Essays about: "dose calculation algorithms"

Showing result 1 - 5 of 8 essays containing the words dose calculation algorithms.

1. 1. Development of a new SBRT dose planning strategy for thoracic tumours in RayStation

   University essay from Umeå universitet/Radiofysik

   Author : Olof Westman; [2023]
   Keywords : radiotherapy sbrt lung robust; radioterapi;

   Abstract : 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. READ MORE

3. 2. Scenario Dose Calculation for Robust Optimization in Proton Therapy Treatment Planning

   University essay from Lunds universitet/Matematik LTH

   Author : Johan Sundström; [2021]
   Keywords : cancer; radiation therapy; proton therapy; treatment planning; robust optimization; dose calculation algorithms; scenarios; patient setup; range error; organ motion; pencil beam scanning; computational efficiency; range-corrected dose-mapping; Mathematics and Statistics;

   Abstract : 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. READ MORE

4. 3. Investigation of a Collapsed Cone Superposition Algorithm for dosimetry in brachytherapy

   University essay from Stockholms universitet/Fysikum

   Author : Freja Alpsten; [2021]
   Keywords : Brachytherapy; Collapsed Cone; Model-Based Dose Calculation Algorithms; Radiotherapy;

   Abstract : 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. READ MORE

5. 4. Validation of Ion Therepy Dose Calculation Algorithms by Monte Carlo

   University essay from KTH/Fysik

   Author : Staffan Engdahl; [2015]
   Keywords : ;

   Abstract : .... READ MORE

6. 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

   University essay from Institutionen för medicinsk teknik; Tekniska högskolan

   Author : Robin Westin; [2013]
   Keywords : DECT; Iterative reconstruction; Tissue decomposition; Numerical stability; Uncertainty propagation;

   Abstract : 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. READ MORE