Sökning: "spect gammakamera"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden spect gammakamera.

  1. 1. Activity quantification of 177Lu using a 360◦ CZT gamma camera - comparison with a dual-head Anger camera

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Albin Lindvall; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background and Aim: New SPECT cameras that use CZT detectors in a 360◦ configuration has recently been introduced. Together with Bayesian reconstruction methods employing Median Root Prior (MRP) and Relative Difference Prior (RDP), this constitutes an alternative to Anger-based SPECT for activity quantification. LÄS MER

  3. 2. Feasibility of Dynamic SPECT-Renography with Automated Evaluation Using a Deep Neural Network

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Viktor Rogowski; [2021]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Introduction: Renography is a standard diagnostic examination that evaluates renal function, renal pelvic dilatation and urinary obstruction. Renography is performed by injecting a radiopharmaceutical (predominately 99mTc-MAG3) and using gamma camera to image the biodistribution in a dynamic sequence. LÄS MER

  4. 3. Development of an MRI-compatible Multi-compartment Phantom for Dynamic Studies

    Kandidat-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Jonas Ström Seez; Frederick Holmer Fann; [2020]
    Nyckelord :Dynamic studies; Dynamic phantom; Multi-compartment analysis; MRI compatible; PET; SPECT; Gamma camera; Nuclear medicine; Dynamiska studier; Dynamisk fantom; Multi-kammar analys; MRI kompatibel; PET; SPECT; Gammakamera; Nuklearmedicin;

    Sammanfattning : Medical imaging based on radioactive tracers exposes the patient to radiation. For this reason, a phantom is preferably used for non-clinical studies such as routine quality assurance and research. The aim of this project was to design, build and test a multi-compartment phantom to be used in dynamic SPECT/CT, PET/CT and PET/MRI studies. LÄS MER

  5. 4. Quantification of I-131 Activity from Gamma Camera Images of Thyroid Cancer Patients

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Frida Westerbergh; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : BACKGROUND: Radioiodine (131I) has been used in thyroid cancer treatments for many years, and has demonstrated good results with regards to disease management. Radioiodine therapy is however partially empirical, as not very much is known concerning radiation dosimetry. LÄS MER

  7. 5. Optimization of activity level in rCBF SPECT using the observer study Visual Grading Regression

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Sofia Kvernby; [2012]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : The purpose of this work is to assess the activity level needed to achieve satisfactory diagnostic information in regional cerebral blood flow single photon emission computed tomography (rCBF SPECT) by introducing a new evaluation method to be used for and hopefully facilitate optimization studies in nuclear medicine in the future. The purpose is further to perform a visual grading study and investigate the use of this new evaluation method, Visual Grading Regression (VGR). LÄS MER