Sökning: "mr fysik"

Visar resultat 11 - 15 av 23 uppsatser innehållade orden mr fysik.

  1. 11. The Potential of Intra-fraction Monitoring of Patient Anatomy Using a Parameterized Motion Model

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Maya Staneva; [2019]
    Nyckelord :;

    Sammanfattning : Radiotherapy aims to strike a tumour with high accuracy, but anatomic changes and internal organ motion introduce uncertainties and therefore large margins are conventionally used to compensate for this. The MR-Linac will enable target tracking prior to and during treatment which will make daily adjustments of a treatment plan possible. LÄS MER

  3. 12. Super-Resolution for Fast Multi-Contrast Magnetic Resonance Imaging

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Erik Nilsson; [2019]
    Nyckelord :Deep learning; convolutional neural networks; CNN; super-resolution; MRI;

    Sammanfattning : There are many clinical situations where magnetic resonance imaging (MRI) is preferable over other imaging modalities, while the major disadvantage is the relatively long scan time. Due to limited resources, this means that not all patients can be offered an MRI scan, even though it could provide crucial information. LÄS MER

  4. 13. Deep Learning-Based Automated Segmentation and Detection of Chondral Lesions on the Distal Femur

    Master-uppsats, KTH/Fysik

    Författare :Josefin Lindemalm Karlsson; [2019]
    Nyckelord :Deep Learning; Machine Learning; automated segmentation; MRI; chondral lesions; articular cartilage; Deep Learning; Maskininlärning; automatiserad segmentering; MRI; broskskador; ledbrosk;

    Sammanfattning : Articular chondral lesions in the knee joint can be diagnosed at an early stage using MRI. Segmenting and visualizing lesions and the overall joint structure allows improved communication between the radiologist and referring physician. It can also be of help when determining diagnosis or conducting surgical planning. LÄS MER

  5. 14. Investigating the Distance to Display Holographic Shelf Information in Retailing

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Mattias Johansson; [2018]
    Nyckelord :;

    Sammanfattning : This paper explores how mixed reality (MR) can be implemented in a brick-and-mortar store. More specifically, it explores at what distances information about shelves should be shown to give users the best possible experience. LÄS MER

  7. 15. Investigation of Attenuation Corrections for External Hardware in PET/MR Imaging

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :August Holmberg; [2016]
    Nyckelord :;

    Sammanfattning : .... LÄS MER