Sökning: "ultrasonography"

Visar resultat 21 - 25 av 90 avhandlingar innehållade ordet ultrasonography.

1. 21. Power Doppler - Principles and Potential Clinical Applications

   Författare :Anders Nilsson; PG Lindgren; Torbjörn Andersson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Ultrasonography; Doppler studies; Power Doppler; Volume flow; Radiologisk forskning; Radiological research; Radiologisk forskning;

   Sammanfattning : The purpose of this work was to: a) Determine whether the amount of colour in a power Doppler image is dependent on the angle between the examined vessel and the soundbeam and/or on the velocity of the flow within the vessel; b) Investigate if a dependency on flow velocity could be used for the detection of volume flow differences and c) Define clinical applications utilising the improved sensitivity to low flow of PD.In the experimental studies (study I and II) a silicon tube in a water bath was insonated, the insonation angle and the volume flow changed and the resulting images stored, transferred to a personal computer and analysed with regard to the amount of colour present in the image. LÄS MER

3. 22. The use of ultrasound in the prediction of endometrial cancer in women with postmenopausal bleeding

   Författare :Gina Opolskiene; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; endometrial neoplasms; ultrasonography; postmenopause; Doppler ultrasound;

   Sammanfattning : The aim of the work presented in this thesis was to identify the ultrasound methods and ultrasound features that are most useful for the prediction of endometrial cancer in patients with postmenopausal bleeding and sonographic endometrial thickness 4.5 mm or more. LÄS MER

4. 23. Arterial wall stiffness in man. On gender differences and abnormalities in insulin dependent diabetes mellitus and alpha1-antitrypsin deficiency

   Författare :Åsa Rydén Ahlgren; Malmö Klinisk fysiologi och nuklearmedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sex characteristics.; abdominal aortic aneurysm; arterial stiffness; alpha1-antitrypsin deficiency; ultrasonography; Insulin dependent diabetes mellitus; Clinical physics; radiology; tomography; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

   Sammanfattning : The mechanical properties of major arteries may reflect early manifestations of vascular disease and are also of interest because they are important for cardiac work. Using echo-tracking sonography and blood pressure measurements, arterial stiffness and diameters were investigated in healthy individuals as well as in patients with insulin dependent diabetes mellitus (IDDM) or alpha1-antitrypsin deficiency (alpha1-AT deficiency). LÄS MER

5. 24. Advances in the Management of Facial Paralysis Sequelae

   Författare :Villiam Vejbrink Kildal; Andres Rodriguez-Lorenzo; Patrik Lassus; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; facial paralysis; facial palsy; facial synkinesis; synkinesis; facial contracture; facial nerve reconstruction; nerve transfer; nerve graft; microsurgery; myectomy; depressor anguli oris; depressor labii inferioris; platysma; mentalis; lacrimal gland; botulinum toxin; injection; ultrasound; sonography; ultrasonography; crocodile tears syndrome; gustatory hyperlacrimation; excessive tearing; literature review; review; classification system; management algorithm; plastic surgery; static reconstruction; dynamic reconstruction; Plastikkirurgi; Plastic Surgery;

   Sammanfattning : Background: Despite advances in the management of facial paralysis and its associated sequelae, therapies targeting the lower facial region remain underdeveloped. This thesis aimed to improve both the diagnostic and therapeutic modalities for facial paralysis, with a focus on the lower face. LÄS MER

7. 25. Atherosclerosis in middle-aged men. A prospective study with focus on factors related to the metabolic syndrome

   Författare :Karin Wallenfeldt; Göteborgs universitet; []
   Nyckelord :apolipoproteins; atherosclerosis; C-reactive protein; insulin resistance; intima-media thickness; LDL cholesterol; longitudinal study; metabolic syndrome X; smokeless tobacco; ultrasonography;

   Sammanfattning : The metabolic syndrome (MetS) is a clustering of cardiovascular disease CVD) risk factors. Pro-spective studies have demonstrated that patients with MetS are about three times more likely to experience CVD events than those without MetS. Up to one third of the adult population seems to be affected worldwide. LÄS MER