Sökning: "vascular resistance"

Visar resultat 11 - 15 av 174 avhandlingar innehållade orden vascular resistance.

1. 11. Lung Transplantation: Clinical and experimental studies

   Författare :Leif Eriksson; allergologi och palliativ medicin Lungmedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Respiratory system; Follow up Studies; Vascular Resistance; Intensive Care; Induced; Hypothermia; Swine; Extracorporeal Circulation; Lung Transplantation; Organ Preservation; Andningsorganen; Immunology; serology; transplantation; Immunologi; serologi;

   Sammanfattning : During the past 15 years lung transplantation has been established as a therapeutic option for patients with end-stage pulmonary disease. The results have improved over time and some transplantation centers now show 1-year survival rates above 80%. LÄS MER

3. 12. 4D flow MRI and modelling to assess cerebral arterial hemodynamics : method development and evaluation, with implementation in patients with symptomatic carotid stenosis

   Författare :Madelene Holmgren; Anders Eklund; Jan Malm; Anders Wåhlin; Sara Qvarlander; Ronnie Wirestam; Umeå universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 4D flow MRI; carotid stenosis; cerebral blood flow; cerebral arterial compliance; cerebrovascular resistance; circleof Willis; computational fluid dynamics; magnetic resonance imaging; stroke; vascular disease; Neurology; neurologi;

   Sammanfattning : Blood flow measurements are important for understanding the development of cerebrovascular diseases. With 4D flow magnetic resonance imaging (4D flow MRI), simultaneous velocity measurements are obtained in all cerebral arteries in a scan of about ten minutes. However, 4D flow MRI is a relatively new technique. LÄS MER

4. 13. Capillary and interstitial transport of fluid and solutes across the peritoneal membrane

   Författare :Ola Carlsson; Institutionen för experimentell medicinsk vetenskap; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; vascular resistance.; capillary pressure; aquaporins; Capillary permeability; vesicular transport; Urology; nephrology; Urologi; nefrologi;

   Sammanfattning : According to the three-pore model of peritoneal transport the major exchange pathway between the blood and the peritoneal cavity is represented by “small pores”, permeable to small solutes and water. Osmotically induced fluid flow, as during peritoneal dialysis (PD), is postulated to occur to a great extent through a water-only pathway, whereas proteins are predicted to reach the peritoneal cavity by unidirectional convection across “large pores”. LÄS MER

5. 14. Regulation of vascular tone in myometrial resistance arteries in normal pregnancy and preeclampsia

   Författare :Karolina Kublickiene; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Atrial natriuretic peptide; Blood vessels; Endothelin-l; Endothelin receptors; Myogenic tone; Myometrial Arteries; Preeclampsia; Pregnancy; Nitric oxide; Shear stress; Vascular endothelium; Vascular smooth muscle .;

   Sammanfattning : Background: Normal pregnancy is characterized by the occurrence of substantial vasodilatation. Pressure responsiveness and vascular reactivity to administered vasoconstrictors undergo considerable attenuation. These circulatory changes are essential to maintain adequate oxygen and nutrient delivery to the placenta and thus to the fetus. LÄS MER

7. 15. Epidemiological, mechanistic and genetic aspects of vascular ageing and arterial stiffness in the population

   Författare :Mikael Gottsäter; Internmedicin - epidemiologi; []
   Nyckelord :Vascular ageing; Arterial stiffness;

   Sammanfattning : The core feature of vascular ageing is the age-associated stiffening of the large, elastic arteries, or arteriosclerosis. This results in a diminished volume-buffering function and is therefore central for the increase in systolic blood pressure and pulse pressure seen with advancing age. LÄS MER