Sökning: "intensity-modulated proton therapy"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden intensity-modulated proton therapy.

  1. 1. Multicriteria optimization for managing tradeoffs in radiation therapy treatment planning

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Rasmus Bokrantz; Anders Forsgren; Karl-Heinz Küfer; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Optimization; multicriteria optimization; robust optimization; Pareto optimality; Pareto surface approximation; Pareto surface navigation; intensity-modulated radiation therapy; volumetric-modulated arc therapy; intensity-modulated proton therapy; Optimering; flermålsoptimering; robust optimering; Paretooptimalitet; Paretofrontsapproximation; Paretofrontsnavigering; intensitetsmodulerad strålterapi; rotationsterapi; intensitetsmodulerad protonterapi;

    Sammanfattning : Treatment planning for radiation therapy inherently involves tradeoffs, such as between tumor control and normal tissue sparing, between time-efficiency and dose quality, and between nominal plan quality and robustness. The purpose of this thesis is to develop methods that can facilitate decision making related to such tradeoffs. LÄS MER

  2. 2. Radiotherapy Gel Dosimetry: Development and Application of Normoxic Polymer Gels

    Detta är en avhandling från Helen Gustavsson, Department of Medical Radiation Physics, Malmö University Hospital, SE-205 02 Malmö, Sweden

    Författare :Helen Gustafsson; [2004]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical physics; radiology; tomography; medical instrumentation; Klinisk fysiologi; tomografi; medicinsk instrumentering; Radiofarmaceutisk teknik; Radiopharmaceutical technology; proton; LET; FT Raman spectroscopy; MRI; normoxic gel; IMRT; 3D verification; polymer gel dosimetry; radiologi;

    Sammanfattning : In many radiotherapy applications, true three-dimensional dosimetry with good spatial resolution that can be achieved in a single measurement would be of great value. Polymer gel dosimetry fulfils many of the demands on such a system. In this study, methods to facilitate the implementation of gel dosimetry have been investigated. LÄS MER

  3. 3. Out-of-field doses from proton therapy and doses from CBCT imaging Risk of radiation-induced second cancer from modern radiotherapy

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Oscar Ardenfors; Irena Gudowska; Alexandru Dasu; Cathrine Jonsson; Pawel Olko; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : The use of ionizing radiation for treatment of cancer diseases is continuously increasing as patient survival is improving and new treatment techniques are emerging. While this development is beneficial for curing primary tumors, concerns have been raised regarding the unwanted dose contribution to healthy tissues of patients and the associated risk of radiation-induced second cancer (RISC). LÄS MER

  4. 4. Nasopharyngeal carcinoma: past, present and future directions

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Zahra Taheri-Kadkhoda; Göteborgs universitet.; Gothenburg University.; [2007]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Nasopharyngeal carcinoma; radiotherapy; side effects; 3DCRT; Intracavitary brachytherapy; IMRT; IMPT; LMP1; EGFR.; radiotherapy; side effects; 3DCRT; Intracavitary brachytherapy; IMRT; IMPT; LMP1; EGFR;

    Sammanfattning : Nasopharyngeal carcinoma (NPC) is a rare disease in Sweden. The purpose of this thesis was to investigate the clinicopathological manifestations of the disease and its treatment outcomes in a cohort of Swedish NPC patients to identify key features for future improvements in patient care. LÄS MER

  5. 5. Secondary doses to healthy tissues from radiotherapy and modern imaging techniques

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Oscar Ardenfors; Irena Gudowska; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The use of ionizing radiation for treatment of cancer diseases is continuously increasing giving rise to several new questions and concerns. One of the most important aspects of this is the associated dose imparted to healthy tissues. This unwanted dose contribution is a result of both radiotherapy procedures and diagnostic imaging. LÄS MER