Search for dissertations about: "image quality"

Showing result 16 - 20 of 1551 swedish dissertations containing the words image quality.

  2. 16. Efficient GPU-based Image Registration : for Detailed Large-Scale Whole-body Analysis

    Author : Simon Ekström; Robin Strand; Filip Malmberg; Joel Kullberg; Håkan Ahlström; Fred Hamprecht; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Magnetic resonance imaging; Image registration; whole-body; Radiology; Radiologi;

    Abstract : Imaging has become an important aspect of medicine, enabling visualization of internals in a non-invasive manner. The rapid advancement and adoption of imaging techniques have led to a demand for tools able to take advantage of the information that is produced. READ MORE

  4. 17. Novel Approaches for Application of Principal Component Analysis on Dynamic PET Images for Improvement of Image Quality and Clinical Diagnosis

    Author : Pasha Razifar; Ewert Bengtsson; Mats Bergström; Harald Schneider; Habib Zaidi; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bildanalys; Dynamic PET; Noise Correlation; PCA; Image Quality; Slice-Wise; Pixel-Wise; Masked-Volume-Wise; Pre-normalization; Bildanalys; Image analysis; Bildanalys;

    Abstract : Positron Emission Tomography, PET, can be used for dynamic studies in humans. In such studies a selected part of the body, often the whole brain, is imaged repeatedly after administration of a radiolabelled tracer. READ MORE

  5. 18. Cone Beam Computed Tomography - radiation dose and image quality assessments

    Author : Sara Lofthag-Hansen; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cone beam computed tomography; anatomic landmarks; dose-area product; image quality; implant planning; periapical diagnosis; radiation dosimetry;

    Abstract : Diagnostic radiology has undergone profound changes in the last 30 years. New technologies are available to the dental field, cone beam computed tomography (CBCT) as one of the most important. READ MORE

  6. 19. Protein Model Quality Assessment : A Machine Learning Approach

    Author : Karolis Uziela; Arne Elofsson; Liam McGuffin; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Protein Model Quality Assessment; structural bioinformatics; machine learning; deep learning; support vector machine; proq; Artificial Neural Network; protein structure prediction; Biochemistry towards Bioinformatics; biokemi med inriktning mot bioinformatik;

    Abstract : Many protein structure prediction programs exist and they can efficiently generate a number of protein models of a varying quality. One of the problems is that it is difficult to know which model is the best one for a given target sequence. Selecting the best model is one of the major tasks of Model Quality Assessment Programs (MQAPs). READ MORE

  7. 20. Patient participation and quality of forensic psychiatric care

    Author : Mikael Selvin; Agneta Schröder; Kjerstin Almqvist; Lars Kjellin; Ingela Skärsäter; Örebro universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coercive care; forensic psychiatric care; instrument development; patient participation; psychiatric nursing; quality of care; quality improvement;

    Abstract : The aims of this thesis were to investigate the quality of forensic psychiatric care, to describe the concept of patient participation from a patient and health care professional perspective, and to initiate the development of an instrument for measuring participation from a patient perspective.Forensic psychiatric care is a specialized form of care where patients who have committed a crime that would normally have led to prison, instead are treated for a serious mental disorder. READ MORE