Sökning: "Adaptive Radiotherapy"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Adaptive Radiotherapy.

  1. 1. Uncertainties in the use of synthetic CT (sCT) for daily online adaptive radiotherapy for lung cancer

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Johansson Vivika; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background and purpose: Cone Beam Computed Tomography (CBCT) based online adaptive radiotherapy (oART) has been clinically implemented for several anatomical sites worldwide. However, random and abrupt anatomical changes with large density alterations can occur in lung patients, leading to uncertainties with synthetic computed tomography (sCT) and dose calculation. LÄS MER

  3. 2. Verification measurements on MRI-linac with PTW BEAMSCAN MR

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Olivia Kvarnlöf; [2022]
    Nyckelord :;

    Sammanfattning : In radiotherapy the main goal is to kill cancer cells, prevent them from growing and reproducing, while healthy tissue is spared. One technique to treat cancer is to use external radiotherapy where a linear accelerator (linac) is used to generate a high energy radiation photon beam. LÄS MER

  4. 3. Reinforcement learning applied to MLC tracking

    Master-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Adithya Raju Ganeshan; [2021]
    Nyckelord :Reinforcement Learning; Multileaf Collimator; Magnetic Resonance Imaging; Adaptive Radiotherapy;

    Sammanfattning : Radiotherapy has become an ever more successful treatment option for cancer.Advances in imaging protocols combined with precise therapy devices suchas linear accelerators contribute towards millimeter precision of treatmentdelivery with far fewer side effects. LÄS MER

  5. 4. Feasibility of adaptive SBRT of prostate cancer: Investigating uncertainties in AI-driven and CBCT-guided online adaptive radiotherapy

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Sevgi Emin; [2020]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Purpose: Recent developments in external radiotherapy and its utilization with artificial in- telligence (AI) enables advanced treatment plans for a range of different disease sites. By adapting to the anatomy of the day, target coverage can be ensured while sparing more healthy tissue. LÄS MER

  7. 5. Analysis of bladder cancer treatment plans generated for online adaptive radiotherapy and validation of an integrated independent dose calculation software

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Daria Badika; [2020]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Purpose: In 2019 Varian EthosTM linear accelerator (Varian Medical Systems, CA, USA) with integrated artificial intelligence (AI) was installed at Herlev Hospital, Copenhagen, Denmark, enabling online adaptive radiotherapy (oART) e.g for bladder cancer patients with a large margin reduction. LÄS MER