Search for dissertations about: "atrium"

Showing result 16 - 20 of 42 swedish dissertations containing the word atrium.

  2. 16. Carbon dioxide de-airing in cardiac surgery

    Author : Peter Svenarud; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Carbon dioxide; De-airing; Air embolism; Cardiac surgery; Insufflation device; Microemboli; Transesophageal echocardiography;

    Abstract : Background: The risks connected with the presence of air microemboli in open-heart surgery, have recently been emphasized by reports that their number is correlated with the degree of postoperative neuropsychological disorder. Insufflation of carbon dioxide (C02) into the chest wound is used in open-heart surgery to de-air the heart and great vessels. READ MORE

  4. 17. Multidimensional magnetic resonance imaging : new methods for analysis of cardiovascular dynamics

    Author : Lars Wigström; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Cardiovascular flow and motion occur in three-dimensional (3D) space and vary dynamically over the cardiac cycle. The description of these complicated patterns using non-invasive imaging requires new tools for data acquisition, processing and visualization. READ MORE

  5. 18. Cardiovascular fluid dynamics : methods for flow and pressure field analysis from magnetic resonance imaging

    Author : Tino Ebbers; Håkan Arheden; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Cardiovascular blood flow is highly complex and incompletely understood. Blood flow patterns are expected to influence the opening and closing of normal and prosthetic heart valves, the efficiency of cardiac filling and ejection, and the resistance to thrombus formation within the heart. READ MORE

  6. 19. Diagnosis of interatrial shunts and the influence of patent foramen ovale on oxygen desaturation in obstructive sleep apnea

    Author : Magnus C Johansson; Göteborgs universitet; []
    Keywords : Patent foramen ovale; atrial septal defect; obstructive sleep apnea; contrast transesophageal echocardiography; percutaneous closure;

    Abstract : Patent foramen ovale (PFO) is found in 27% of the population and although mostly asymptomatic, PFO has been associated with e.g. cryptogenic stroke and, rarely, also with oxygen desaturation. PFO and atrial septal defects may nowadays be closed percutaneously without open heart surgery. READ MORE

  7. 20. The Role of Transesophageal Echocardiography in Clinical Decision-Making in Patients with Stroke or Atrial Fibrillation

    Author : Anders Roijer; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; stroke; cardioversion; Transesophageal echocardiography; embolic sources; atrial fibrillation;

    Abstract : The subject of this thesis is the clinical use of transesophageal echocardiography (TEE) in patients with stroke or atrial fibrillation. Subjects were examined with echocardiography and sonography of the carotid artery. A control group of randomly selected volunteers without cerebrovascular disease was compared to patients with ischemic stroke. READ MORE