Sökning: "capsule"

Visar resultat 1 - 5 av 140 avhandlingar innehållade ordet capsule.

  1. 1. Role of capsule endoscopy in small bowel management

    Författare :Artur Nemeth; Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Capsule endoscopy; Crohn s disease; ; Patency capsule; small bowel; Capsule retention;

    Sammanfattning : The small bowel is difficult to reach and to examine endoscopically. Video capsule endoscopy (VCE) using a wireless imaging technology was introduced 2000. VCE is an ingestible capsule camera that takes photographs during its passage throughout the gastrointestinal tract. LÄS MER

  3. 2. Posterior capsule opacification : An experimental study in vitro and in vivo

    Författare :Niklas Wallentin; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Posterior capsule opacification PCO ; after-cataract; lens epithelial cell; proliferation; aqueous humor AqH ; inflammation; growth factors; basic fibroblast growth factor bFGF ; transforming growth factor-β TGF-β ; extracapsular cataract extraction; corneal incision; rabbit; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci; galenisk farmaci; Pharmaceutics;

    Sammanfattning : The clinical and economic significance of posterior capsule opacification (PCO) makes it an important public health problem. A better understanding of the pathogenesis in order to reduce/prevent PCO is needed. For this purpose an experimental model in the rabbit was used and further developed in thisthesis. LÄS MER

  4. 3. On posterior capsule opacification

    Författare :Karin Sundelin; Göteborgs universitet; []
    Nyckelord :posterior capsule opacification; quantification; capsulotomy; benefit; intraocular; lens; optic design; Catquest; Evaluation of Posterior Capsule Opacification;

    Sammanfattning : AimsPosterior capsule opacification (PCO) is the most common complication after cataractsurgery. The aim of this study was to increase our knowledge about PCO regardingquantification, treatment effects and how different designs of intraocular lenses(IOLs) influence occurrence. LÄS MER

  5. 4. Optimising performance in clinical capsule endoscopy

    Författare :Anastasios Koulaouzidis; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Capsule endoscopy; small bowel innovation; image improvement; software; localisation; KID; FICE;

    Sammanfattning : Video capsule endoscopy (VCE), perfomed by ingesting a small vitamin-sized camera pill, was developed over a period of a couple of decades and –since its introduction in clinical practice at the dawn of the millennium– has become an essential tool in the diagnosis and management of small bowel (SB) diseases. At the same time, other fields such as minimally invasive diagnosis of other parts of the gastointestinal (GI) tract has been or is currently explored as future applications of this technology. LÄS MER

  7. 5. Simulation of individual cells in flow

    Författare :Lailai Zhu; Luca Brandt; Michael Graham; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrodynamic interaction; swimming microorganisms; capsule; Stokes flow; finite element method; boundary integral method; general geometry Ewald method; spectral element method; viscoelastic fluid; cellular deformation; flow cytometry; cell sorting; microrheology; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : In this thesis, simulations are performed to study the motion ofindividual cells in flow, focusing on the hydrodynamics of actively swimming cells likethe self-propelling microorganisms, and of passively advected objects like the red bloodcells. In particular, we develop numerical tools to address the locomotion ofmicroswimmers in viscoelastic fluids and complex geometries, as well as the motion ofdeformable capsules in micro-fluidic flows. LÄS MER