Sökning: "Balloon angioplasty"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Balloon angioplasty.

  1. 1. Computer Aided Angioplasty : Patient-specific arterial modeling and smooth 3D contact analysis of the stent-balloon-artery interaction

    Författare :Dimitrios Kiousis; Gerhard Holzapfel; Kenneth Runesson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Contact; continuous surfaces; B-splines; balloon angioplasty; stenting; FEM; Bioengineering; Bioteknik;

    Sammanfattning : Paper A: In this paper, the development and implementation of a contact algorithm based on C2-continuous surface representations is discussed. In 3D contact simulations involving models with arbitrarily curved surfaces (as in the case of vessel walls), the discretization of the contact surfaces by means of facet-based techniques could lead to numerical instabilities and finally loss of quadratic convergence. LÄS MER

  3. 2. Life situation in people with peripheral arterial disease and their family members

    Författare :Louise Egberg; Anne-Cathrine Mattiasson; Johan Styrud; Karl-Gösta Ljungström; Sissel Andreassen; Berit Lundman; Sophiahemmet Högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Peripheral vascular disease; Experiences; Angioplasty; balloon; Health related quality of life; Life situation; Family members; Peripheral Vascular Disease;

    Sammanfattning : Life with peripheral arterial disease and the resulting impaired walking ability leads to major limitations in daily life and a decreased quality of life. The overall aim of this thesis was to generate understanding about the life situation among people living with peripheral arterial disease and their family members. LÄS MER

  4. 3. Inflammatory Response in Peripheral Arterial Disease

    Författare :Peter Danielsson; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; muskelsystem; reumatologi; rheumatology locomotion; Skelett; Skeleton; Polymorphism; Metabolism; Prostacyclin; Microdislysis; Diabetes mellitus; Revascularisation; Angioplasty; Endothelial cells; White blood cells; Inflammation; Peripheral Arterial Disease; muscle system;

    Sammanfattning : Peripheral arterial disease (PAD) is the manifestation of atherosclerotic lesions in arteries supplying blood to the legs. Atherosclerosis is now recognized as an inflammatory disease of the vessel wall and important features in the pathophysiology are activation of WBC, endothelial cells and increased levels of inflammatory mediators. LÄS MER

  5. 4. Inhibition of smooth muscle cell proliferation after balloon injury

    Författare :Bojan Cercek; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Smooth muscle cell proliferation is an important part of the arterial response to injury Insulin like growth factor-I (IGF-I) is involved in regulation of cell proliferation and hypopituitarism is associated with decreased vessel wall response to injury. We investigated the role of vascular IGF-I in vessel wall response to injury. LÄS MER

  7. 5. On-line vectorcardiography during coronary angioplasty and unstable coronary artery disease

    Författare :Jens Jensen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :vectorcardiography; myocardial ischemia; coronary artery disease; percutaneous coronary angioplasty; prognosis; gender; tissue Doppler echocardiography;

    Sammanfattning : This thesis evaluates the usefulness of continuous vectorcardiography (VCG) in patients undergoing elective coronary angioplasty and in patients with unstable coronary artery disease (CAD), for detection and quantitation of myocardial ischemia and for identification of patients at risk of coronary events. The aims were to investigate, whether continuous on-line VCG: 1. LÄS MER