Search for dissertations about: "Digital radiography"

Showing result 11 - 15 of 32 swedish dissertations containing the words Digital radiography.

  2. 11. Radiation dose and image quality in diagnostic radiology : optimization of the dose - image quality relationship with clinical experience from scoliosis radiography, coronary intervention and a flat-panel digital detector

    Author : Håkan Geijer; Hans Ringertz; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Det är känt att röntgenstrålning kan orsaka cancersjukdomar, hudskador och andra sidoeffekter. Därför är det viktigt och även föreskrivet i lag att strålexpaneringen inom diagnostisk radiologi skall sänkas så långt som möjligt. Detta kallas på engelska ALARA-principen (As Low As Reasonably Achievable). READ MORE

  4. 12. Chest Tomosynthesis for Detection and Surveillance of Pulmonary Pathology. Studies on Cystic Fibrosis and Solid Pulmonary Nodules

    Author : Carin Meltzer; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; digital tomosynthesis; cystic fibrosis; solid lung nodules;

    Abstract : Introduction: Digital tomosynthesis (DTS) is a relatively new imaging modality in thoracic imaging. The technique is based on the equipment of conventional radiography, upgraded with a moving tube that enables separation of structures that are superimposed on chest x-ray (CXR). READ MORE

  5. 13. Preclinical Molecular Imaging using Multi-Isotope Digital Autoradiography - Techniques and Applications

    Author : Anders Örbom; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Autoradiography; Radioimmunotherapy; Antibodies; Molecular Imaging; Multi-Radionuclide Imaging; Silicon-strip detector;

    Abstract : Molecular imaging, both in vivo and ex vivo, is playing an increasingly important role in preclinical medical research. When using radionuclide-labeled tracers, e.g. in the development of radiopharmaceuticals for diagnostic imaging or for radionuclide therapy, quantitative in vivo imaging can be performed using emission tomography. READ MORE

  6. 14. Visual linearization of image data for the display of digital intraoral radiographs

    Author : Gang Li; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Digital intraoral radiography has developed rapidly during the past decade. The most important advantage of this technique is that it breaks the fixed relationship between exposure and density that is inherent in film radiography. Thus, processing of digital intraoral radiographs after image capturing has become possible. READ MORE

  7. 15. On the use of radiography and radiation dose consideration in orthodontic treatment

    Author : Christina Stervik; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; effective dose; errors; estimated risk; intra-oral radiograph; organ dose; orthodontic treatment; orthodontists; panoramic image; questionnaires; radiation doses;

    Abstract : The aims of this thesis were to analyse the use of radiography and radiation risk associated with orthodontic treatment. Study I measured absorbed doses to radiosensitive organs in the head and neck in an anthropomorphic phantom head using thermo¬luminescent dosimeters (TLDs) from digital intra-oral and panoramic radiography. READ MORE