Sökning: "medical ultrasound"

Visar resultat 41 - 45 av 299 avhandlingar innehållade orden medical ultrasound.

1. 41. Subclinical cardiovascular disease and health related quality of life in patients with radiographic axial spondyloarthritis

   Författare :Lucy Law; Stefan Söderberg; Helena Forsblad-d'Elia; Per Lindqvist; Isabel Goncalves; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiographic axial spondyloarthritis; health related quality of life; cardiovascular disease; ultrasound; common carotid artery; intima media thickness; epicardial adipose tissue; Medicine; medicin; cardiovascular disease; hjärt- och kärlforskning; reumatologi; rheumatology;

   Sammanfattning : Background: Radiographic axial spondyloarthritis (r-axSpA) is a chronic inflammatory rheumatic disease predominantly affecting the axial skeleton. The global prevalence of r-axSpA is between 0.1-1.4%. LÄS MER

3. 42. Ultrasound as predictor of perinatal outcome

   Författare :Gisela Ghosh; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Doppler; Ultrasound; fetus; amniotic fluid index; nuchal cord; uterine artery; umbilical vein; fetal growth restriction; umbilical artery; pulsation; pregnancy;

   Sammanfattning : The aim of the work described in this thesis was to evaluate the value of ultrasound examinations of the amniotic fluid, umbilical cord and blood flow velocity waveform of the fetal and placental vessels as predictors of the perinatal outcome. In the first study, the amniotic fluid index (AFI) measured on admission to the labour ward was evaluated in low-risk pregnancies. LÄS MER

4. 43. Evaluation of Errors and Limitations in Ultrasound Imaging Systems

   Författare :Mattias Mårtensson; Lars-Åke Brodin; Peter Rask; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medical engineering; Medicinsk teknik;

   Sammanfattning : There are binding regulations requiring safety and efficacy aspects of medical devices. The requirements ask for documentation that the devices are safe and effective for their intended use, i.e. if a device has a measuring function it must be correct. LÄS MER

5. 44. Statistical Segmentation and Registration of Medical Ultrasound Data

   Författare :Mattias Hansson; Matematik LTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Registration; Segmentation; Feature descriptor; Statistical image and signal processing; Medical ultrasound; Variational methods; Mixture model; Bayesian; Markov Chain Monte Carlo; Similarity measur;

   Sammanfattning : The interpretation of ultrasonic imagery is typically not straightforward and of quite subjective nature and therefore strongly dependent on the expertise of its users. Thus the development of algorithms which aid in the interpretation of ultrasonic data is a highly relevant topic. LÄS MER

7. 45. Exploring the role of rheology in bolus flow using an in-vitro approach

   Författare :Muhammad Waqas; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; extensional rheology; ultrasound viscometery; Bolus rheology; in vivo analysis; in vitro manometry; In-vitro simulations; degluitition; microstructure analysis; thickened fluids; Dysphagia;

   Sammanfattning : Swallowing disorders, termed ‘dysphagia’, are more common in the elderly but can also affect younger persons. Approximately, 8% of the world’s population suffers from dysphagia. A Texture Modified Diet (TMD), which increases bolus viscosity to adjust for the sluggish bolus handling mechanism, is the most common intervention. LÄS MER