Browsing Institutt for sirkulasjon og bildediagnostikk by Title
Now showing items 1844-1863 of 1934
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Ultrasound imaging of blood flow based on high frame rate acquisition and adaptive signal processing
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:54, Doctoral thesis, 2013)Ultrasound imaging of blood flow is in widespread use for assessment of atherosclerotic disease. Imaging of the carotid arteries is of special interest, as blood clots from atherosclerotic plaques may follow the blood ... -
Ultrasound Improves the Delivery and Therapeutic Effect of Nanoparticle-Stabilized Microbubbles in Breast Cancer Xenografts
(Journal article; Peer reviewed, 2017)Compared with conventional chemotherapy, encapsulation of drugs in nanoparticles can improve efficacy and reduce toxicity. However, delivery of nanoparticles is often insufficient and heterogeneous because of various ... -
Ultrasound in image-guided spine surgery: Enabling technologies and first steps
(Doctoral theses at NTNU;2018:257, Doctoral thesis, 2018)Most people experience back pain at some point in their life. While most of these conditions are treated nonoperatively, surgical treatment has been shown to be both effective and cost effective compared to nonoperative ... -
Ultrasound speckle reduction using generative adversial networks
(Journal article; Peer reviewed, 2018)Generative adversial networks (GANs) have shown its ability to create realistic and accurate image-to-image transformation. The goal of this work was to investigate whether deep convolutional GANs can learn to perform ... -
Ultrasound Strain Rate Imaging of Individual Muscle Motor Units
(Journal article; Peer reviewed, 2014)Skeletal muscle is organized in motor units, each comprising a motor neuron and all its connected muscle fibres. The arrival of an action potential (a neural “impulse”) causes the fibers to contract, they exhibit a twitch. ... -
Ultrasound-based Estimation of Strain in Abdominal Aortic Aneurysm
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:369, Doctoral thesis, 2012)Abdominal aortic aneurysm (AAA) is a vascular disease resulting in a permanent local dilatation of the abdominal aorta. Different studies estimate the prevalence of AAA to 1.3-8.9% of men and 1.0-2.2% of women over 60 years ... -
Ultrasound-based quantification of myocardial deformation and rotation
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:33, Doctoral thesis, 2009) -
Ultrasound-mediated delivery and distribution of polymeric nanoparticles in the normal brain parenchyma of a metastatic brain tumour model
(Journal article; Peer reviewed, 2018)The treatment of brain diseases is hindered by the blood-brain barrier (BBB) preventing most drugs from entering the brain. Focused ultrasound (FUS) with microbubbles can open the BBB safely and reversibly. Systemic drug ... -
Ultrasound-mediated delivery enhances therapeutic efficacy of MMP sensitive liposomes
(Peer reviewed; Journal article, 2020)To improve therapeutic efficacy of nanocarrier drug delivery systems, it is essential to improve their uptake and penetration in tumour tissue, enhance cellular uptake and ensure efficient drug release at the tumour site. ... -
Ultrasound-Mediated Delivery of Chemotherapy into the Transgenic Adenocarcinoma of the Mouse Prostate Model
(Peer reviewed; Journal article, 2020)Ultrasound (US) in combination with microbubbles (MB) has had promising results in improving delivery of chemotherapeutic agents. However, most studies are done in immunodeficient mice with xenografted tumors. We used two ... -
Uncertainty quantification and sensitivity analysis for computational FFR estimation in stable coronary artery disease
(Journal article; Peer reviewed, 2018)Purpose The main objectives of this study are to validate a reduced-order model for the estimation of the fractional flow reserve (FFR) index based on blood flow simulations that incorporate clinical imaging and ... -
Ung voksen med Ravmatoid Artritt. En kvalitativ studie om mestringsstrategier
(Journal article; Peer reviewed, 2011)Bakgrunn: Livet som ung med Revmatoid artritt (RA) kan være krevende. Å studere unge voksne RA-pasienter som opplever velvære, antas å kunne gi nyttig kunnskap om mestringstrategier. Hensikt: Å beskrive unge voksne ... -
Unplanned out-of-institution births: Incidence, outcome, and prediction of imminent childbirth
(Doctoral theses at NTNU;2017:367, Doctoral thesis, 2017)SUMMARY Background On average, there are 60,000 births in Norway every year. Most take place at birth institutions: planned home births are few. For many women, an increase in the centralization of care has led to longer ... -
Unraveling the multifaceted in vivo fate of cancer nanomedicine
(Doctoral theses at NTNU;2019:369, Doctoral thesis, 2019) -
Unsupervised supervoxel-based lung tumor segmentation across patient scans in hybrid PET/MRI
(Peer reviewed; Journal article, 2020)Tumor segmentation is a crucial but difficult task in treatment planning and follow-up of cancerous patients. The challenge of automating the tumor segmentation has recently received a lot of attention, but the potential ... -
An Update on Prevalence, Assessment, and Risk Factors for Sleep Disturbances in Patients with Advanced Cancer—Implications for Health Care Providers and Clinical Research
(Peer reviewed; Journal article, 2022)Simple Summary This review focuses on sleep in patients with advanced cancer. Cancer patients experience multiple symptoms and they receive concomitant medications. These are all factors that may affect sleep. In this ... -
Upper limb pain and function in patients treated for breast cancer - pattern and predictors
(Master thesis, 2021)Abstract will be available on 2027-01-01 -
Urinary detection of corticosteroid in topical treatment of skin disease by 19F MRS
(Journal article; Peer reviewed, 2019)Objective To investigate if it was feasible to quantify the renal excretion of topically applied corticosteroids by 19F MRS. Materials and methods Five participants, one healthy and four with skin diseases, were treated ... -
The use of handheld ultrasound devices: a position statement of the European Association of Cardiovascular Imaging (2018 update)
(Journal article, 2019)Recent technological advances in echocardiography, with progressive miniaturization of ultrasound machines, have led to the development of handheld ultrasound devices (HUD). These devices, no larger than some mobile phones, ...