Essays about: "organ motion"

Showing result 1 - 5 of 10 essays containing the words organ motion.

  1. 1. Optimization of b-value Acquisition and Parameter Estimation of Intravoxel Incoherent Motion Measurements

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Ivan Rashid; [2023]
    Keywords : Medicine and Health Sciences;

    Abstract : Radiotherapy is commonly used for cancer treatment, given to approximately half of all cancer patients in Sweden. Despite its widespread usage, there is currently no non-invasive and reliable imaging method that can identify regions of radiation resistance. READ MORE

  2. 2. 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

  3. 3. Breathing Effects in Proton Scanning for Hodgkin's Lymphoma

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : John Nilsson; [2022]
    Keywords : Medicine and Health Sciences;

    Abstract : Purpose/Background Proton beam scanning (PBS) for mediastinal Hodgkin's Lymphoma (HL) is limited when treating in free-breathing (FB) due to breathing motion in the thoracic region. Tumour motion and the time structure of the beam delivery will cause interplay and dose blurring effects, resulting in discrepancies of dose in the planned dose distribution both inside and at the edges of tumour volume (TV). READ MORE

  4. 4. 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

  5. 5. Automation of robust Pareto front-based radiotherapy treatment planning for prostate cancer patients

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Niklas Eliasson; [2019]
    Keywords : Medicine and Health Sciences;

    Abstract : Purpose/objective The main objective was to create a software that automates the process of creating treatment plans used for Pareto front-based dose planning for prostate cancer patients. A second objective/purpose was to add a robustness test to this program to evaluate the effect of prostate movements on the treatment plans. READ MORE