Search for dissertations about: "Density contrast"

Showing result 11 - 15 of 340 swedish dissertations containing the words Density contrast.

  2. 11. Fat contamination of pericardial suction blood in cardiac surgery : clinical and experimental studies in perspectives of transfusion logistics

    Author : Micael Appelblad; Gunnar Engström; Krister Lindmark; Anders Jeppsson; Umeå universitet; []
    Keywords : Surgery; blood transfusion; cardiopulmonary bypass; pericardial suction blood; fat contamination; lipid microemboli; density separation; surface adsorption; Kirurgi; Surgery; kirurgi;

    Abstract : Introduction: During cardiac surgery aided by cardiopulmonary bypass (CPB) the autotransfusion of pericardial suction blood (PSB) is regarded mandatory to limit allogeneic blood exposure. PSB is however proposed as a source of lipid microemboli and to contribute to brain damage. READ MORE

  4. 12. Optimization of breast tomosynthesis: Computer simulations of image acquisition and glandular dose

    Author : Hannie Förnvik; Malmö Medicinsk strålningsfysik; []
    Keywords : breast tomosynthesis; Monte Carlo simulation; acquisition parameters; software breast phantom; microcalcifications; breast density; glandular dose; glandular distribution;

    Abstract : Breast tomosynthesis (BT) is an X-ray imaging technique recently introduced as an alternative or complement to standard digital mammography (DM) in breast imaging and breast cancer screening. In BT, a set of projection images is acquired over a limited angular range and reconstructed into a volume of slice images. READ MORE

  5. 13. Hypertension, atherosclerosis and fracture risk - observational investigations with focus on antihypertensive therapy

    Author : Tove Bokrantz; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epidemiology; hypertension; antihypertensive agents; fractures; peripheral arterial disease; bone density;

    Abstract : Aim: To investigate associations between hypertension, arteriosclerotic disease, and fracture risk in adults and the elderly, with a certain focus on how specific antihypertensive drug treatments in patients with high blood pressure might affect the risk for fractures. Methods and results: In Study I and II, the associations between different antihypertensive treatments and fracture risk were investigated in a cohort of about 60. READ MORE

  6. 14. Effects of growth hormone on cardiovascular risk factors and atherosclerosis

    Author : Maria Leonsson Zachrisson; Göteborgs universitet; []
    Keywords : growth hormone; pituitary deficiency; dietary fat; cholesterol; low density; lipoprotein; intima-media thickness; IL-6; CRP; TNF-á;

    Abstract : Hypopituitary patients with growth hormone (GH) deficiency (GHD) have increasedmorbidity and mortality from cardiovascular disease (CVD). GH treatment has both beneficialand potentially negative cardiovascular effects. READ MORE

  7. 15. Testosterone and the postmenopausal breast : aspects on cell proliferation and mammographic density

    Author : Marie Hofling; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Menopause; testosterone; breast cell proliferation; fine needle aspiration biopsy; mammographic density; Syndecan-1; androgen receptor; cynomolgus macaques;

    Abstract : The breast is a target organ for sex steroids, and hormonal treatments have been associated with a risk of breast cancer. There is increasing interest in androgen treatment for postmenopausal women. Testosterone has been shown to improve bone density, body composition, mood, psychosexual function and general well-being. READ MORE