Essays about: "Stereotactic"

Showing result 1 - 5 of 24 essays containing the word Stereotactic.

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. Polymer gel dosimetry with MRI-readout for 3D dose verification - detector characteristics and clinical applications

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Thi Guldhill; [2023]
   Keywords : Medicine and Health Sciences;

   Abstract : Background & Purpose: Radiation therapy is an essential treatment for cancer patients with the ultimate goal to deliver radiation doses to the tumour with precision while minimizing exposure to surrounding healthy tissues. Treatment verification is crucial to ensure the accuracy of radiation delivery, for instance by measuring the radiation dose distribution. READ MORE

4. 3. Correlation between Surface and Tumour Motion in Lung Cancer - including Deep Learning Perspectives

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Caisa Kjellström; [2023]
   Keywords : Medicine and Health Sciences;

   Abstract : Purpose: The purpose of this master thesis was to retrospectively investigate correlation between surface and tumour motion in lung cancer patients, alongside deep learning applications of the results. Additional correlations such as age, tumour volume and anatomical placement of the tumour were also investigated. READ MORE

5. 4. Evaluation of a Novel Reconstruction Framework for Gamma Knife Cone-Beam CT - The Impact of Scatter Correction and Noise Filtering on Image Quality and Co-registration Accuracy

   University essay from KTH/Fysik

   Author : Ida Hägnestrand; [2023]
   Keywords : Gamma Knife; Cone-beam computed tomography; Image quality; Image reconstruction; Co-registration; Contrast; Uniformity; Spatial resolution; Scatter correction; Wiener filter; Noise filter; Patient positioning; Stereotactic radiosurgery; Gammakniv; Strålkniv; Cone-Beam Computed Tomography; Bildkvalitet; Bildrekonstruktion; Co-registrering; Kontrast; Uniformitet; Spatial upplösning; Spridningskorrigering; Wienerfilter; Brusfilter; Stereotaktisk strålkirurgi;

   Abstract : The Gamma Knife is a non-invasive stereotactic radiosurgery system used for treatments of deep targets in the brain. Accurate patient positioning is needed for precise radiation delivery to the target. READ MORE

6. 5. Optimization of the Gamma Knife Treatment Room Design

   University essay from KTH/Fysik

   Author : Nelly Nygren; [2021]
   Keywords : Gamma Knife; Treatment Room; Radiation Shielding; Dose Calculation; Computation; Monte Carlo; Simulation; Phase Space; Optimization; Gamma Knife; Behandlingsrum; Strålskydd; Stråldosberäkning; Beräkning; Monte Carlo; Simulering; Fasrum; Optimering;

   Abstract : Radiation shielding is a central part of the design of treatment rooms for radiation therapy systems. The dose levels that medical staff and members of the public can be exposed to outside the treatment rooms are regulated by authorities and influence the required wall thicknesses and possible locations for the systems. READ MORE