Essays about: "Gamma Knife"

Showing result 11 - 15 of 24 essays containing the words Gamma Knife.

  1. 11. Segmentation of Cone Beam CT in Stereotactic Radiosurgery

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Awais Ashfaq; [2016]
    Keywords : Cone Beam CT; Convolutional Neural Networks; Image Segmentation; Leksell Gamma Knife Icon; Deep Learning.; Cone Beam CT; neurala nätverk baserade på faltning; bildsegmentering; Leksell Gamma Knife Icon; Djup inlärning.;

    Abstract : C-arm Cone Beam CT (CBCT) systems – due to compact size, flexible geometry and low radiation exposure – inaugurated the era of on-board 3D image guidance in therapeutic and surgical procedures. Leksell Gamma Knife Icon by Elekta introduced an integrated CBCT system to determine patient position prior to surgical session, thus advancing to a paradigm shift in facilitating frameless stereotactic radiosurgeries. READ MORE

  3. 12. In-beam proton range monitoring during proton therapy : a Monte Carlo study on the feasibility of secondary gamma imaging

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Gustaf Lönn; [2016]
    Keywords : ;

    Abstract : Proton radiation therapy allows for delivering a high dose to a well-confinedregion of interest due to the characteristic proton dose deposition. Due to protonrange straggling, anatomic variations in patients and small patient setup errors,treatment plans needs to account for proton range uncertainties of up to 3.5% invivo. READ MORE

  4. 13. Robust Optimization for Uncertain Radiobiological Parameters in Inverse Dose Planning

    University essay from KTH/Optimeringslära och systemteori

    Author : Jennie Falk; [2015]
    Keywords : ;

    Abstract : Cancer is a common cause of death worldwide with radiotherapy as one of the most used treatments. Radiation treatment plans are normally optimized using constraints on the maximum dose to tumours and minimum dose to surrounding healthy structures. READ MORE

  5. 14. Dynamic treatment with Leksell Gamma Knife Perfexion - A relaxed path sector duration optimization

    University essay from KTH/Optimeringslära och systemteori

    Author : Rikard Karlander; [2015]
    Keywords : ;

    Abstract : Stereotactic radiosurgery is an increasingly popular method for treating brain tumours and lesions. The Leksell Gamma Knife Perfexion by Elekta is one of the leading instruments for stereotactic radiosurgery. READ MORE

  6. 15. Dose-Volume Histogram Prediction using KernelDensity Estimation

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : JOHANNA SKARPMAN MUNTER; [2014]
    Keywords : ;

    Abstract : 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. READ MORE