Blar i NTNU Open på forfatter "Edvardsen, Thor"
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Artificial Intelligence for Automatic Measurement of Left Ventricular Strain in Echocardiography
Salte, Ivar M.; Østvik, Andreas; Smistad, Erik; Melichova, Daniela; Nguyen, Thuy Mi; Karlsen, Sigve; Brunvand, Harald; Haugaa, Kristina H.; Edvardsen, Thor; Løvstakken, Lasse; Grenne, Bjørnar (Journal article; Peer reviewed, 2021)Objectives This study sought to examine if fully automated measurements of global longitudinal strain (GLS) using a novel motion estimation technology based on deep learning and artificial intelligence (AI) are feasible ... -
BEtablocker Treatment After acute Myocardial Infarction in revascularized patients without reduced left ventricular ejection fraction (BETAMI): Rationale and design of a prospective, randomized, open, blinded end-point study
Munkhaugen, John; Ruddox, Vidar; Halvorsen, Sigrun; Dammen, Toril; Fagerland, Morten; Hernæs, Kjersti Helene; Vethe, Nils Tore; Prescott, Eva; Jensen, Svend Eggert; Rødevand, Olaf; Jortveit, Jarle; Bendz, Bjørn; Schirmer, Henrik; Kõber, Lars; Botker, Hans Erik; Larsen, Alf Inge; Vikenes, Kjell; Steigen, Terje; Wiseth, Rune; Pedersen, Terje Rolf; Edvardsen, Thor; Otterstad, Jan Erik; Atar, Dan (Peer reviewed; Journal article, 2019)Background - Current guidelines on the use of β-blockers in post–acute myocardial infarction (MI) patients without reduced left ventricular ejection fraction (LVEF) are based on studies before the implementation of modern ... -
Criteria for surveys: from the European Association of Cardiovascular Imaging Scientific Initiatives Committee
Haugaa, Kristina; Marsan, Nina Ajmone; Cameli, Matteo; D'Andrea, Antonello; Dweck, Mark R.; Carvalho, Ricardo Fontes; Holte, Espen; Manka, Robert; Michalski, Blazej; Podlesnikar, Tomaz; Popescu, Bogdan A.; Schulz-Menger, Jeanette; Sitges, Marta; Stankovic, Ivan; Maurer, Gerald; Edvardsen, Thor (Journal article; Peer reviewed, 2019)The European Association of Cardiovascular Imaging (EACVI) is committed to maintaining the highest standards of professional excellence in all aspects of cardiovascular imaging. The mission of the EACVI is to promote ... -
Deep Learning for Improved Precision and Reproducibility of Left Ventricular Strain in Echocardiography: A Test-Retest Study
Salte, Ivar Mjåland; Østvik, Andreas; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas; Smistad, Erik; Eriksen-Volnes, Torfinn Kirknes; Brunvand, Harald; Haugaa, Kristina Ingrid Helena Hermann; Edvardsen, Thor; Dalen, Håvard; Løvstakken, Lasse; Grenne, Bjørnar Leangen (Peer reviewed; Journal article, 2023)Aims Assessment of left ventricular (LV) function by echocardiography is hampered by modest test-retest reproducibility. A novel artificial intelligence (AI) method based on deep learning provides fully automated ... -
Global longitudinal strain is a more reproducible measure of left ventricular function than ejection fraction regardless of echocardiographic training
Karlsen, Sigve; Dahlslett, Thomas; Grenne, Bjørnar; Sjøli, Benthe; Smiseth, Otto A.; Edvardsen, Thor; Brunvand, Harald (Peer reviewed; Journal article, 2019)Background: Left ventricular ejection fraction (LVEF) is an established method for evaluation of left ventricular (LV)systolic function. Global longitudinal strain (GLS) by speckle tracking echocardiography seems to be an ... -
Increased deformation of the left ventricle during exercise test measured by global longitudinal strain can rule out significant coronary artery disease in patients with suspected unstable angina pectoris
Karlsen, Sigve; Melichova, Daniela; Dahlslett, Thomas; Grenne, Bjørnar; Sjøli, Benthe; Smiseth, Otto A.; Edvardsen, Thor; Brunvand, Harald (Peer reviewed; Journal article, 2022)Background Noninvasive identification of significant coronary artery disease (CAD) in patients with unstable angina pectoris (UAP) is challenging. Exercise stress testing has been used for years in patients with suspected ... -
Long-term cardiac effects of modern treatment for Hodgkin’s lymphoma
Bjerring, Anders W.; Smeland, Knut Bjøro; Stokke, Thomas Muri; Haugaa, Kristina Ingrid Helena Hermann; Holte, Espen; Rösner, Assami; Kiserud, Cecilie E.; Edvardsen, Thor; Sarvari, Sebastian (Journal article; Peer reviewed, 2024)Background Hodgkin’s lymphoma (HL) is a hematological malignancy that affects both children and young adults. Traditional treatment is associated with a life-time prevalence of cardiac disease exceeding 50%. In the late ... -
Mortality in Patients with Acute Coronary Syndrome—A Prospective 5-Year Follow-Up Study
Nguyen, Thuy Mi; Melichova, Daniela; Aabel, Eivind Westrum; Lie, Øyvind Haugen; Klæboe, Lars Gunnar; Grenne, Bjørnar Leangen; Sjøli, Benthe; Brunvand, Harald; Haugaa, Kristina Ingrid Helena Hermann; Edvardsen, Thor (Peer reviewed; Journal article, 2023)Our objective was to compare long-term outcomes in patients with non-ST-elevation myocardial infarction (NSTEMI) and ST-elevation myocardial infarction (STEMI) between two time periods in Southern Norway. There are limited ... -
Myocardial Function Imaging in Echocardiography Using Deep Learning
Østvik, Andreas; Salte, Ivar Mjåland; Smistad, Erik; Nguyen, Thuy Mi; Melichova, Daniela; Brunvand, Harald; Haugaa, Kristina; Edvardsen, Thor; Grenne, Bjørnar; Løvstakken, Lasse (Journal article; Peer reviewed, 2021)Deformation imaging in echocardiography has been shown to have better diagnostic and prognostic value than conventional anatomical measures such as ejection fraction. However, despite clinical availability and demonstrated ... -
Prognostic value of circulating microRNA-210 levels in patients with moderate to severe aortic stenosis
Røsjø, Helge; Dahl, Mai Britt; Bye, Anja; Andreassen, Johanna; Jørgensen, Marit; Wisløff, Ulrik; Christensen, Geir Arve; Edvardsen, Thor; Omland, Torbjørn (Journal article; Peer reviewed, 2014)Background: Circulating micro-RNAs have been proposed as a novel class of cardiovascular (CV) biomarkers, but whether they meet analytical requirements and provide additional information to establish risk indices have ... -
Real-Time Automatic Ejection Fraction and Foreshortening Detection Using Deep Learning
Smistad, Erik; Salte, Ivar Mjåland; Østvik, Andreas; Melichova, Daniela; Nguyen, Thuy Mi; Haugaa, Kristina; Brunvand, Harald; Edvardsen, Thor; Leclerc, Sarah; Bernard, Olivier; Grenne, Bjørnar; Løvstakken, Lasse (Peer reviewed; Journal article, 2020)Volume and ejection fraction (EF) measurements of the left ventricle (LV) in 2-D echocardiography are associated with a high uncertainty not only due to interobserver variability of the manual measurement, but also due to ... -
Sepsis causes right ventricular myocardial inflammation independent of pulmonary hypertension in a porcine sepsis model
Pischke, Søren; Hestenes, Siv Merete; Johansen, Harald Thidemann; Fure, Hilde; Bugge, Jan F; Espinoza, Andreas Westenvik; Skulstad, Helge; Edvardsen, Thor; Fosse, Erik; Mollnes, Tom Eirik; Halvorsen, Per Steinar; Nielsen, Erik Waage (Journal article; Peer reviewed, 2019)Introduction Right ventricular (RV) myocardial dysfunction is a common feature in septic shock. It can worsen outcome, but the etiology is poorly understood. Pulmonary artery hypertension (PAH) plays a part in the ... -
Treatment of sleep apnea in patients with paroxysmal atrial fibrillation: design and rationale of a randomized controlled trial
Traaen, Gunn Marit; Aakerøy, Lars; Hunt, Tove Elisabeth F.; Øverland, Britt; Lyseggen, Erik; Aukrust, Pål; Ueland, Thor; Helle-Valle, Thomas Michael; Steinshamn, Sigurd Loe; Edvardsen, Thor; Zare, Hasse Khiabani; Aakhus, Svend; Akre, Harriet; Anfinsen, Ole-Gunnar; Loennechen, Jan Pål; Gullestad, Lars (Journal article; Peer reviewed, 2018)Rationale. Atrial fibrillation is associated with increased mortality as well as morbidity. There is strong evidence for an association between atrial fibrillation and sleep apnea. It is not known whether treatment of sleep ... -
The use of handheld ultrasound devices: a position statement of the European Association of Cardiovascular Imaging (2018 update)
Cardim, Nuno; Dalen, Håvard; Voigt, Jens-Uwe; Ionescu, Adrian; Price, Susanna; Neskovic, Aleksandar N; Edvardsen, Thor; Galderisi, Maurizio; Sicari, Rosa; Donal, Erwan; Stefanidis, Alexandros; Delgado, Victoria; Zamorano, Jose; Popescu, Bogdan (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, ...