Essays about: "patient positioning"

Showing result 21 - 25 of 34 essays containing the words patient positioning.

  1. 21. Advanced Visualization Techniques for Laparoscopic Liver Surgery

    University essay from Linköpings universitet/Medie- och Informationsteknik; Linköpings universitet/Tekniska högskolan

    Author : Dimitrios Felekidis; [2015]
    Keywords : ;

    Abstract : Laparoscopic liver surgery is mainly preferred over the traditional open liver surgery due to its unquestionable benefits. This type of surgery is executed by inserting an endoscope camera and the surgical tools inside the patient’s body through small incisions. READ MORE

  3. 22. 3D/2D Image Registration for Patient Positioning in Stereotactic Radiosurgery

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

    Author : Simon Hössjer; [2015]
    Keywords : 3D 2D; Image Registration; Radiosurgery;

    Abstract : 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. READ MORE

  4. 23. MRI only radiotherapy using synthetic CT images: Dosimetric accuracy and patient positioning strategies in an MRI only workflow

    University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Author : Emilia Persson; [2015]
    Keywords : Medicine and Health Sciences;

    Abstract : Background and purpose: Magnetic resonance imaging (MRI) only radiotherapy has, due to superior soft tissue contrast of MRI and the possible reduction of systematic uncertainties, grown into a promising technique. The purpose of this work is to investigate parts of an MRI only workflow with synthetic computed tomography (sCT) images generated from MRI. READ MORE

  5. 24. Breathing adapted radiotherapy of breast cancer: Investigation of two different gating techniques and visual guidance, using optical surface scanning and pressure monitoring

    University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Author : Lovisa Bergh; [2014]
    Keywords : Medicine and Health Sciences;

    Abstract : Background and purpose: Post-operative adjuvant radiotherapy of left-sided breast cancer patients is associated with cardiac and pulmonary complication. By utilizing different respiratory gating techniques the absorbed dose to the heart and lung can decrease. READ MORE

  6. 25. Accuracy of inverse treatment planning on computed tomography like images derived from magnetic resonance data

    University essay from Institutionen för fysik

    Author : Mohammad Mehdi Akhtari; [2013]
    Keywords : ;

    Abstract : Treatment planning for radiotherapy involves different types of imaging to delineate target volume precisely. The most suitable sources to get 3D information of the patient are the computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET)/CT modalities. READ MORE