Avancerad sökning
Visar resultat 1 - 5 av 8 uppsatser som matchar ovanstående sökkriterier.
1. Development of a new SBRT dose planning strategy for thoracic tumours in RayStation
Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/RadiofysikSammanfattning : Umeå University Hospital has acquired a new treatment planning system, RayStation, for radiotherapy. It has a different set of dose calculation algorithms that require new planning strategies for stereotactic lung cancer treatments. LÄS MER
2. Scenario Dose Calculation for Robust Optimization in Proton Therapy Treatment Planning
Master-uppsats, Lunds universitet/Matematik LTHSammanfattning : Robust optimization plays a vital role in proton therapy treatment planning. A monoenergetic beam of protons has a finite range and delivers most of its dose at some specific depth in the patient. This allows the design of treatments that mainly damage the tumor and not any surrounding tissue. LÄS MER
3. Investigation of a Collapsed Cone Superposition Algorithm for dosimetry in brachytherapy
Master-uppsats, Stockholms universitet/FysikumSammanfattning : Background & Purpose: The current standard dosimetry in brachytherapy treatment planning, the TG-43 formalism, ignore the presence of non-water media and finite patient dimensions. This can cause clinically relevant errors in dose estimates. LÄS MER
4. Validation of Ion Therepy Dose Calculation Algorithms by Monte Carlo
Master-uppsats, KTH/FysikSammanfattning : .... LÄS MER
5. Three material decomposition in dual energy CT for brachytherapy using the iterative image reconstruction algorithm DIRA : Performance of the method for an anthropomorphic phantom
Master-uppsats, Institutionen för medicinsk teknik; Tekniska högskolanSammanfattning : Brachytherapy is radiation therapy performed by placing a radiation source near or inside a tumor. Difference between the current water-based brachytherapy dose formalism (TG-43) and new model based dose calculation algorithms (MBSCAs) can differ by more than a factor of 10 in the calculated doses. LÄS MER