Sökning: "Mikrobubblor"
Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Mikrobubblor.
1. Ultrasound Imaging Velocimetry using Polyvinyl Alcohol Shelled Microbubbles
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : Current research within the field of ultrasound contrast agents (UCAs) aims at developing capsules which are not only acoustically active, but also have a chemically modifiable surface. This enables use in new areas, including targeted drug delivery and theranostics. LÄS MER
2. Implementation of Super-Resolution Ultrasound Imaging for in Vitro Experiments
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : Ultrasound imaging systems are a safe and affordable imaging modality with the disadvantage of low spatial resolution, especially for assessing smaller vessels. However, with the implementation of super-resolution ultrasound imaging techniques, studies have shown promising results in achieving a resolution below the diffraction limit. LÄS MER
3. Development of a Tool for Imaging the Pumping-Out Behavior of Poly- Vinyl Alcohol Shelled Microbubbles
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : For many years, microbubbles have been used as ultrasound contrast agents to improve the quality of diagnostics, seeing that they produce more backscattering ultrasound than blood does. Novel types of microbubbles and increased knowledge about their different behaviors have led to other suggested areas of use. LÄS MER
4. Image Contrast Enhancement using Poly Vinyl Alcohol Microbubble Response to High MI Ultrasound
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : The induced rupturing of Poly Vinyl Alcohol (PVA) microbubbles with high mechanical index (MI)ultrasound beam is used in multiple medical application such as drug delivery, image contrastenhancement and perfusion imaging.In this work, Triggered imaging technique with subtraction algorithm is used to enhance themicrobubble’s (MB) contrast over tissue (CTR). LÄS MER
5. Utvärdering av mikrobubblor i ett dialyssystem
Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik; Umeå universitet/Institutionen för strålningsvetenskaperSammanfattning : Dialys görs för att avlägsna restprodukter och avlägsna vatten från blodet. Under dialysbehandling förekommer mikroluftbubblor i blodet som går tillbaka in i patienten. Mikrobubblor i blod kan medföra risk för patienten under behandling när dessa passerar lungbarriären. LÄS MER