;

    Sammanfattning : Abstract: The purpose of this thesis was to evaluate ProstaLund Feedback Treatment® (PLFT®) and the CoreTherm® device with regard to biophysics, mechanisms of action, treatment indications, additional techniques, efficacy and safety in the treatment of patients with benign prostatic hyperplasia (BPH). The application of two biophysical equations in the PLFT software is explained. LÄS MER

  5. 4. Surface Modified Capillaries in Capillary Electrophoresis Coupled to Mass Spectrometry : Method Development and Exploration of the Potential of Capillary Electrophoresis as a Proteomic Tool

    Författare :Aida Zuberovic; Jonas Bergquist; Ziad El Rassi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Topology optimization; Design optimization; Material distribution; Wave propagation problems; Inverse problems; Acoustic devices; Medical microwave tomography; High performance computing; Analytical chemistry; Analytisk kemi;

    Sammanfattning : The increased knowledge about the complexity of the physiological processes increases the demand on the analytical techniques employed to explore them. A comprehensive analysis of the entire sample content is today the most common approach to investigate the molecular interplay behind a physiological deviation. LÄS MER

  7. 5. Feedback thermotherapy for benign prostatic enlargement : A clinical and methodological evaluation

    Författare :Lennart Wagrell; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; benign prostatic hyperplasia; transurethral microwave thermotherapy; feed-back thermotherapy; intraprostatic blood-flow; intraprostatic temperature; bladderneck; PET; Kirurgi; Surgery; Kirurgi; kirurgi; särskilt urologi; Urology;

    Sammanfattning : The purpose of this thesis was to evaluate a new treatment strategy for symptomatic benign prostatic enlargement.The transurethral thermotherapy (TUMT) antenna design was studied. The design influences the heating-profile significantly and the absorbed energy in a target volume were only about 13-20% of the energy delivered. LÄS MER