Search for dissertations about: "Breast masses"

Showing result 1 - 5 of 7 swedish dissertations containing the words Breast masses.

  2. 1. The Role of Projected Anatomy, Random Noise, and Spatial Resolution on Clinical Image Quality in Digital Mammography

    Author : Mark Ruschin; Malmö Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 3D breast imaging; Clinical physics; radiology; tomography; medical instrumentation; Klinisk fysiologi; hybrid images; dose reduction; spatial resolution; pixel size; Breast cancer; digital mammography; radiologi; tomografi; medicinsk instrumentering; breast tomosynthesis;

    Abstract : Due to the recent advances in digital detector technology, there is an increasing trend in the use of digital mammography (DM) as a concurrent modality with screen-film mammography (SFM). In order to fully realize its potential, the components of a DM system should be optimized with respect to clinical image quality in order for clinicians to make accurate diagnoses. READ MORE

  4. 2. Risk assessment and prevention of breast cancer

    Author : Mikael Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : One woman in eight develops breast cancer during her lifetime in the Western world. Measures are warranted to reduce mortality and to prevent breast cancer. Mammography screening reduces mortality by early detection. However, approximately one fourth of the women who develop breast cancer are diagnosed within two years after a negative screen. READ MORE

  5. 3. Dynamic magnetic resonance imaging of the breast : imaging features for diagnosis and prognosis of breast cancer

    Author : Botond K Szabo; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Breast neoplasm; magnetic resonance imaging; prognostic factors; survival analysis; image segmentation; artificial neural networks;

    Abstract : The general aim of the present thesis was to identify and study dynamic contrast-enhanced magnetic resonance imaging (CE-MRI) features that contribute to the diagnosis and may help in predicting prognosis in breast cancer. Study I studied the kinetic and morphological MR features and their diagnostic power were studied in a total of 92 women with 109 histopathologically verified breast lesions. READ MORE

  6. 4. Application of nuclear medicine methods in patients with breast cancer

    Author : Brigitte Wilczek; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Breast neoplasm; neoadjuvant chemotherapy; radionuelide investigation; sentinel node; SPECT;

    Abstract : While physical examination, mammography and aspiration cytology or core biopsy form the basis in the diagnosis of breast cancer, additional examinations are sometimes required in the evaluation of unclear breast masses. The study deals with the application and evaluation of different nuclear medicine techniques in the diagnosis and treatment of breast cancer. READ MORE

  7. 5. Evaluation of image quality and diagnostic accuracy in breast tomosynthesis. Comparison with digital mammography and estimates of radiation risk

    Author : Tony Svahn; Malmö Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; diagnostic accuracy; breast tomosynthesis BT ; digital mammography DM ; average glandular dose AGD ; receiver operating characteristics ROC ; risk assessment; search-model SM ; proper ROC PROPROC ;

    Abstract : Recent advances in the digital detector technology have paved the way for modalities such as two-dimensional digital mammography (DM) and three-dimensional breast tomosynthesis (BT). In this work, experimental studies were conducted to investigate the influence of reducing the average glandular dose (AGD) on detection of simulated lesions in DM and to compare the diagnostic accuracy of BT and DM. READ MORE