Essays about: "phase-contrast"

Showing result 21 - 25 of 51 essays containing the word phase-contrast.

  1. 21. Iterative Reconstruction Algorithm for Phase-Contrast X-Ray Imaging

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Ahmad Sadek; Ruben Pozzi; [2020]
    Keywords : Computed tomography; Medical research; Phase-contrast imaging; Propagation-based imaging; SIRT; Iterative algorithm; Paganin’s phase-retrieval; Datortomografi; Medicinsk forskning; Faskontrastavbildning; Propagation-baserad avbildning; SIRT; Iterativ algoritm; Paganins fasåterhämtning;

    Abstract : Phase-contrast imaging (PCI) is a modality of medical x-ray imaging that can solve one of the main limitations with conventional attenuation-based imaging: the imaging of materials with low attenuation coefficients, such as soft tissues. A modality of PCI, Propagation-based phase-contrast imaging (PBI), was used in this project. READ MORE

  3. 22. Real-time imaging of cerebrospinal fluid flow physiology at 7T

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Olle Haglund; [2019]
    Keywords : Medicine and Health Sciences;

    Abstract : Background The cerebrospinal fluid (CSF) is involved in several diseases and patho- physiological states, such as Alzheimer’s disease and hydrocephalus. Previous studies CSF dynamics in the brain show that the flow of the CSF depends on cardiac pulsation, time of day and respiration. READ MORE

  4. 23. Microscopy techniques for studying polymer-polymer blends

    University essay from Umeå universitet/Institutionen för fysik

    Author : Sandra Mattsson; [2019]
    Keywords : CLEM; correlative light and electron microscopy; correlative microscopy; fluorescence microscopy; scanning electron microscopy; phase contrast microscopy; polymer blend; morphology; super yellow; PEO; poly ethylene oxide ; CLEM; korrelativ ljus- och elektronmikroskopi; korrelativ mikroskopi; fluorescensmikroskopi; svepelektronmikroskopi; faskontrastsmikroskopi; polymerblandning; morfologi; super yellow; PEO; poly etylenoxid ;

    Abstract : Semiconductors are used in many electronic applications, for example diodes, solar cells and transistors. Typically, semiconductors are inorganic materials, such as silicon and gallium arsenide, but lately more research and development has been devoted to organic semiconductors, for example semiconducting polymers. READ MORE

  5. 24. Optimization of dose in relation to image quality in synchrotron based tomographic lung-imaging

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Sajad Mohammed Ali; [2019]
    Keywords : Physics and Astronomy;

    Abstract : Introduction: Lung imaging with synchrotron light sources is currently a widely studied field. The image resolution and quality are remarkable and the level of detail possible to study the smallest structures, the alveoli, of the lungs cannot be obtained by any other non-invasive imaging modality with the current technology. READ MORE

  6. 25. Mapping of Chromosome Dynamics over the Bacterial Cell Cycle

    University essay from Uppsala universitet/Institutionen för cell- och molekylärbiologi

    Author : Konrad Gras; [2018]
    Keywords : ;

    Abstract : The replication of DNA, its compaction and segregation in dividingcells are challenges which all organisms are faced with. Ensuringthat these processes occur without error is essential for thesurvival of the organism. READ MORE