Sökning: "Mammography"

Visar resultat 6 - 10 av 105 avhandlingar innehållade ordet Mammography.

  1. 6. Characterization and Optimization of Silicon-strip Detectors for Mammography and Computed Tomography

    Författare :Han Chen; Mats Danielsson; cheng xu; Andrew Maidment; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mammography; anti-scatter grid; photon-counting; spectral computed tomography; silicon strip; ASIC; energy resolution; Compton scatter; material decomposition; K-edge imaging; Medical Technology; Medicinsk teknologi;

    Sammanfattning : The goal in medical x-ray imaging is to obtain the image quality requiredfor a given detection task, while ensuring that the patient dose is kept as lowas reasonably achievable. The two most common strategies for dose reductionare: optimizing incident x-ray beams and utilizing energy informationof transmitted beams with new detector techniques (spectral imaging). LÄS MER

  3. 7. Mammography Screening-Factors affecting Tumour Stage and Outcome

    Författare :Åsa Olsson; Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Screening mammography; obesity; breast density. length bias; breast cancer mortality;

    Sammanfattning : The aim of this thesis was to investigate screening mammography in relation to factors affecting tumour stage and outcome. The main focus was on obesity, tumour biology and breast density. We hypothesized that obese and overweight women could benefit more from screening detection than normal weight women. LÄS MER

  4. 8. Breast tomosynthesis – new perspectives on breast cancer screening

    Författare :Kristina Lång; Malmö Diagnostisk radiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Breast cancer; Breast tomosynthesis; Mammography; Breast cancer screening; Cancer detection rate; Recall rate; False positive rate; Image perception; Reading time; Lesion visualisation; Detection error;

    Sammanfattning : Abstract: Mammography is currently the established method in breast cancer screening, although the sensitivity is known be affected by overlapping tissue concealing tumours. Breast tomosynthesis takes advantage of multiple exposures at different angles reducing the negative effect of obscuring tissue. LÄS MER

  5. 9. Silicon Strip Detectors for Scanned Multi-Slit X-Ray Imaging

    Författare :Mats Lundqvist; KTH; []
    Nyckelord :x-ray; silicon strip detectors; mammography; multi-slit; scanned slit; edge-on;

    Sammanfattning : Digital imaging systems for medical applications must bebased upon highly efficient detectors to ensure low patientdose. This is particularly important in screening mammographybecause of the large number healthy women that is examined. Amammography system must also provide high spatial and contrastresolution. LÄS MER

  7. 10. Breast cancer risk assessment and detection in mammograms with artificial intelligence

    Författare :Yue Liu; Kevin Smith; Hossein Azizpour; Fredrik Strand; Anders Eklund; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mammography; AI; Breast cancer risk; Breast cancer detection; Mammografi; AI; Bröstcancerrisk; Upptäckt av bröstcancer; Datalogi; Computer Science;

    Sammanfattning : Breast cancer, the most common type of cancer among women worldwide, necessitates reliable early detection methods. Although mammography serves as a cost-effective screening technique, its limitations in sensitivity emphasize the need for more advanced detection approaches. LÄS MER