Search for dissertations about: "densitometry"

Showing result 1 - 5 of 26 swedish dissertations containing the word densitometry.

2. 1. New methods to evaluate the effect of conventional and modified crosslinking treatment for keratoconus

   Author : Jeannette Beckman Rehnman; Christina Lindén; Anders Behndig; Per Hallberg; Jesper Hjortdal; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Keratoconus; crosslinking; light scattering; densitometry; keratometry; hysteresis; intraocular pressure; oftalmiatrik; Ophtalmology;

   Abstract : Background: Today corneal crosslinking with ultraviolet-A photoactivation of riboflavin is an established method to halt the progression of keratoconus. In some cases, when the refractive errors are large and the visual acuity is low, conventional corneal crosslinking may not be sufficient. READ MORE

4. 2. Primary Hyperparathyroidism - Aspects on skeletal Involvemnt and PTH levels after Surgery

   Author : Erik Nordenström; Lund Kirurgi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; traumatology; Kirurgi; ortopedi; traumatologi; orthopaedics; Surgery; PTH infusion; PTH levels; Densitometry; Bone density; Primary hyperparathyroidism; Skeletal;

   Abstract : The aim of this thesis was to evaluate risk factors for fractures in patients with primary hyperparathyroidism (pHPT), to study the association between preoperative variables and postoperative changes in bone density and to investigate long-term changes and peripheral PTH sensitivity in patients with elevated PTH levels after surgery. 203 pHPT patients were investigated with regard to clinical and biochemical variables and bone density. READ MORE

5. 3. Severe and moderate alpha-1-antitrypsin deficiency at the age of 30

   Author : Elisabeth Bernspång; allergologi och palliativ medicin Lungmedicin; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cohort; screening; alpha-1-antitrypsin; lung function; CT densitometry; liver;

   Abstract : Alpha-1-antitrypsin (AAT) is a glycoprotein synthesised in the liver. Its main role is to protect lung tissue from destruction by neutrophil elastase. In severe (PiZZ) AAT deficiency, there is an increased risk of emphysema, especially in smokers. READ MORE

6. 4. Bone Mineral Density Determination in Children. Evaluation of a novel method and application to Duchenne muscular dystrophy

   Author : Ann-Charlott Söderpalm; Göteborgs universitet; []
   Keywords : adolescents; age- and gender-matched; Becker; bone densitometry; bone markers; bone mineral density; calciotropic hormones; children; DXA; DXL; Duchenne; glucocorticoids; muscular dystrophy; normative; reference values; skeleton;

   Abstract : Aims: The overall aims of this thesis were to evaluate the dual-energy X-ray and laser (DXL) method for bone densitometry measurements of the calcaneus in children, to provide reference data for bone mineral density (BMD) in the heel bone in young children and to apply the DXL technique to patients with Duchenne muscular dystrophy (DMD) and conduct a survey about bone health of DMD patients. Study populations and methods: The DXL Calscan method was modified and adapted for measurements in children and applied to bone densitometry in all subsequent studies. READ MORE

7. 5. Hips at risk osteoporosis and prevention of hip fractures

   Author : Anna Ekman; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Bone Densitometry; external hip protectors; hip fracture; mortality risk; nursing home residents; osteoporosis; Kirurgi; Surgery; Kirurgi; Orthopaedics; ortopedi;

   Abstract : Hip fractures are the most serious consequence of osteoporosis, and are one important cause of morbidity and mortality among the elderly. Prophylactic treatment for hip fractures are now available. Early detection of individuals with increased risk for hip fractures is therefor of great interest. READ MORE