Browsing Institutt for sirkulasjon og bildediagnostikk by Title
Now showing items 173-192 of 1866
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Automated reference tissue normalization of T2-weighted MR images of the prostate using object recognition
(Peer reviewed; Journal article, 2020)Objectives To develop and evaluate an automated method for prostate T2-weighted (T2W) image normalization using dual-reference (fat and muscle) tissue. Materials and methods Transverse T2W images from the publicly ... -
Automatic analysis in echocardiography using machine learning
(Doctoral theses at NTNU, 2021:230, Doctoral thesis, 2021)Echocardiography is the cornerstone of modern cardiac imaging due to its availability, low cost and real-time functionality. The modality has enabled sophisticated non-invasive evaluation of the hearts morphophysiology, ... -
Automatic assessment of left ventricular function for hemodynamic monitoring using artificial intelligence and transesophageal echocardiography
(Peer reviewed; Journal article, 2024)We have developed a method to automatically assess LV function by measuring mitral annular plane systolic excursion (MAPSE) using artificial intelligence and transesophageal echocardiography (autoMAPSE). Our aim was to ... -
Automatic Detection and Measurement of Fetal Biparietal Diameter and Femur Length — Feasibility on a Portable Ultrasound Device
(Journal article, 2017)An automatic method able to recognize a presented section through the biparietal plane of the fetal head and a section through the fetal femur in ultrasound images is developed. Once the correct anatomical section for ... -
Automatic interpretation of cement evaluation logs from cased boreholes using supervised deep neural networks
(Peer reviewed; Journal article, 2020)The integrity of cement in cased boreholes is typically evaluated using well logging. However, well logging results are complex and can be ambiguous, and decisions associated with significant risks may be taken based on ... -
Automatic Intraoperative Correction of Brain Shift for Accurate Neuronavigation
(Journal article; Peer reviewed, 2018)Background Unreliable neuronavigation owing to inaccurate patient-to-image registration and brain shift is a major problem in conventional magnetic resonance imaging–guided neurosurgery. We performed a prospective ... -
Automatic intraoperative estimation of blood flow direction during neurosurgical interventions
(Journal article; Peer reviewed, 2018)Purpose In neurosurgery, reliable information about blood vessel anatomy and flow direction is important to identify, characterize, and avoid damage to the vasculature. Due to ultrasound Doppler angle dependencies and the ... -
Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence: clinical validation in real time and large databases
(Peer reviewed; Journal article, 2023)Aims Echocardiography is a cornerstone in cardiac imaging, and left ventricular (LV) ejection fraction (EF) is a key parameter for patient management. Recent advances in artificial intelligence (AI) have enabled fully ... -
Automatic measurements of mitral annular motion indices
(Doctoral theses at NTNU;2020:4, Doctoral thesis, 2020) -
Automatic measurements of mitral annular plane systolic excursion and velocities to detect left ventricular dysfunction
(Journal article; Peer reviewed, 2018)The purpose of the study described here was to evaluate an automatic algorithm for detection of left ventricular dysfunction, based on measurements of mitral annular motion indices from color tissue Doppler apical four-chamber ... -
Automatic Myocardial Strain Imaging in Echocardiography Using Deep Learning
(Journal article; Peer reviewed, 2018)Recent studies in the field of deep learning suggest that motion estimation can be treated as a learnable problem. In this paper we propose a pipeline for functional imaging in echocardiography consisting of four central ... -
Automatic quantification of left ventricular function by medical students using ultrasound
(Peer reviewed; Journal article, 2020)Background Automatic analyses of echocardiograms may support inexperienced users in quantifying left ventricular (LV) function. We have developed an algorithm for fully automatic measurements of mitral annular plane ... -
Autophagy signaling in skeletal muscle of infarcted rats
(Journal article; Peer reviewed, 2014)Background: Heart failure (HF)-induced skeletal muscle atrophy is often associated to exercise intolerance and poor prognosis. Better understanding of the molecular mechanisms underlying HF-induced muscle atrophy may ... -
Avdekke, henvise og behandle personer med kronisk hepatitt C som følge av oppsøkende virksomhet
(Master thesis, 2021)Innledning Kronisk Hepatitt C er en virussykdom som kan gi alvorlig leverskade og har høy forekomst blant personer som injiserer rusmidler. Med dagens behandling er det mulig å kurere så godt som alle med kronisk hepatitt ... -
Avspenningsevne hos personer med langvarige smerter
(Master thesis, 2019)Bakgrunn og hensikt: Redusert evne til avspenning er observert hos personer med langvarige smerter, men er likevel lite utforsket. Det er lite forskning om sammenhengen mellom smerteintensitet og avspenningsevne, og mellom ... -
"Å stå i det" Helsepersonells erfaringer med den barnepalliative oppfølgingen i kommunen - en kvalitativ studie
(Master thesis, 2022)Bakgrunn: I Norge er det estimert at 3500-4000 barn har behov for en barnepalliativ oppfølging årlig, og fra 2017 til 2021 døde i snitt over 180 barn mellom 0-19 år årlig som følge av sykdom. Kreft, sykdommer i nervesystemet, ... -
Bacteria-on-a-bead: probing the hydrodynamic interplay of dynamic cell appendages during cell separation
(Peer reviewed; Journal article, 2022)Surface attachment of bacteria is the first step of biofilm formation and is often mediated and coordinated by the extracellular appendages, flagellum and pili. The model organism Caulobacter crescentus undergoes an ... -
Barn med overvekt og fedme: en kvantitativ pilotstudie av standardisert livsstilsbehandling i kommunehelsetjenesten
(Master thesis, 2020)Hensikt: Pilotstudie for å undersøke effekten av et standardisert behandlingsprogram for overvekt og fedme hos barn (TCOCT) i kommunehelsetjenesten, samt vurdere implementeringen av behandlingstilbudet. Metode: Observasjonsstudie ... -
Barndomssosiologiske metoder for å involvere barns perspektiver i folkehelse - En systematisk oversiktsstudie
(Master thesis, 2022)Introduksjon/bakgrunn Barndomssosiologien er en tilnærming hvor man forstår barn som sosiale, aktive og kompetente aktører. Med denne tilnærmingen som grunnlag, er denne masteroppgaven i klinisk helsevitenskap en oversiktsstudie ... -
Basal level of autophagy and MAP1LC3B-II as potential biomarkers for DHA-induced cytotoxicity in colorectal cancer cells
(Journal article, 2018)The omega‐3 fatty acid docosahexaenoic acid (DHA) is known as an anticancer agent. Colorectal cancer (CRC) cells exhibit different sensitivity toward DHA, but the mechanisms involved are still unclear. Gene expression ...