Sökning: "diagnostic imaging"

Visar resultat 16 - 20 av 421 avhandlingar innehållade orden diagnostic imaging.

1. 16. Imaging aspects of mild cognitive impairment and subjective cognitive decline. Application of visual rating scales in clinical practice

   Författare :Claes Håkansson; Lund Diagnostisk radiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurocognitive disorders; Diagnostic imaging; Visual rating scales;

   Sammanfattning : .... LÄS MER

3. 17. New perspectives on imaging of urinary tract infections in infants

   Författare :Yvonne Simrén; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Urinary tract infection; Ultrasound; Diffusion weighted imaging; Diffusion tensor imaging;

   Sammanfattning : Background: Urinary tract infection (UTI) is a common disease in infants that may lead to renal damage with an increased risk of long term complications. The diagnostic imaging aims to identify risk factors as underlying urinary tract abnormalities and renal involvement of the infection for prevention of long term adverse outcome. LÄS MER

4. 18. Magnetic resonance imaging with ultrashort echo time as a substitute for X-ray computed tomography

   Författare :Adam Johansson; Tufve Nyholm; Karlsson Mikael; James Balter; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetic resonance imaging; computed tomography substitute; ultrashort echo time; parallel imaging; radial imaging; radiofysik; radiation physics;

   Sammanfattning : Radiotherapy dose calculations have evolved from simple factor based methods performed with pen and paper, into computationally intensive simulations based on Monte Carlo theory and energy deposition kernel convolution.Similarly, in the field of positron emission tomography (PET), attenuation correction, which was originally omitted entirely, is now a crucial component of any PET reconstruction algorithm. LÄS MER

5. 19. Ballistic Imaging of Transient Phenomena in Turbid Media

   Författare :David Sedarsky; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mie scattering; Laser Combustion Diagnostics; Imaging; Spray Diagnostics; Turbid Media; Velocity;

   Sammanfattning : Ballistic imaging (BI) was developed as an optical diagnostic capable of ascertaining velocity and spatial information within dense sprays with relevance to liquid-fuel injection and combustion. This development includes a full model of light scattering within the complete imaging system, enabling the performance of the instrument to be examined, optimized and quantified. LÄS MER

7. 20. Optical spectroscopy and fluorescence imaging for cancer diagnostics

   Författare :Pontus Svenmarker; Atomfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biomedical optics; Diffuse-reflection spectroscopy; Upconverting nanoparticles; Inverse problem; Fluorescence; Tomography; Imaging; Scattering media; Photon migration; Fysicumarkivet A:2012:Svenmarker;

   Sammanfattning : This work presents optical methods for diagnosing cancer. A complementary method for diagnosing eye cancer was investigated using a technique developed within this work named transscleral optical spectroscopy (TOS). LÄS MER