Sökning: "conjugate view"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden conjugate view.

  1. 1. Image Processing for Quantitative Scintillation-Camera Imaging. Application to Radionuclide Therapy

    Författare :Katarina Sjögreen Gleisner; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tomografi; radiologi; Klinisk fysiologi; medical instrumentation; tomography; radiology; 131-I; Clinical physics; SPECT; conjugate-view; volume quantification; activity quantification; image registration; image segmentation; medicinsk instrumentering; Nuclear medicine; radiobiology; Nukleärmedicin; radiobiologi; Radiopharmaceutical technology; Radiofarmaceutisk teknik;

    Sammanfattning : Individual-based determinations of the absorbed dose in radionuclide therapy largely rely on absolute measurement of the activity distribution and its redistribution over time. Scintillation-camera imaging is the most commonly employed measuring technique, applied in planar or SPECT mode, sometimes in combination with structural images from CT. LÄS MER

  3. 2. Activity quantification based on scintillation camera imaging - Application to 111In/90Y radioimmunotherapy

    Författare :David Minarik; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radioimmunotherapy; bremsstrahlung imaging; activity quantification; SPECT; conjugate view; Yttrium;

    Sammanfattning : Radionuclide therapy (RNT), is important for the treatment of certain benign and malignant diseases. 90Y-Zevalin™ therapy has become an established method of treating patients with non-Hodgkin B-cell lymphoma. LÄS MER

  4. 3. Therapy with 177Lu-octreotate - pharmacokinetics, dosimetry and kidney toxicity

    Författare :Maria Larsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PRRT; 177Lu-octreotate; 111In-octreotide; dosimetry; biokinetics; scintigraphy; conjugate view method; renal function; renal toxicity; lysine; DMSA; 99mTc-DTPA; 99mTc-DMSA;

    Sammanfattning : 177Lu-octreotate is used for treatment of patients with somatostatin receptor expressing neuroendocrine tumors in some clinics using a standard schedule. Renal and bone marrow toxicity are the main limiting factors. LÄS MER

  5. 4. Internal Dosimetry Development and Evaluation of Methods and Models

    Författare :Lena M Jönsson; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tomografi; Klinisk fysiologi; medical instrumentation; tomography; radiology; Clinical physics; crypt cells; intestine; radionuclide; scintillation camera; sestamibi; activity quantification; conjugate view method; Monte Carlo simulation; internal dosimetry; Nuclear medicine; radiobiology; Nukleärmedicin; radiobiologi; medicinsk instrumentering; radiologi;

    Sammanfattning : Radionuclide therapy requires patient-specific planning of the absorbed dose to target volumes, in most cases tumours, in order to achieve an expected biological effect, taking into account that the absorbed doses to normal organs and tissues should be kept as low as reasonably achievable. Therefore, the calculation of absorbed doses has to be as accurate as possible. LÄS MER

  7. 5. Parallelizing the Method of Conjugate Gradients for Shared Memory Architectures

    Författare :Henrik Löf; Jarmo Rantakokko; Erik Hagersten; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap; Scientific Computing;

    Sammanfattning : Solving Partial Differential Equations (PDEs) is an important problem in many fields of science and engineering. For most real-world problems modeled by PDEs, we can only approximate the solution using numerical methods. Many of these numerical methods result in very large systems of linear equations. LÄS MER