Sökning: "CT guidance"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden CT guidance.

  1. 1. Three-dimensional guidance for Endovascular Aortic Repair

    Författare :Giasemi Koutouzi; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; anatomy deformation; CBCT; EVAR; image fusion; image guidance; image registration;

    Sammanfattning : Image fusion (IF) of preoperative computed tomography (CT) with intraoperative cone-beam CT (CBCT) is a potentially powerful tool for guidance during endovascular aortic repair (EVAR). It may improve intraoperative anatomic visualization and reduce doses of radiation and contrast medium. LÄS MER

  3. 2. Percutaneous Nephrostomies : Planning for an Optimal Access, Complications, Follow-up and Outcome

    Författare :Eva Radecka; Anders Magnusson; Marianne Brehmer; Torbjörn Andersson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Percutaneous nephrostomy; Percutaneious nephrolithotripsy; Complications; Puncture technique; CT guidance; Radiologisk forskning; Radiological research; Radiologisk forskning;

    Sammanfattning : Percutaneous nephrostomy (PCN) is a well-established intervention performed to divert urine from the collecting system in ureteric obstruction or as a prelude to interventional procedures such as stent placement or percutaneous nephrolithotripsy (PCNL). The aim of this thesis is to enhance planning for an optimal insertion of PCN, investigate complications, long-term management, follow-up and outcome in patients with PCN treatment and to increase accuracy in CT-guided punctures. LÄS MER

  4. 3. Radiologic diagnosis of appendicitis in children

    Författare :Sylvie Kaiser; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Appendicitis; appendix; ultrasonography; computed tomography; appendectomy; perforation; diagnostic accuracy; decision analysis;

    Sammanfattning : Suspected appendicitis is the most common cause of emergency abdominal surgery in children. Because of the often atypical clinical findings, the diagnosis of appendicitis is difficult and may be delayed. Perforation has been reported to occur in 23-73% of children with acute appendicitis. LÄS MER

  5. 4. Irreversible electroporation in the liver

    Författare :David Stillström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Introduction: Malignant tumours in the liver are divided into primary liver cancers and liver metastases. Among primary liver cancers, hepatocellular carcinoma (HCC) accounts for 75-85% and is globally the fourth most common cause of cancer related death. Colorectal cancer (CRC) is the second most common cause of cancer related death. LÄS MER

  7. 5. Imaging of early distal tarsal osteoarthritis in Icelandic horses

    Författare :Charles Ley; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The early stages of osteoarthritis (OA) are characterised by focal morphological changes that may slowly progress if joint repair fails. Validated, non-invasive and affordable methods to diagnose the early stage of OA in horses are lacking. LÄS MER