Sökning: "gamma camera"

Visar resultat 16 - 20 av 30 uppsatser innehållade orden gamma camera.

  1. 16. Accuracy of Quantification for Renography with 99mTc-MAG3: A Study on Virtual and Clinical Data

    Master-uppsats, Lunds universitet/Medicinsk strålningsfysik, Lund

    Författare :Irma Ceric; [2016]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Aim: Renography with 99mTc-MAG3 is one of the most common nuclear medicine examinations. It’s extensive use justifies a thorough investigation of the methods used to accurately determine the split renal function, for instance with regard to background subtraction and correction for renal depth differ- ences. LÄS MER

  3. 17. 3D Scintillation Positioning Method in a Breast-specific Gamma Camera

    Master-uppsats, KTH/Skolan för teknik och hälsa (STH)

    Författare :Beien Wang; [2015]
    Nyckelord :;

    Sammanfattning : In modern clinical practice, gamma camera is one of the most important imaging modalities for tumour diagnosis. The standard technique uses scintillator-based gamma cameras equipped with parallel-hole collimator to detect the planar position of γ photon interaction (scintillation). LÄS MER

  4. 18. 3D Scintillation Positioning Method in a Breast-specific Gamma Camera

    Master-uppsats, KTH/Medicinsk teknik

    Författare :Beien Wang; [2015]
    Nyckelord :gamma camera; breast imaging; monte carlo simulation; depth of interaction;

    Sammanfattning : In modern clinical practice, gamma camera is one of the most important imaging modalities for tumour diagnosis. The standard technique uses scintillator-based gamma cameras equipped with parallel-hole collimator to detect the planar position of γ photon interaction (scintillation). LÄS MER

  5. 19. Feasibility of Implementing the PILATUS CdTe 300k Detector as a Real Time Gamma Camera in Intraoperative Medical Imaging

    Kandidat-uppsats, Lunds universitet/MAX IV-laboratoriet; Lunds universitet/Fysiska institutionen

    Författare :Mariam Andersson; [2015]
    Nyckelord :PILATUS; CdTe; detector; medical imaging; lymphoscintigraphy; sentinel lymph node biopsy; quantum efficiency; resolution; sensitivity; semiconductor detector; gamma camera; Physics and Astronomy;

    Sammanfattning : The full-width-at-half-maximum of the point spread functions for a pixellated cadmium telluride detector exposed to gammas from a 140.5 keV Tc-99m source are modelled in GATE, at a detector-collimator distance of 5 cm, and collimator-source distances of 5 cm and 10 cm, with lead pinholes of diameter 1.0 mm, 1.5 mm, 2. LÄS MER

  7. 20. Compton Imaging with Scintillators in a Virtual Geant4 Space

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Författare :Tim Almqvist; [2015]
    Nyckelord :Compton scattering; compton imaging; gamma imaging; imaging; scintillator; scintillators; scintillator detectors; gamma camera; Compton camera; Geant4; simulation; simulations; detector simulations; Monte-Carlo; Physics and Astronomy;

    Sammanfattning : In this study the Geant4 toolkit has been used to perform Monte Carlo simulations of relatively inexpensive, inorganic, scintillator-based detectors. Full simulations of the optical photons produced via the scintillation process have been done in order to achieve realistic responses from the attached electro-optical sensors. LÄS MER