Avancerad sökning

Visar resultat 1 - 5 av 79 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Total body perfusion imaging with 15O-water PET

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

    Författare :Anna Åhlström; [2023]
    Nyckelord :;

    Sammanfattning : Background Positron emission tomography scanners can be used together with the PET tracer 15O-water to image perfusion in the body. It has mainly been used to image perfusion in the brain and heart. The new total-body PET scanners have a larger axial field-of-view, making imaging of the whole body possible without moving the patient. LÄS MER

  3. 2. Visualizing osteonecrosis of jaws through neutrophil elastase : [11C]NES novel PET tracer

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Institutionen för läkemedelskemi

    Författare :Amanda Dannberg; Theodora Martinez; [2023]
    Nyckelord :[11C]NES; HNC; MRONJ; neutrophil granulocytes; ORN; osteonecrosis; PET CT; radiation therapy; [11C]NES; huvud- och halscancer; MRONJ; neutrofila granulocyter; ORN; osteonekros; PET CT; strålbehandling;

    Sammanfattning : Radiation and medical drugs are used to fight head and neck cancer, but unfortunately in some cases these treatments cause development of other diseases and injuries. Osteoradionecrosis (ORN) and medical-related osteonecrosis of the jaw (MRONJ) are dreaded late complications in jaws from radiation therapy and medical drugs and cause great suffering to those affected. LÄS MER

  4. 3. Respiratory Motion Correction in PET Imaging: Comparative Analysis of External Device and Data-driven Gating Approaches

    Master-uppsats, KTH/Fysik

    Författare :Nina Lindström Söraas; [2023]
    Nyckelord :PET CT; Tomographic reconstruction; Respiratory gating techniques; Image registration; Motion correction; PET CT; Tomografisk rekonstruktion; Gating tekniker; Bildregistrering; Rörelsekorrigering;

    Sammanfattning : Positron Emission Tomography (PET) is pivotal in medical imaging but is prone to artifactsfrom physiological movements, notably respiration. These motion artifacts both degradeimage quality and compromise precise attenuation correction. LÄS MER

  5. 4. Long-Lived Particles from exotic Higgs decays at the FCC-ee

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Högenergifysik

    Författare :Magdalena Vande Voorde; [2023]
    Nyckelord :;

    Sammanfattning : This thesis presents the first sensitivity analysis for exotic Higgs boson decays at the electron-positron stage of the Future Circular Collider (FCC-ee) within the FCCAnalyses framework. The project studies the production of a Higgs boson in association with a Z boson in electron-positron collisions at a center-of-mass energy of 240 GeV, with the Higgs boson decaying into two long-lived scalars and the Z boson decaying leptonically. LÄS MER

  7. 5. Jämförelse av aktivitet i urinblåsan hos 18F-PSMA-PET patienter med och utan hydrering

    Kandidat-uppsats, Malmö universitet/Fakulteten för hälsa och samhälle (HS)

    Författare :Salma Elsaid; [2023]
    Nyckelord :Activity in urinary bladder; 18F-PSMA-PET; hydration; PET-CT prostate cancer.;

    Sammanfattning : Background: Prostate cancer is the most prevalent form of cancer affecting men.In case of biochemical recurrence, positron emission tomography (PET) targeting prostate-specific membrane antigen (PSMA) on prostate tumor cells is primarily used, in combination with computed tomography (CT), for detection and localization of recurrence. LÄS MER