Sökning: "High intensity focused ultrasound"

Hittade 4 avhandlingar innehållade orden High intensity focused ultrasound.

  1. 1. Effects of high intensity focused ultrasound on the intervertebral disc

    Författare :Johan K Persson; Lund Ortopedi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medical instrumentation; tomography; radiology; Clinical physics; Biofysik; Biophysics; Thermal therapy; Disc herniation; Intervertebral disc; High intensity focused ultrasound; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

    Sammanfattning : The purpose of this study was to study and try to optimise high intensity focused ultrasound treatment of the intervertebral disc. We demonstrated that it was possible to heat intervertebral discs with HIFU delivered by 50 or 5 mm diameter ultrasound transducers. LÄS MER

  3. 2. Ultrasound, ions and combined modalities for increased local tumour cell death in radiation therapy

    Författare :Annica Jernberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Focused ultrasound; ionising radiation; high-LET; cisplatin; combined modalities; cell survival; cellular effects;

    Sammanfattning : In this thesis, new approaches to improve tumour therapy for patients with inoperable, radiation- and chemoresistant tumours were in focus. Ultrasound and ionising radiation, especially accelerated ions, are both non-invasive agents that have high precision and deep penetration in tissues, enabling increased dose to the tumour while sparing the normal tissues. LÄS MER

  4. 3. Therapeutic applications of acoustic and electromagnetic energy

    Författare :Vilhelm Ekstrand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : This thesis focuses on techniques based on electromagnetic and acoustic energy for treatment of a variety of diseases, including development of new techniques as well as improvement and evaluation of existing techniques. The subjects treated are: Provocation of heat generated thrombi in pigs. LÄS MER

  5. 4. Efficient Quantum Memories Based on Spectral Engineering of Rare-Earth-Ion-Doped Solids

    Författare :Mahmood Sabooni; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2013:Sabooni;

    Sammanfattning : The main aim of the present thesis is to demonstrate the efficient quantum memories for light employing coherent processes in rare-earth-ion-doped crystals. Rare-earth (RE) ions between lanthanum, with atomic number 57, and lutetium, with atomic number 71, have a partly filled 4f shell, which is spatially inside the full shells 5s, 5p, and 6s. LÄS MER