Essays about: "digital x-ray imaging"

Showing result 1 - 5 of 8 essays containing the words digital x-ray imaging.

  1. 1. Preparations for photon external beam radiotherapy treatment planning of small animals

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Joanie Diha Guei; [2022]
    Keywords : Medicine and Health Sciences;

    Abstract : Introduction:The XenX is a small animal irradiation system that acquires high-resolution cone-beam tomography (CBCT) images of small animals and treats small animals with higher precision than medical linear accelerators. MuriSlice is a software for CBCT image reconstruction. READ MORE

  3. 2. Correlation between microstructure and fatigue cracks in cast aluminium alloy A205

    University essay from Jönköping University/Tekniska Högskolan

    Author : Max Holmberg; Pontus Sundberg; [2022]
    Keywords : Aluminium Alloy A205;

    Abstract : Materials research in the aerospace industry is, among other things, focused on reducing the weight and increasing the life of components. Materials with high strength and long lifespan are therefore examined. READ MORE

  4. 3. Synchrotron X-ray Tomography Study of Bone-implant Integration

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Ornella Lohéac; [2021]
    Keywords : Bone-implant; Digital volume correlation; Micro-computed tomography; PEEK; Synchrotron; Technology and Engineering;

    Abstract : Implant loosening is a recurring problem in the field of orthopedics, typically resulting in a physical and financial burden for the patient. Proper integration of orthopedic implants within host bones is a fundamental requirement for the successful function and limited risk of failure of implants which, in-vivo, must support various loading conditions. READ MORE

  5. 4. Assessment of image quality in x-ray fluoroscopy based on Model observers as an objective measure for quality control and image optimization

    University essay from Stockholms universitet/Fysikum

    Author : Henrik Elgström; [2018]
    Keywords : image quality; fluoroscopy; Model observer;

    Abstract : BACKGROUND: Although the Image Quality (IQ) indices calculated by objective Model observers contains more favourable characteristics compared to Figure Of Merits (FOM) derived from the more common subjective evaluations of modern digital diagnostic fluoroscopy units, like CDRAD or the Leeds test-objects, practical issues in form of limited access to unprocessed raw data and intricate laboratory measurements have made the conventional computational methods too inefficient and laborious. One approach of the Statistical Decision Variables (CDV) analysis, made available in the FluoroQuality software, overcome these limitations by calculating the SNR2rate from information entirely based on image frames directly obtained from the imaging system, operating in its usual clinical mode. READ MORE

  6. 5. Validation of simulation tool for C-arm X-ray systems : Source and scatter model

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

    Author : Martina Jurcova; [2016]
    Keywords : Simulation; C-arm system; X-ray imaging; focal spot; scattering; image sharpness;

    Abstract : Continuous improvement of image quality is one of the priorities in medical imaging. Therefore, development of a simulation tool allowing to generate realistic images would be of great value to understand better the impact of the components on the image quality metrics and to choose imaging set-ups or new design features to optimize output of existing systems and to prototype new ones and to formalize the link between objective and subjective image quality metrics. READ MORE