Sökning: "Gamma camera imaging"

Visar resultat 6 - 10 av 26 avhandlingar innehållade orden Gamma camera imaging.

1. 6. Improvements of SPECT by a new collimator design and simultaneous transmission-emission tomography

   Författare :Shahrokh Kimiaei; Marija Ivanovic; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gamma camera; SPECT; Emission tomography; Transmission tomography; Planar-concave collimators; Spatial resolution; Other physics; Övrig fysik; medicinsk strålningsfysik; Medical Radiation Physics;

   Sammanfattning : SPECT (Single Photon Emission Computed Tomography) and planar scintigraphy are the most established and world wide-spread nuclear medicine imaging techniques for clinical use today. SPECT is a tomographic technique that allows 3-D visualization of biochemical processes or physiological flow in the human body by external detection of photons from an administered radiopharmaceutical. LÄS MER

3. 7. Affibody molecules targeting the epidermal growth factor receptor for tumor imaging applications

   Författare :Mikaela Friedman; Stefan Ståhl; Fredrik Nilsson; James S. Huston; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Affibody; affinity maturation; phage display selection; EGFR; molecular imaging; protein engineering; tumor targeting; Bioengineering; Bioteknik;

   Sammanfattning : Tumor targeting and molecular imaging of protein markers specific for or overexpressed in tumors can add useful information in deciding upon treatment and assessing the response to treatment for a cancer patient. The epidermal growth factor receptor (EGFR) is one such tumor-associated receptor, which expression is abnormal or upregulated in various cancers and associated with a poor patient prognosis. LÄS MER

4. 8. Electropermeabilization in Experimental Tumour Treatment: Dosimetry and Tissue Effects

   Författare :Per Engström; Lund Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; liver; electroporation; ischemia; Electropermeabilization; ECT; Tumor; 111-In-BLMC; 99m-Tc-DTPA; glioma; rat; electric pulses; Impedance spectrometry; treatment; Physics; Fysik;

   Sammanfattning : Short, electric high-voltage pulses can be used to transiently increase the permeability of cell membranes without significant loss of cell viability. During this period of time, extracellular and normally non-permeant, molecules are accessed the cytoplasm and the cell nucleus. LÄS MER

5. 9. Methods for image-based dosimetry and radiobiological modelling in radionuclide therapy

   Författare :Johan Gustafsson; Lund Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; radionuclide therapy; dosimetry; biologically effective dose; 177Lu-DOTATATE;

   Sammanfattning : In radionuclide therapy (RNT), radioactive pharmaceuticals are administered for therapeutic purposes. Dosimetry, i.e. the estimation of the absorbed dose to various targets, can potentially lead to a better understanding of the therapeutic effects in RNT and allow for individualization of the therapy. LÄS MER

7. 10. Pharmacokinetics and dosimetry in intraperitoneal radioimmunotherapy with 211At

   Författare :Elin Cederkrantz; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; astatine-211; radioimmunotherapy; alpha-emitter; ovarian cancer; MX35; pharmacokinetics; dosimetry; effective dose;

   Sammanfattning : The prognosis for patients diagnosed with disseminated cancer is often poor. Radioimmunotherapy (RIT) is a new approach to treat disseminated disease. The aim is to target tumor cells with monoclonal antibodies (mAbs) labeled with radionuclides which release cytotoxic particle radiation upon decay. The radionuclide 211At, with half-life 7. LÄS MER