Sökning: "dose-area product"

Hittade 3 avhandlingar innehållade orden dose-area product.

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

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

    Sammanfattning : 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. LÄS MER

  3. 2. Tomosynthesis in pulmonary cystic fibrosis

    Författare :Kristina Vult von Steyern; Lund Diagnostisk radiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cystic fibrosis; Lung; Radiation dose; Radiography; Scoring methods; Tomography; spiral computed; X-ray computed;

    Sammanfattning : The aims of this thesis were to investigate whether chest tomosynthesis might be used in pulmonary cystic fibrosis, to design and validate a tomosynthesis scoring system, and to determine the effective dose from chest tomosynthesis in children. In a prospective study starting in 2008 clinical chest radiography or computed tomography (CT) were supplemented with a tomosynthesis examination of the lungs. LÄS MER

  4. 3. New technologies for the further advancement of ERCP

    Författare :Marcus Reuterwall Hansson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: The capabilities of conventional endoscopic retrograde cholangiopancreatography (ERCP) are hampered by several limitations. Newly developed adjunct technologies such as single operator peroral cholangiopancreatoscopy (SOPCP) and new imaging techniques could overcome some of these limitations, but their role in common clinical practice have not yet been established. LÄS MER