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1.
  • Sarve, Hamid, et al. (författare)
  • Registration of 2D Histological Images of Bone Implants with 3D SRμCT Volumes
  • 2008
  • Ingår i: Advances in Visual Computing : 4th International Symposium, ISVC 2008, Las Vegas, NV, USA, December 1-3, 2008. Proceedings, Part I. - Heidelberg/Berlin : Springer. - 978-3-540-89638-8 ; s. 1071-1080
  • Konferensbidrag (refereegranskat)abstract
    • To provide better insight in bone modeling and remodeling around implants, information is extracted using different imaging techniques. Two types of data used in this project are 2D histological images and 3D SRμCT (synchrotron radiation-based computed microtomography) volumes. To enable a direct comparison between the two modalities and to bypass the time consuming and difficult task of manual annotation of the volumes, registration of these data types is desired.In this paper, we present two 2D-3D intermodal rigid-body registration methods for the mentioned purpose. One approach is based on Simulated Annealing (SA) while the other uses Chamfer Matching (CM). Both methods use Normalized Mutual Information for measuring the correspondence between an extracted 2D-slice from the volume and the 2D histological image whereas the latter approach also takes the edge distance into account for matching the implant boundary. To speed up the process, part of the computations are done on the Graphic Processing Unit.The results show that the CM-approach provides a more reliable registration than the SA-approach. The registered slices with the CM-approach correspond visually well to the histological sections, except for cases where the implant has been damaged.
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4.
  • Bengtsson, Ulrika, et al. (författare)
  • Development of a mobile phone self-report system for persons with hypertension: focus group interviews with patients and providers
  • 2013
  • Ingår i: Kardiovaskulära Vårmötet 2013.
  • Konferensbidrag (refereegranskat)abstract
    • Introduction: Hypertension is a risk factor for cardiovascular disease for which poor adherence to therapy becomes a substantial threat to health. Major efforts have been made to explore reasons for poor adherence but few successful interventions have been designed. There is a need for effective strategies designed to facilitate an increased understanding for the complexity of hypertension and treatment by strengthening of patient participation as well as patient empowerment. Purpose / Methods: The aim of this study was to explore and describe relevant aspects of hypertension and hypertension treatment, from the perspective of persons with hypertension and health care providers. Focus group interviews were performed with 15 persons with hypertension and 12 health care providers and analysed according to thematic analysis. Results: Persons with hypertension perceived trust, relationship to providers, well-being and prevention of complications as important aspects of hypertension care. Further they sought to understand the interplay between symptoms and variation of blood pressure. The providers emphasised accessibility, clear and consistent counselling, prevention of complications and educational efforts but doubted patients’ ability to be participating partners in care. Conclusion: The study presents aspects that persons with hypertension and health care providers deem important in hypertension management. Our finding provides input for future outcome measures, such as self-reports and may serve as a foundation for the development of a self-report system for persons with hypertension. They may further facilitate patient empowerment by increasing the understanding of hypertension and its’ treatment, from a person-centred perspective.
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5.
  • Larsson, Per-Olof, 1948- (författare)
  • Arbete för personer med intellektuella funktionshinder
  • 2009
  • Ingår i: Forskningspresentation vid Arbetslivskonferens – Ett arbetsliv för alla 18-19 mars 2009 Mimerskolan i Umeå anordnad av Luleå kommun, Umeå Universitet, Regionalt Utvecklingscentrum vid Umeå Universitet och Umeå Kommun..
  • Konferensbidrag (övrigt vetenskapligt)
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6.
  • Larsson, Per-Olof, 1948- (författare)
  • Arbete för personer med utvecklingsstörning
  • 2009
  • Ingår i: Forskningspresentation ”Unga med Funktionshinder” med Arbetsförmedlingen, Socialtjänsten och Försäkringskassan i Göteborg Region Väster 5 mars 2009 om "Arbetsgivarens motiv att anställa och arbetskamraternas motiv att integrera personer med intellektuellt funktionshinder på arbetsplatsen"..
  • Konferensbidrag (övrigt vetenskapligt)
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10.
  • Karlsson, N, et al. (författare)
  • Risk of disability pension in relation to sex and age in a Swedish county 1985-1996; A 12-year prospective cohort study.
  • 2004
  • Konferensbidrag (övrigt vetenskapligt)abstract
    • BackgroundNumber of persons on disability pension is increasing in many countries. So far the nowledge on risk for disability pension in a population over time is very limited.AimTo estimate the cumulative probability of disability pension among women and men in different age groups over a 12-year period.MethodsA population-based prospective longitudinal cohort study. All the 229,864 sick-insured individuals, aged 16–64 years in the Swedish County of Östergötland in 1984 who then had no disability or old age pension were followed to 1996. The following data was obtained for each of the 12 years for all the individuals: disability pension status, old-age retirement status, and date of death. The probability of being granted disability pension over the study period was estimated using life tables. The risk for disability pension was modelled as a function of sex and age using a Cox's proportional hazards model. 95% confidence intervals were calculated.ResultsThe cumulative estimates of the probability (in %) of being granted disability pension over 5 years adjusted for mortality and age retirement were, respectively 0.3, 0.9, 1.8, 6.3, and 22.8 for men and 0.4, 1.4, 3.2, 9.2, and 21.5 for women in the age groups 16–24, 25–34, 35–44, 45–54, and 55–64 years. The probabilities increased much over the years, more so for the women. The hazard ratios of disability pension for women vs. men were 1.6 (1.4–1.8), 1.9 (1.7–2.0), 1.7 (1.6–1.8), 1.2 (1.2–1.3), and 0.9 (0.9–0.9) in the same five age groups.ConclusionsThere were significant both age and sex differences in the risk of being granted disability pension. The former was expected but that the later was so large and differed with ages was not expected. Except for the age group 55–64 years, women had a higher risk of disability pension than men. More knowledge is needed on factors affecting this.
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