Search for dissertations about: "radiography"

Showing result 6 - 10 of 146 swedish dissertations containing the word radiography.

  2. 6. Quality Aspects of Digital Radiography in General Dental Practice

    Author : Kristina Hellén-Halme; Malmö högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Digital radiography;

    Abstract : POPULÄRVETENSKAPLIG SAMMANFATTNINGDet övergripande syftet med denna avhandling var att klargöra hur digital röntgenteknik används hos allmäntandläkaren och framför allt har syftet varit att undersöka kvaliteten hos röntgenbilderna och hur den skulle kunna förbättras. I det första arbetet studerades digitala röntgenbilder som var inskickade i samband med förhandsprövningar till Försäkringskassan. READ MORE

  4. 7. Low-dose computed tomography of the abdomen and lumbar spine

    Author : Muhammed Alshamari; Håkan Geijer; Seppo Koskinen; Örebro universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Tomography; X-Ray Computed; Radiography; Radiation Dosage; Abdomen; Spine; Lumbosacral Region; Regression Analysis; Kirurgi; Surgery;

    Abstract : Radiography is a common radiologic investigation despite abundant evidence of its limited diagnostic value. On the other hand, computed tomography (CT) has a high diagnostic value and is widely considered to be among the most important advances in medicine. READ MORE

  5. 8. Tomosynthesis in pulmonary cystic fibrosis

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

    Abstract : 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. READ MORE

  6. 9. Imaging of hip trauma - occult, suspect and concomitant fractures

    Author : David Collin; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hip fractures; Occult; Pelvic; Radiography; Computed tomography; Magnetic resonance imaging; Observer variation;

    Abstract : Background: Between one and nine percent of all hip fractures are occult or suspect and further examinations with computed tomography (CT) and/or magnetic resonance imaging (MRI) are vital for further handling. Statistically robust conclusions have not been previously reported. READ MORE

  7. 10. An Experimental Study on the Dynamics of a Single Droplet Vapor Explosion

    Author : Roberta Concilio Hansson; Weimin Ma; Geroges Berthoud; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; steam explosions; radiography; melt preconditioning; noncondensable gas; Low energy physics; Lågenergifysik;

    Abstract : The present study aims to develop a mechanistic understanding of the thermal-hydraulic processes in a vapor explosion, which may occur in nuclear power plants during a hypothetical severe accident involving interactions of high-temperature corium melt and volatile coolant. Over the past several decades, a large body of literature has been accumulated on vapor explosion phenomenology and methods for assessment of the related risk. READ MORE