Search for dissertations about: "radiation therapy treatment planning"

Showing result 1 - 5 of 53 swedish dissertations containing the words radiation therapy treatment planning.

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

    Author : Gracinda Mondlane; Albert Siegbahn; Michael Gubanski; Iuliana Toma-Dasu; Crister Ceberg; Stockholms universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

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

    Author : Lovisa Engberg; Anders Forsgren; Marina A. Epelman; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; 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; Matematik; Mathematics;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

  4. 4. Development of optimized radiation therapy using external electron and photon beams

    Author : Mats Åsell; Henk Huizenga; Stockholms universitet; []
    Keywords : Target design; Collimator Scattered Radiation; Collimator Scatter Kernel; Treatment Planning; Radiation Therapy Optimization; Intensity Modulation; Energy Modulation; Beam Modality Combinations; medicinsk strålningsfysik; Medical Radiation Physics;

    Abstract : The development of new intensity modulated radiation therapy (IMRT) techniques and treatment optimization tools makes it desirable to further improve modulation methods by using scanned photon and electron beams. It is shown that the narrowest possible photon beams have the potential to improve the flexibility in dose delivery, speed up the dose delivery and improve the treatment outcome. READ MORE

  5. 5. Toward Robust Optimization of Adaptive Radiation Therapy

    Author : Michelle Böck; Anders Forsgren; Minsun Kim; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; optimization; adaptive radiation therapy; radiation therapy treatment planning; uncertainty; robust optimization; stochastic programming; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Abstract : Adaptive radiation therapy is an evolving cancer treatment approach which relies on adapting the treatment plan in response to patient-specific interfractional geometric variations occurring during the fractionated treatment. If those variations are not addressed through adaptive replanning, the resulting treatment quality may be compromised. READ MORE