Sökning: "vascular morphology"

Visar resultat 1 - 5 av 83 avhandlingar innehållade orden vascular morphology.

1. 1. Three-dimensional ultrasound studies of normal and abnormal ovaries

   Författare :Ligita Jokubkiene; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ovary; ovarian follicle; ovarian neoplasms; ultrasonography; three-dimensional imaging; Doppler ultrasound imaging; vascular morphology;

   Sammanfattning : The aims of this work were: 1) to estimate the number of follicles, ovarian volume and power Doppler vascular indices and their changes with age using three-dimensional (3D) transvaginal grey-scale and power Doppler ultrasound in asymptomatic women of fertile age either with natural menstrual cycles or using combined oral contraceptives, and 2) to determine whether tumour vascularity, assessed by 3D power Doppler ultrasound, can help discriminate between benign and malignant ovarian tumours. A group of 303 gynaecologically asymptomatic women, aged 20–39 years with normal menstrual cycles (NMC) and another group of 213 women aged 20–39 years using combined oral contraceptives (COC) were examined using two-dimensional (2D) and 3D transvaginal ultrasound once between cycle day 4 and 8. LÄS MER

3. 2. Visual function and ocular morphology in children with surgically treated hydrocephalus

   Författare :Susann Andersson; Göteborgs universitet; []
   Nyckelord :vision; hydrocephalus; ocular morphology; children;

   Sammanfattning : Abstract Aims To investigate the frequency of ophthalmological abnormalities, the need and timing of eye-care interventions as well as incidence, aetiology and neurological/neuropsychological outcomes in children with hydrocephalus needing surgical treatment during the first year of life. Patients and Methods Papers I & II: Seventy-five school-aged children (34 girls and 41 boys) with surgically treated hydrocephalus and 140 age and sex matched control participants underwent a comprehensive ophthalmologic examination including structured history taking regarding visual perceptual problems and ocular fundus photography. LÄS MER

4. 3. Geometric Modeling of Thoracic Aortic Surface Morphology - Implications for Pathophysiology and Clinical Interventions

   Författare :Johan Bondesson; Chalmers tekniska högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; surface curvature; chirality; cardiac pulsatility; aneurysm; helical morphology; stereolithographic 3D surfaces; TEVAR; geometric modeling; endograft; Thoracic aorta; type B aortic dissection; bird-beaking;

   Sammanfattning : Vascular disease risk factors such as hypertension, hyperlipidemia and old age are all results of modern-day lifestyle, and these diseases are getting more and more common. One treatment option for vascular diseases such as aneurysms and dissections is endovascular aortic repair introduced in the early 1990s. LÄS MER

5. 4. Shock wave effects on the vascular endothelium

   Författare :Anders Sondén; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Shock waves; cavitation; explosions; high-energy missile trauma; ESWL; laser; endothelial cells; cell membrane damage; cytoskeleton; adhesion molecules; reactive oxygen species;

   Sammanfattning : A shock wave is a pressure wave with high amplitude and a velocity above sound. Man is exposed to shock waves (SWs) in connection with trauma, e.g. explosions and high-energy missiles and medical treatments such as extracorporeal lithotripsy (ESWL). LÄS MER

7. 5. Vascular related pathologies in cardiovascular disease and cancer

   Författare :Sharan Ananthaseshan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Cardiovascular disease (CVD) and cancer are the leading causes of death worldwide. A damaged endothelium is one of the factors contributing towards these diseases. This thesis focused on understanding the implications of alterations to the physiological endothelium resulting in pathologies related to vascular disease and cancer metastasis. LÄS MER