Blar i Institutt for sirkulasjon og bildediagnostikk på tittel
Viser treff 1788-1807 av 1879
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Ultrasound and magnetic resonance imaging for group stratification and treatment monitoring in the transgenic adenocarcinoma of the mouse prostate model
(Journal article; Peer reviewed, 2020)Background:The transgenic adenocarcinoma of the mouse prostate (TRAMP) is a widelyused genetically engineered spontaneous prostate cancer model. However, both thedegree of malignancy and time of cancer onset vary. While ... -
Ultrasound cardiac modeling, segmentation and tracking
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:79, Doctoral thesis, 2013)Echocardiography plays a key role in assessing cardiac diseases, especially in evaluating left ventricular (LV) function. It enables real-time, non-invasive, and relatively low cost acquisition of cardiac images. Furthermore, ... -
Ultrasound detection of vascular decompression bubbles: The influence of new technology and considerations on bubble load
(Journal article; Peer reviewed, 2014)INTRODUCTION: Diving often causes the formation of 'silent' bubbles upon decompression. If the bubble load is high, then the risk of decompression sickness (DCS) and the number of bubbles that could cross to the arterial ... -
Ultrasound imaging in neurosurgery: Delineation of tumours for resection control
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:85, Doctoral thesis, 2013)Complete removal, as opposed to only partial removal, of all macroscopic tumor tissue is associated with longer survival for most of the brain tumours. Ultrasound is an imaging technique that can contribute to increase the ... -
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 ...