Essays about: "dose planning"
Showing result 11 - 15 of 118 essays containing the words dose planning.
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11. STANDARDIZED ORGAN AT RISK VOLUME FOR EXTERNAL BEAM RADIATION THERAPY IN PROSTATE CANCER AND ITS RELATIONSHIP TO VOLUMES DEFINED BY CLINICAL PRACTICE
University essay fromAbstract : Background/ Purpose: In radiation therapy (RT), the radiation dose calculated in tumours and normal tissue depends on how the volumes are defined. It is difficult to standardize how tumour volumes should be defined because their anatomical extension can differ greatly between individuals. READ MORE
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12. " Optimization of Margins and Plan Robustness for Proton Therapy of Hodgkin’s Lymphoma"
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : Purpose/Background: Utilizing proton therapy (PT) for treatment of Hodgkin’s lymphoma (HL) has demonstrated favorable features, particularly a reduced dose to organs at risk (OAR) in comparison with photon radiotherapy. However, there is a coherent complexity with PT including its uncertainties, such as range-uncertainties and set-up variations as protons are highly sensitive to tissue density variations within the beam-path. READ MORE
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13. Evaluation of the treatment planning system decimal ElectronRT and custom-made bolus for FLASH-irradiation
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : Introduction: The novel external beam therapy technique using ultra-high dose rates known as FLASH has become known for its normal tissue sparing effect. Currently in Lund, veterinary clinical trials are carried out on canine patients using electrons with ultra- high dose rates. READ MORE
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14. Impact of MR training data on the quality of synthetic CT generation
University essay from Umeå universitet/Institutionen för fysikAbstract : Both computed tomography (CT) and magnetic resonance imaging (MRI) have a purpose for radiotherapy. But having two imaging sessions brings uncertainty which makes it beneficial to create synthetic CT (sCT) images from MR images. In this work a Generative Adversarial Network (GAN) was designed and implemented for sCT generation. READ MORE
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15. Surface Guided Helical Tomotherapy for Total Marrow Irradiation
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : Background: Total marrow irradiation (TMI) with helical tomotherapy treatment (HT-TMI) can be used as conditioning regimen for leukemia patients prior to stem cell transplantation by radiating the skeletal tissue. To ensure adequate dose coverage a margin is applied to the clinical target volume (CTV), i.e. planning target volume (PTV) margin. READ MORE