Sökning: "treatment planning"

Visar resultat 6 - 10 av 363 avhandlingar innehållade orden treatment planning.

  1. 6. Beam Modelling for Treatment Planning of Scanned Proton Beams

    Författare :Peter Kimstrand; Bengt Glimelius; Erik Traneus; Nina Tilly; Anders Ahnesjö; Thomas Bortfeld; Uppsala universitet; []
    Nyckelord :Radiation sciences; proton therapy; treatment planning; beam modelling; dose calculation; Monte Carlo; Strålningsvetenskap;

    Sammanfattning : Scanned proton beams offer the possibility to take full advantage of the dose deposition properties of proton beams, i.e. the limited range and sharp peak at the end of the range, the Bragg peak. LÄS MER

  3. 7. Monte Carlo particle transport codes for ion beam therapy treatment planning : Validation, development and applications

    Författare :Till Tobias Böhlen; Irena Gudowska; Oliver Jäkel; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Monte Carlo; ion beam therapy; treatment planning; cancer therapy; microdosimetry; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : External radiotherapy with proton and ion beams needs accurate tools for the dosimetric characterization of treatment fields. Monte Carlo (MC) particle transport codes, such as FLUKA and GEANT4, can be a valuable method to increase accuracy of dose calculations and to support various aspects of ion beam therapy (IBT), such as treatment planning and monitoring. LÄS MER

  4. 8. Automated radiation therapy treatment planning by increased accuracy of optimization tools

    Författare :Lovisa Engberg; Anders Forsgren; Marina A. Epelman; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optimization; intensity-modulated radiation therapy; radiation therapy treatment planning; automated radiation therapy treatment planning; interior-point methods; Optimering; intensitetsmodulerad strålbehandling; dosplanering; automatiserad dosplanering; inrepunktsmetoder; Mathematics; Matematik;

    Sammanfattning : Every radiation therapy treatment is preceded by a treatment planning phase. In this phase, a treatment plan that specifies exactly how to irradiate the patient is designed by the treatment planner. LÄS MER

  5. 9. Resource recovery from wastewater treatment: challenges, opportunities and guidance for planning and implementation

    Författare :Mariana Cardoso Chrispim; Miklas Scholz; Marcelo Antunes Nolasco; Jennifer R. McConville; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Circular economy; Resource recovery; Sewage; Planning; Water; Nutrient; Biogas; Developing countries; Urban areas;

    Sammanfattning : Considering the current resources scarcity, Wastewater Treatment Plants (WWTP) should be adapted to become more sustainable. For example, it is possible to recover resources present in municipal wastewater. LÄS MER

  7. 10. Development and application of composite energy deposition kernels for photon therapy planning

    Författare :Anders Eklöf; Simo Hyödynmaa; Stockholms universitet; []
    Nyckelord :Energy deposition kernels; volume overlap algorithm; radiotherapy planning; photon pencil beams; treatment optimization; biological treatment objectives; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : In recent years, the use of optimization algorithms in radiation therapy planning has increased dramatically. All optimization algorithms as well as most modern implementations of conventional therapy planning, use energy deposition kernels as a fundamental part of the calculations. LÄS MER