Sökning: "Radiosurgery"

Visar resultat 11 - 15 av 16 uppsatser innehållade ordet Radiosurgery.

  1. 11. 3D/2D Image Registration for Patient Positioning in Stereotactic Radiosurgery

    Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Simon Hössjer; [2015]
    Nyckelord :3D 2D; Image Registration; Radiosurgery;

    Sammanfattning : In the application of stereotactic radiosurgery for treatment of brain tumors it is imperative that patients are positioned with sub-millimetre accuracy so as to not damage surrounding healthy tissue during treatment. We investigate how feasible the technique of digitally reconstructed radiographs is as a registration method for patient positioning in this type of high-accuracy application. LÄS MER

  3. 12. Dose-Volume Histogram Prediction using KernelDensity Estimation

    Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :JOHANNA SKARPMAN MUNTER; [2014]
    Nyckelord :;

    Sammanfattning : Dose plans developed for stereotactic radiosurgery are assessed by studying so called Dose-Volume Histograms. Since it is hard to compare an individual dose plan with doseplans created for other patients, much experience and knowledge is lost. LÄS MER

  4. 13. Hardware-in-the-Loop simulering av motorservon på ett inbyggt system

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :MAZDA IMANI; [2014]
    Nyckelord :;

    Sammanfattning : This report presents a master thesis project performed at Elekta AB during the fall of 2013 and early 2014. Elekta is a medical technology company and their main product in the Stockholm office is a gamma knife used for radiosurgery. LÄS MER

  5. 14. Multiobjective optimization in radiosurgery : How to approximate and navigate on the Pareto surface

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Jenni Svensson; [2014]
    Nyckelord :;

    Sammanfattning : Cancer is a common cause of death worldwide and radiotherapy is one of the treatments used. Since treatment planning is a time consuming matter for the radiation therapist, a way to decrease the time spent finding the plan would be an improvement. LÄS MER

  7. 15. Robust Optimization for Radiosurgery under the Static Dose Cloud Approximation

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Marcus Josefsson; [2014]
    Nyckelord :;

    Sammanfattning : This report investigates methods of optimization to make treatment plans in radiosurgery robust to spatial uncertainty, and attempts to determine whether they could be used with bene t in a Gamma Knife context. To make the problem mathematically feasible, regions of interest (ROIs) are approximated to move in a pre-computed static dose cloud, which in turn is estimated by methods of linear interpolation and linear approximation. LÄS MER