Sökning: "Intensity-Modulated"
Visar resultat 1 - 5 av 37 avhandlingar innehållade ordet Intensity-Modulated.
1. Energy and intensity modulated radiation therapy with electrons
Sammanfattning : In recent years intensity modulated radiation therapy with photons (xIMRT) has gained attention due to its ability to reduce the dose in the tissues close to the tumour volume. However, this technique also results in a large low dose volume. LÄS MER
2. Multicriteria optimization for managing tradeoffs in radiation therapy treatment planning
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
3. Robust optimization of radiation therapy accounting for geometric uncertainty
Sammanfattning : Geometric errors may compromise the quality of radiation therapy treatments. Optimization methods that account for errors can reduce their effects.The first paper of this thesis introduces minimax optimization to account for systematic range and setup errors in intensity-modulated proton therapy. LÄS MER
4. Effects on quality of life of new radiotherapy techniques in treatment of head and neck cancer
Sammanfattning : .... LÄS MER
5. Theory and Applications of Coupling Based Intensity Modulated Fibre-Optic Sensors
Sammanfattning : Optical fibre sensors can be used to measure a wide variety of properties. In some cases they have replaced conventional electronic sensors due to their possibility of performing measurements in environments suffering from electromagnetic disturbance, or in harsh environments where electronics cannot survive. LÄS MER