Search for dissertations about: "MEDICIN Fysiologi och farmakologi Radiologisk forskning"

Showing result 1 - 5 of 66 swedish dissertations containing the words MEDICIN Fysiologi och farmakologi Radiologisk forskning.

  1. 1. Positron Emission Tomography (PET) Studies in Anxiety Disorders

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Åsa Michelgård Palmquist; Mats Fredrikson; Lars von Knorring; Hans Ågren; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Positron emission tomography; PET; amygdala; fear; anxiety; anxiety disorders; specific phobia; social phobia; posttraumatic stress disorder; PTSD; regional cerebral blood flow; rCBF; substance P; SP; neurokinin 1 receptor; NK1; GR205171; STAI-S; MEDICINE Psychiatry; MEDICIN Psykiatri; MEDICINE Morphology; cell biology; pathology Cell biology Neurobiology; MEDICIN Morfologi; cellbiologi; patologi Cellbiologi Neurobiologi; MEDICINE Morphology; cell biology; pathology Cell biology Neuroscience; MEDICIN Morfologi; cellbiologi; patologi Cellbiologi Neurovetenskap; MEDICINE Physiology and pharmacology Physiology Experimental brain research; MEDICIN Fysiologi och farmakologi Fysiologi Experimentell hjärnforskning; MEDICINE Physiology and pharmacology Physiology Molecular neurobiology; MEDICIN Fysiologi och farmakologi Fysiologi Molekylär neurobiologi; MEDICINE Physiology and pharmacology Radiological research Radiation biology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Strålningsbiologi; MEDICINE Physiology and pharmacology Physiology Neurobiology; MEDICIN Fysiologi och farmakologi Fysiologi Neurobiologi; NATURAL SCIENCES Biology Cell and molecular biology Neurobiology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Neurobiologi;

    Abstract : Anxiety disorders are very common and the primary feature is abnormal or inappropriate anxiety. Fear and anxiety is often mediated by the amygdala, a brain structure rich in substance P (SP) and neurokinin 1 (NK1) receptors. READ MORE

  2. 2. Spectral Mammography with X-Ray Optics and a Photon-Counting Detector

    University dissertation from Stockholm : KTH

    Author : Erik Fredenberg; Mats Danielsson; Björn Cederström; Jeffrey H. Siewerdsen; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mammography; x-ray optics; photon counting; spectral shaping; spectral imaging; collimation; radiation dose; signal-to-noise ratio; quantum noise; anatomical noise; spatial resolution; x-ray flux; ; TECHNOLOGY; TEKNIKVETENSKAP; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik; TECHNOLOGY Engineering physics Optical physics; TEKNIKVETENSKAP Teknisk fysik Optisk fysik; TECHNOLOGY Engineering physics Other engineering physics; TEKNIKVETENSKAP Teknisk fysik Övrig teknisk fysik; TECHNOLOGY Electrical engineering; electronics and photonics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik; TECHNOLOGY Other technology Medical engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Medicinsk teknik; MEDICINE Physiology and pharmacology Radiological research; MEDICIN Fysiologi och farmakologi Radiologisk forskning;

    Abstract : Early detection is vital to successfully treating breast cancer, and mammography screening is the most efficient and wide-spread method to reach this goal. Imaging low-contrast targets, while minimizing the radiation exposure to a large population is, however, a major challenge. READ MORE

  3. 3. Molecular Radionuclide Imaging Using Site-specifically Labelled Recombinant Affibody Molecules Preparation and Preclinical Evaluation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sara Ahlgren; Vladimir Tolmachev; Anna Orlova; Göran Hedenstierna; Joachim Feldwisch; Raymond Reilly; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; molecular radionuclide imaging; Affibody molecules; HER2; cancer detection; radiolabelling; technetium; indium; cobalt; SPECT; PET; MEDICINE Surgery Oncology; MEDICIN Kirurgi Onkologi; MEDICINE Physiology and pharmacology Radiological research Diagnostic radiology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Diagnostisk radiologi; MEDICINE Physiology and pharmacology Radiological research Radiation biology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Strålningsbiologi; Biomedical Radiation Science; Biomedicinsk strålningsvetenskap; Medicinsk vetenskap; Medical Science;

    Abstract : Radionuclide molecular imaging is an emerging multidisciplinary technique that is used in modern medicine to visualise diseases at cellular and molecular levels. This thesis is based on five papers (I-V) and focuses on the development of site-specific radiolabelled recombinant anti-HER2 Affibody molecules and preclinical evaluations in vitro and in vivo of the labelled conjugates. READ MORE

  4. 4. Power Doppler - Principles and Potential Clinical Applications

    University dissertation from Uppsala : Institutionen för onkologi, radiologi och klinisk immunologi

    Author : Anders Nilsson; Uppsala universitet.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Ultrasonography; Doppler studies; Power Doppler; Volume flow; Radiologisk forskning; MEDICINE Physiology and pharmacology Radiological research; MEDICIN Fysiologi och farmakologi Radiologisk forskning;

    Abstract : The purpose of this work was to: a) Determine whether the amount of colour in a power Doppler image is dependent on the angle between the examined vessel and the soundbeam and/or on the velocity of the flow within the vessel; b) Investigate if a dependency on flow velocity could be used for the detection of volume flow differences and c) Define clinical applications utilising the improved sensitivity to low flow of PD.In the experimental studies (study I and II) a silicon tube in a water bath was insonated, the insonation angle and the volume flow changed and the resulting images stored, transferred to a personal computer and analysed with regard to the amount of colour present in the image. READ MORE

  5. 5. Degradation, Metabolism and Relaxation Properties of Iron Oxide Particles for Magnetic Resonance Imaging

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Karen Briley Saebo; Uppsala universitet.; [2004]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Magnetic Resonance Imaging; contrast agents; iron oxide particles; metabolism; relaxation mechanisms; Radiologisk forskning; MEDICINE Physiology and pharmacology Radiological research; MEDICIN Fysiologi och farmakologi Radiologisk forskning;

    Abstract : Whereas the effect of size and coating material on the pharmacokinetics and biodistribution of iron oxide based contrast agents are well documented, the effect of these parameters on liver metabolism has never been investigated. The primary purpose of this work was to evaluate the effect of iron oxide particle size and coating on the rate of liver clearance and particle degradation using a rat model. READ MORE