Sökning: "treatment planning"

Visar resultat 1 - 5 av 313 avhandlingar innehållade orden treatment planning.

  1. 1. Radiation therapy of upper gastrointestinal cancers with scanned proton beams : A treatment planning study

    Författare :Gracinda Mondlane; Albert Siegbahn; Michael Gubanski; Iuliana Toma-Dasu; Crister Ceberg; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Treatment planning; gastric cancer; liver metastases; photon beam therapy; proton beam therapy; dosimetric comparison; normal tissue complication probability; risk of radiation-induced secondary cancer; patient selection; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : Proton beam therapy (PBT), using scanned beams, is an emerging modality used for the treatment of cancer. The clinical advantages of PBT, compared to commonly used photon beam therapy, have been demonstrated in different studies. LÄS MER

  2. 2. Paediatric radiotherapy. Treatment Planning Aspects

    Författare :Ingrid Kristensen; Tumörmikromiljö; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; paediatric radiotherapy; telemedicine; inter-observer variation; target delineation; treatment planning; proton therapy;

    Sammanfattning : .... LÄS MER

  3. 3. Beyond treatment? : widening the approach to alcohol problems and solutions

    Författare :Jan Blomqvist; Douglas Cameron; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social work; Socialt arbete; socialt arbete; Social Work;

    Sammanfattning : The dissertation includes four different studies which, from different points of departure, aim to illuminate problems and prospects of social work with alcohol problems in contemporary Sweden.Paper 1 analyses the historical succession of predominant public images of, and societal responses to, alcohol problems in Sweden during the past century. LÄS MER

  4. 4. Probabilistic treatment planning based on dose coverage : How to quantify and minimize the effects of geometric uncertainties in radiotherapy

    Författare :David Tilly; Anders Ahnesjö; Erik Grusell; Uwe Oelfke; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Radiotherapy; treatment simulation; probabilistic planning; dose calculation; probabilistic optimization; statistical shape model; Medicinsk radiofysik; Medical Radiophysics;

    Sammanfattning : Traditionally, uncertainties are handled by expanding the irradiated volume to ensure target dose coverage to a certain probability. The uncertainties arise from e.g. the uncertainty in positioning of the patient at every fraction, organ motion and in defining the region of interests on the acquired images. LÄS MER

  5. 5. Comparative treatment planning in external radiotherapy of malignant tumours : Potential gains using protons

    Författare :Ulf Isacsson; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oncology; Breast cancer; comparative treatment; Ewing sarcoma; oesophageal cancer; proton therapy; radiotherapy; rectal cancer; treatment planning algorithms; Onkologi; Oncology; Onkologi; Oncology; onkologi;

    Sammanfattning : It is well known that protons have physical characteristics superior to conventional radiation qualities in external beam radiotherapy. The primary aim of this work is to determine if the physical advantages also may lead to clinical advantages. LÄS MER