Sökning: "reconstruction"

Visar resultat 11 - 15 av 997 avhandlingar innehållade ordet reconstruction.

  1. 11. Evaluation of Regularized Image Reconstruction for Clinical Positron Emission Tomography

    Författare :Elin Lindström; Mark Lubberink; Jens Sörensen; Anders Sundin; Anne Larsson Strömvall; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Positron emission tomography; PET CT; molecular imaging; image reconstruction; regularized reconstruction; quantification; oncology; neurology; cardiology; Medicinsk radiofysik; Medical Radiophysics;

    Sammanfattning : Positron emission tomography (PET) combined with computed tomography (CT) is a widely used noninvasive molecular imaging modality with a broad range of clinical applications in oncology, neurology, and cardiology. Producing imperative image quality and accurate quantification are important driving forces behind the technological advances within PET image reconstruction and system development. LÄS MER

  3. 12. Anatomic anterior cruciate ligament reconstruction - current evidence and future directions

    Författare :Kristian Samuelsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anatomic; Anterior Cruciate Ligament; Reconstruction; Score; Level of Evidence;

    Sammanfattning : Injury to the anterior cruciate ligament (ACL) is one of the most common orthopedic diagnoses. It is also one of the most researched areas in orthopedic surgery, with well over eleven thousand publications. LÄS MER

  4. 13. Revision anterior cruciate ligament reconstruction - current evidence, predictors and outcome

    Författare :Eleonor Svantesson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; anterior cruciate ligament; ACL; reconstruction; revision; medial collateral ligament; MCL; knee;

    Sammanfattning : Despite extensive research in the field of anterior cruciate ligament (ACL) reconstruction, primary ACL reconstruction failure and a high re-rupture rate remain a problem. Far too many patients experience a second devastating hit – the need to undergo a revision ACL reconstruction. LÄS MER

  5. 14. Combining analytical and iterative reconstruction in helical cone-beam CT

    Författare :Johan Sunnegårdh; Gösta Granlund; Per-Erik Danielsson; Michel Defrise; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cone-beam tomography; forward projection; image reconstruction; iterative reconstruction; ordered subsets; regularization; WFBP; Signal processing; Signalbehandling;

    Sammanfattning : Contemporary algorithms employed for reconstruction of 3D volumes from helical cone beam projections are so called non-exact algorithms. This means that the reconstructed volumes contain artifacts irrespective of the detector resolution and number of projection angles employed in the process. LÄS MER

  7. 15. Radome Diagnostics: utilizing Source Reconstruction based on Surface Integral Representations

    Författare :Kristin Persson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nondestructive testing; source reconstruction; diagnostics; radome; phase reconstruction; insertion phase delay IPD ; equivalent surface currents;

    Sammanfattning : In this thesis, an inverse source reconstruction method with great potential in radome diagnostics is presented. A radome is a cover that encloses an antenna in order to protect it from environmental influences. LÄS MER