Sökning: "pressure"

Visar resultat 31 - 35 av 4627 avhandlingar innehållade ordet pressure.

1. 31. Resonator sensor technique for medical use : an intraocular pressure measurement system

   Författare :Anders Eklund; Umeå universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensor; Vibration; Hardness; Prostate; intraocular pressure; resonator; eye; applanation; glaucoma;

   Sammanfattning : In the work of this doctoral dissertation a new resonator sensor technique, first presented in 1989, has been further developed and evaluated with focus on technical characteristics and applications within the medical field. In a first part a catheter-type tactile sensor using the resonator sensor technique was evaluated in a silicone model and applied to human prostate in vitro. LÄS MER

3. 32. Idiopathic normal pressure hydrocephalus : epidemiology and diagnostics

   Författare :Johanna Andersson; Katarina Laurell; Jan Malm; Per Kristian Eide; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; idiopathic normal pressure hydrocephalus; epidemiology; prevalence; gait disorders; neuroimaging cognitive impairment; urinary incontinence; quality of life; depression;

   Sammanfattning : Idiopathic normal pressure hydrocephalus (iNPH) is a progressive neurological condition characterized by a deterioration of gait, cognition, and continence. The diagnosis is based on a combination of enlarged ventricles seen in neuroimaging, with typical clinical findings. iNPH often affects elderly individuals (i.e. LÄS MER

4. 33. High Blood Pressure in Children with Hydronephrosis

   Författare :Ammar Nadhom Farman Al-Mashhadi; Mattias Carlström; Gundela Holmdahl; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood pressure; hydronephrosis; hypertension; ambulatory blood pressure monitoring; nitric oxide; oxidative stress; pelvo-ureteric junction obstruction.; Barnkirurgi; Pediatric Surgery;

   Sammanfattning : The most common cause of secondary hypertension is intrinsic renal disease, but little is known about the influence of hydronephrosis on blood pressure. In this thesis, the risk of development of hypertension in children with hydronephrosis was studied. LÄS MER

5. 34. Influence of middle ear pressure changes on labyrinthine hydrodynamics and hearing physiology

   Författare :Konrad Konradsson; Lund näs- och halssjukdomar Öron-; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; auditive system and speech; audiology; Pressure; Audiometry; Cats; Animal; Cochlea; Cochlear aqueduct; Ear; Eustachian tube; Hearing; Otorinolaryngologi; Human; Labyrinth; Otorhinolaryngology; Meniere s disease; audiologi; hörsel- och talorganen;

   Sammanfattning : Results from experimental studies, as well as clinical studies, are used to elucidate the effects of ambient pressure changes on cochlear hydrodynamics and function. The perilymph pressure changes and the pressure release effects of the cochlear aqueduct (CA) and Eustachian tube (ET) in cats exposed to hypobaric pressure are elucidated. LÄS MER

7. 35. Negative Pressure Wound Therapy - Effects on Sternotomy Wounds and the Intrathoracic Organs

   Författare :Christian Torbrand; Lund Oftalmologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NPWT; negative pressure; vacuum-assisted closure; sternotomy wounds; deep sternal wound infection; mediastinitis; thoracic surgery; pressure transduction; neurohormones; neuropeptides; total heart volume variation; cardiac output; wound contraction; macrodeformation;

   Sammanfattning : Negative pressure wound therapy (NPWT) has been widely adopted for the treatment of deep sternal wound infections due to its excellent clinical outcome. However, the mechanisms of action and effects on hemodynamics have not been thoroughly elucidated. LÄS MER