Search for dissertations about: "low-dose CT"

Showing result 1 - 5 of 16 swedish dissertations containing the words low-dose CT.

  1. 1. Adolescent Idiopathic Scoliosis. The Role of Low Dose Computed Tomography

    University dissertation from Department of Radiology, Lund University

    Author : Kasim Abul-Kasim; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; low-dose spine CT; effective dose; screw misplacement; adolescent idiopathic scoliosis; outcome.; titanium screws; image quality; neurovascular complication; phantom;

    Abstract : Continuous implementation of new operative methods for correction and stabilization of spinal deformities in young patients with AIS demands a detailed morphological analysis of the vertebral column. CT spine according to protocols available in daily clinical practice means high radiation dose to these young individuals. READ MORE

  2. 2. CT Urography Efforts to Reduce the Radiation Dose

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Pär Dahlman; Anders Magnusson; Anders Sundin; [2011]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Urinary tract malignancy; renal cell carcinoma; urography; x-ray computed tomography; radiation dosage; dose escalation; hematuria diagnosis; MEDICINE Physiology and pharmacology Radiological research Diagnostic radiology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Diagnostisk radiologi; Radiology; Radiologi;

    Abstract : Computed tomography urography (CTU) is today the imaging method used to investigate patients with suspected urinary tract malignancy, replacing the old imaging method intravenous pyelography (IVP) about a decade ago. The downside of this shift was that the effective radiation dose to the examined patient was eight times higher for CTU compared to IVP. READ MORE

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

    University dissertation from Örebro : Örebro university

    Author : Muhammed Alshamari; Håkan Geijer; Seppo Koskinen; [2016]
    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

  4. 4. Acute Colonic Diverticulitis The role of computed tomography in primary diagnosis, prediction of complications and surgical intervention

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Arnar Thorisson; Abbas Chabok; Torkel Brismar; [2018]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Colonic diverticulitis; complicated diverticulitis; computed tomography; low-dose CT; Radiology; Radiologi; Surgery; Kirurgi;

    Abstract : The overall aim of this thesis was to expand the current knowledge regarding the advantages and limitations of computed tomography (CT) for patients with acute diverticulitis and evaluate outpatient treatment for uncomplicated diverticulitis.Paper I: A retrospective evaluation of 602 patients with reported uncomplicated diverticulitis. READ MORE

  5. 5. Conventional spiral and low-dose computed mandibular tomography for dental implant planning

    University dissertation from Göteborg : University of Gothenburg

    Author : Annika Ekestubbe; Göteborgs universitet.; Gothenburg University.; [1999]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Artifacts; Dental Implantation; Endosseous; methods; Dental Implants; Humans; Jaw; Edentulous; radiography; Mandible; radiography; Patient Care Planning; Phantoms; Imaging; Radiation Dosage; Radiography; Dental; methods; Reproducibility of Results; Tomography; X-Ray; instrumentation; methods; Tomography; X-Ray Computed; methods;

    Abstract : Absorbed doses to radiosensitive organs in the head and neck from pre-implant conventional hypocycloidal, conventional spiral and computed tomography (CT) were measured with thermoluminescent dosimeters in an anthropomorphic phantom head. From conventional tomography organ doses, except to the major salivary glands, were below 0.2 mGy. READ MORE