Sökning: "gadolinium"

Visar resultat 11 - 15 av 40 uppsatser innehållade ordet gadolinium.

1. 11. Differences in tumor volume for treated glioblastoma patients examined with 18F-fluorothymidine PET and contrast-enhanced MRI

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

   Författare :Karolina Hedman; [2020]
   Nyckelord :PET MRI; positron emission tomography; magnetic resonance imaging; brain tumor; glioblastoma; image segmentation; adaptive thresholding; feature extraction; radiotracer; gadolinium; image processing; image analysis;

   Sammanfattning : Background: Glioblastoma (GBM) is the most common and malignant primary brain tumor. It is a rapidly progressing tumor that infiltrates the adjacent healthy brain tissue and is difficult to treat. Despite modern treatment including surgical resection followed by radiochemotherapy and adjuvant chemotherapy, the outcome remains poor. LÄS MER

3. 12. Eventuella fosterskador till följd av magnetkameraundersökning på gravida kvinnor : En litteraturstudie med systematisk sökning

   Kandidat-uppsats, Örebro universitet/Institutionen för hälsovetenskaper

   Författare :Lina Lutecki; Elin Jonsson; [2020]
   Nyckelord :Foetus; gadolinium; magnetic resonance imaging; pregnancy; risk; Foster; gadolinium; graviditet; magnetresonanstomografi; risker;

   Sammanfattning : Background: During the recent years, magnetic resonance imaging (MRI) has evolved to become one of the most commend used diagnostic methods. Although MRI is considered safe and a good diagnostic method of foetuses and pregnant women, the research data is too small to claim that it is completely risk-free. LÄS MER

4. 13. Setup Implementation for a Direct Measurement Technique of the Magnetocaloric Effect

   Kandidat-uppsats, KTH/Materialvetenskap

   Författare :Ferdinand Posva; [2020]
   Nyckelord :Magnetocaloric effect; Direct method; Gadolinium; High entropy alloys;

   Sammanfattning : This project presents an attempt to construct a setup and implement a reliable technique for measuring the magnetocaloric effect (MCE) on various materials via a direct method for the acquisition of the data. The main objective of the latter is to produce a ∆Tadiabatic vs T graph over a reasonable temperature span (-100◦C up to 220◦C) by thermal monitoring of a magnetic material exposed to an oscillating magnetic field with a maximum strength of 1. LÄS MER

5. 14. Förekomst av Gadoliniumretention i hjärna samt dess negativa biverkningar. Litteraturstudie

   Kandidat-uppsats, Lunds universitet/Institutionen för hälsovetenskaper

   Författare :Florian Jila; [2019]
   Nyckelord :Gadolinium; nefrogen systemisk fibros; magnetisk resonanstomografi; linjära kontrastmedel; makrocykliska kontrastmedel; Gadoliniumretention; biverkningar; Medicine and Health Sciences;

   Sammanfattning : En magnetisk resonanstomografiundersökning utgör en viktig del för diagnosticering. För att kunna säkerställa diagnosen, vid dessa undersökningar, används ofta Gadoliniumbaserat kontrastmedel. Syftet med föreliggande vetenskapliga litteraturöversikt var att kartlägga Gadoliniumretention i hjärnan och dess negativa biverkningar. LÄS MER

7. 15. Software Development and Qualification Testing of a CubeSat X-ray Monitor

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Marcus Persson; [2019]
   Nyckelord :embedded software; cubesat; software; firmware; cubes; mist; x-ray; fpga; asic; weeroc;

   Sammanfattning : The CUBES (CUbesat x-ray Background Explorer using Scintillators) is a payload on the KTH student satellite MIST (MIniature STudent satellite) to evaluate Silicon Photo-multiplier technology and new scintillators such as GAGG (Gadolinium Aluminium Gallium Garnet, Gd3Al2Ga3O12) for future use in hard X-ray polarisation studies of Gamma-Ray Bursts. CUBES itself is designed to study the MIST in-orbit radiation environment by using a detector which is comprised of a silicon photomultiplier coupled to different scintillator materials. LÄS MER