Essays about: "collimator"

Showing result 1 - 5 of 34 essays containing the word collimator.

  1. 1. Feasibility of Dynamic SPECT-Renography with Automated Evaluation Using a Deep Neural Network

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Viktor Rogowski; [2021]
    Keywords : Medicine and Health Sciences;

    Abstract : Introduction: Renography is a standard diagnostic examination that evaluates renal function, renal pelvic dilatation and urinary obstruction. Renography is performed by injecting a radiopharmaceutical (predominately 99mTc-MAG3) and using gamma camera to image the biodistribution in a dynamic sequence. READ MORE

  2. 2. Reinforcement learning applied to MLC tracking

    University essay from KTH/Medicinteknik och hälsosystem

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

    Abstract : 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. READ MORE

  3. 3. Quality Assurance of Intra-oral X-ray Images

    University essay from Umeå universitet/Radiofysik

    Author : Dieudonne Diba Daba; [2020]
    Keywords : Intraoral; X-rays; Intraoral X-rays; Quality assurance; Quality control; image quality; dental; Intraoral; Röntgen; Kvalitetskontroll; Intraoral röntgen; tandvård;

    Abstract : Dental radiography is one of the most frequent types of diagnostic radiological investigations performed. The equipment and techniques used are constantly evolving. READ MORE

  4. 4. Impact of MLC shape smoothing on VMAT plan complexity and agreement between planned and delivered dose

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Linnéa Strandell; [2020]
    Keywords : Medicine and Health Sciences;

    Abstract : Background/Purpose: The aperture shape controller (ASC) was introduced in the Eclipse treatment planning system to reduce plan complexity by counteracting irregular multileaf collimator (MLC) shapes. This should lead to decreased difference between the planned and measured dose distribution. READ MORE

  5. 5. Measurement and modeling of the Multileaf collimator MLCi2

    University essay from KTH/Fysik

    Author : Rafaela Örn; [2019]
    Keywords : ;

    Abstract : .... READ MORE