Solveig Fadnes
About
Research
Research interests include medical ultrasound technology and cardiac blood flow imaging. Recent technological advances have given new possibilities in ultrasound blood flow imaging, and improved blood flow visualization and quantification may help the medical doctors when diagnosing cardiac diseases and give patients the best possible treatment and follow-up.
Part of the ultrasound research group at the Department of Circulation and Medical Imaging.
Publications
2026
-
Waal, Koert de;
Crendal, Edward;
Fadnes, Solveig;
Sørensen, Kristian;
Nyrnes, Siri Ann.
(2026)
Left ventricular flow dynamics in preterm infants assessed with high frame rate echocardiography with blood speckle tracking.
American Journal of Physiology. Heart and Circulatory Physiology
Academic article
2025
-
Witsø, Marit Helene Langset;
Luo, H;
Holm, T;
Kristiansen, H M;
Frostelid, V C;
Aalen, J;
Sørensen, Kristian;
Fadnes, Solveig;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2025)
Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults.
European Heart Journal-Cardiovascular Imaging
Conference abstract
-
Sivaraj, Eswar;
Løvstakken, Lasse;
Corney, Raphaela;
Fadnes, Solveig;
Espeland, Torvald;
Andresen, Kristoffer;
Marwick, Thomas H..
(2025)
Mechanical Wave Analysis at High Frame-Rate Echocardiography: Feasibility, Determinants and Normal Ranges.
JACC Cardiovascular Imaging
Academic article
-
Sørensen, Kristian;
Nyrnes, Siri Ann;
Fadnes, Solveig;
Mertens, Luc.
(2025)
Enhanced Assessment of Diastolic Function in Children using Blood Speckle Tracking.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
-
Sørensen, Kristian;
Fadnes, Solveig;
Myklebust, Tor Åge;
Løvstakken, Lasse;
Mertens, Luc;
Nyrnes, Siri Ann.
(2025)
Changes in left ventricular diastolic flow dynamics in the neonatal transition period and beyond.
American Journal of Physiology. Heart and Circulatory Physiology
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Mawad, Wadi;
Henry, Matthew;
Flade, Hans-Martin;
Østvik, Andreas;
Myklebust, Tor Åge;
Kirkeby-Garstad, Idar;
Løvstakken, Lasse;
Mertens, Luc.
(2025)
Intraventricular Pressure Difference Estimation based on Blood Speckle Tracking - Invasive Validation and Early Clinical Application.
European Heart Journal-Cardiovascular Imaging
Academic article
2024
-
Sauvage, Jack;
Moustefaoui, Safa;
Fiorentini, Stefano;
Venet, Maelys;
Fadnes, Solveig;
Løvstakken, Lasse;
Villemain, Olivier;
Salles, Sebastien Andre Roger.
(2024)
Detection of natural pulse waves (PWs) in 3D using high frame rate imaging for anisotropy characterization.
Frontiers in Physics
Academic article
-
Mohajery, Mohammad;
Salles, Sebastien Andre Roger;
Espeland, Torvald;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Løvstakken, Lasse.
(2024)
The 3D Estimation of Mechanical Wave Velocities in the Heart: Methods and Insights.
IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
2023
-
Henry, Matthew;
Fadnes, Solveig;
Løvstakken, Lasse;
Mawad, Wadi;
Mertens, Luc;
Nyrnes, Siri Ann.
(2023)
Flow Dynamics in Children With Bicuspid Aortic Valve: A Blood Speckle Tracking Study.
Ultrasound in Medicine and Biology
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Mertens, Luc;
Henry, Matthew;
Segers, Patrick;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2023)
Assessment of Early Diastolic Intraventricular Pressure Difference in Children by Blood Speckle-Tracking Echocardiography.
Journal of the American Society of Echocardiography
Academic article
-
Daae, Annichen Søyland;
Wigen, Morten Smedsrud;
Halvorsrød, Marlene Iversen;
Løvstakken, Lasse;
Støylen, Asbjørn;
Fadnes, Solveig.
(2023)
Retrospective Ultrasound Doppler Quantification Using a Single Acquisition in Healthy Adults.
Ultrasound in Medicine and Biology
Academic article
-
Mohajery, Mohammad;
Salles, Sebastien Andre Roger;
Espeland, Torvald;
Fadnes, Solveig;
Løvstakken, Lasse.
(2023)
Automated 3D velocity estimation of natural mechanical wave propagation in the myocardium.
IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
2022
-
Mawad, Wadi;
Fadnes, Solveig;
Løvstakken, Lasse;
Henry, Matthew;
Mertens, Luc;
Nyrnes, Siri Ann.
(2022)
Pulmonary Hypertension in Children is associated with Abnormal Flow patterns in the Main Pulmonary Artery as demonstrated by Blood Speckle Tracking.
CJC Pediatric and Congenital Heart Disease
Academic article
2021
-
Henry, Matthew;
Fadnes, Solveig;
Løvstakken, Lasse;
Mawad, Wadi;
Mertens, Luc;
Nyrnes, Siri Ann.
(2021)
Bicuspid aortic valve flow dynamics using blood speckle tracking in children.
European Heart Journal-Cardiovascular Imaging
Conference abstract
-
Daae, Annichen Søyland;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Løvstakken, Lasse;
Støylen, Asbjørn.
(2021)
Intraventricular Vector Flow Imaging with Blood Speckle Tracking in Adults: Feasibility, Normal Physiology and Mechanisms in Healthy Volunteers.
Ultrasound in Medicine and Biology
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2021)
Assessment of Regional Early Diastolic Intraventricular Pressure Gradients by Blood Speckle Tracking in Children.
Journal of the American Society of Echocardiography
Conference abstract
-
Mawad, Wadi;
Løvstakken, Lasse;
Fadnes, Solveig;
Grønli, Thomas;
Segers, Patrick;
Mertens, Luc;
Nyrnes, Siri Ann.
(2021)
Right Ventricular Flow Dynamics in Dilated Right Ventricles: Energy Loss Estimation Based on Blood Speckle Tracking Echocardiography-A Pilot Study in Children.
Ultrasound in Medicine and Biology
Academic article
2020
-
Sørensen, Kristian;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2020)
Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study.
Journal of the American Society of Echocardiography
Conference abstract
-
Fadnes, Solveig;
Sørensen, Kristian;
Nyrnes, Siri Ann;
Wigen, Morten Smedsrud;
Løvstakken, Lasse.
(2020)
Intraventricular Pressure Gradients - Vector Flow Imaging versus Color M-Mode.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Mawad, Wadi;
Fadnes, Solveig;
Grønli, Thomas;
Løvstakken, Lasse;
Mertens, Luc;
Nyrnes, Siri Ann.
(2020)
Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging.
Journal of the American Society of Echocardiography
Conference abstract
-
Nyrnes, Siri Ann;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Mertens, Luc;
Løvstakken, Lasse.
(2020)
Blood Speckle-Tracking Based on High–Frame Rate Ultrasound Imaging in Pediatric Cardiology.
Journal of the American Society of Echocardiography
Academic article
2019
-
Wigen, Morten Smedsrud;
Løvstakken, Lasse;
Fadnes, Solveig;
Torp, Hans.
(2019)
4D ultrasound vector flow imaging for intraventricular flow assessment.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
2018
-
Ekroll, Ingvild Kinn;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Avdal, Jørgen.
(2018)
Quantitative vascular blood flow imaging: A comparison of vector velocity estimation schemes.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Rodriguez-Molares, Alfonso;
Bjåstad, Tore Grüner;
Eriksen, Marius;
Stensæth, KNUT HAAKON;
Støylen, Asbjørn;
Løvstakken, Lasse.
(2018)
4-D Intracardiac Ultrasound Vector Flow Imaging-Feasibility and Comparison to Phase-Contrast MRI.
IEEE Transactions on Medical Imaging
Academic article
2017
-
Fadnes, Solveig;
Tegnander, Eva;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2017)
Vector Flow Imaging of Fetal Circulation using Diverging Waves.
Proceedings - IEEE Ultrasonics Symposium
Conference abstract
-
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2017)
In vivo intracardiac vector flow imaging using phased array transducers for pediatric cardiology.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Mawad, Wadi;
Løvstakken, Lasse;
Fadnes, Solveig;
Mertens, Luc;
Nyrnes, Siri Ann.
(2017)
Right ventricular flow dynamics in dilated right ventricles. Energy loss estimation based on blood speckle tracking echocardiography in children.
Journal of the American Society of Echocardiography
Conference abstract
2016
-
Cauwenberge, Joris Van;
Løvstakken, Lasse;
Fadnes, Solveig;
Rodriguez-Molares, Alfonso;
Vierendeels, Jan;
Segers, Patrick;
Swillens, Abigail.
(2016)
Assessing the Performance of Ultrafast Vector Flow Imaging in the Neonatal Heart via Multiphysics Modeling and in Vitro Experiments.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Wigen, Morten Smedsrud;
Tegnander, Eva;
Løvstakken, Lasse.
(2016)
Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking.
Proceedings - IEEE Ultrasonics Symposium
Academic article
2015
-
Fadnes, Solveig;
Bjærum, Steinar;
Torp, Hans;
Løvstakken, Lasse.
(2015)
Clutter filtering influence on blood velocity estimation using speckle tracking.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Fadnes, Solveig;
Ekroll, Ingvild Kinn;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2015)
Robust angle-independent blood velocity estimation based on dual-angle plane wave imaging.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
2014
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2014)
Shunt flow evaluation in congenital heart disease based on two-dimensional speckle tracking.
Ultrasound in Medicine and Biology
Academic article
-
Avdal, Jørgen;
Ekroll, Ingvild Kinn;
Fadnes, Solveig;
Løvstakken, Lasse;
Torp, Hans.
(2014)
2D tracking doppler for cardiac jet flow velocity estimation.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Fadnes, Solveig;
Ekroll, Ingvild Kinn;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2014)
Robust angle-independent blood velocity estimation based on multi-angle speckle tracking and vector Doppler.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Fadnes, Solveig;
Løvstakken, Lasse.
(2014)
Two-Dimensional Blood Velocity Estimation for Intracardiac Flow Assessment.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
2012
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Swillens, Abigail;
Torp, Hans;
Løvstakken, Lasse.
(2012)
Shunt quantification in congenital heart disease based on two-dimensional speckle tracking.
Proceedings - IEEE Ultrasonics Symposium
Academic article
2011
-
Alnes, Solveig Søvik;
Swillens, Abigail;
Segers, Patrick;
Torp, Hans;
Løvstakken, Lasse.
(2011)
Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation - a potential solution based on compounded imaging.
IEEE International Ultrasonics Symposium Proceedings
Academic article
Journal publications
-
Waal, Koert de;
Crendal, Edward;
Fadnes, Solveig;
Sørensen, Kristian;
Nyrnes, Siri Ann.
(2026)
Left ventricular flow dynamics in preterm infants assessed with high frame rate echocardiography with blood speckle tracking.
American Journal of Physiology. Heart and Circulatory Physiology
Academic article
-
Witsø, Marit Helene Langset;
Luo, H;
Holm, T;
Kristiansen, H M;
Frostelid, V C;
Aalen, J;
Sørensen, Kristian;
Fadnes, Solveig;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2025)
Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults.
European Heart Journal-Cardiovascular Imaging
Conference abstract
-
Sivaraj, Eswar;
Løvstakken, Lasse;
Corney, Raphaela;
Fadnes, Solveig;
Espeland, Torvald;
Andresen, Kristoffer;
Marwick, Thomas H..
(2025)
Mechanical Wave Analysis at High Frame-Rate Echocardiography: Feasibility, Determinants and Normal Ranges.
JACC Cardiovascular Imaging
Academic article
-
Sauvage, Jack;
Moustefaoui, Safa;
Fiorentini, Stefano;
Venet, Maelys;
Fadnes, Solveig;
Løvstakken, Lasse;
Villemain, Olivier;
Salles, Sebastien Andre Roger.
(2024)
Detection of natural pulse waves (PWs) in 3D using high frame rate imaging for anisotropy characterization.
Frontiers in Physics
Academic article
-
Mohajery, Mohammad;
Salles, Sebastien Andre Roger;
Espeland, Torvald;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Løvstakken, Lasse.
(2024)
The 3D Estimation of Mechanical Wave Velocities in the Heart: Methods and Insights.
IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
-
Fadnes, Solveig;
Bjærum, Steinar;
Torp, Hans;
Løvstakken, Lasse.
(2015)
Clutter filtering influence on blood velocity estimation using speckle tracking.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Fadnes, Solveig;
Tegnander, Eva;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2017)
Vector Flow Imaging of Fetal Circulation using Diverging Waves.
Proceedings - IEEE Ultrasonics Symposium
Conference abstract
-
Sørensen, Kristian;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2020)
Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study.
Journal of the American Society of Echocardiography
Conference abstract
-
Fadnes, Solveig;
Ekroll, Ingvild Kinn;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2015)
Robust angle-independent blood velocity estimation based on dual-angle plane wave imaging.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Henry, Matthew;
Fadnes, Solveig;
Løvstakken, Lasse;
Mawad, Wadi;
Mertens, Luc;
Nyrnes, Siri Ann.
(2023)
Flow Dynamics in Children With Bicuspid Aortic Valve: A Blood Speckle Tracking Study.
Ultrasound in Medicine and Biology
Academic article
-
Ekroll, Ingvild Kinn;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Avdal, Jørgen.
(2018)
Quantitative vascular blood flow imaging: A comparison of vector velocity estimation schemes.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Henry, Matthew;
Fadnes, Solveig;
Løvstakken, Lasse;
Mawad, Wadi;
Mertens, Luc;
Nyrnes, Siri Ann.
(2021)
Bicuspid aortic valve flow dynamics using blood speckle tracking in children.
European Heart Journal-Cardiovascular Imaging
Conference abstract
-
Cauwenberge, Joris Van;
Løvstakken, Lasse;
Fadnes, Solveig;
Rodriguez-Molares, Alfonso;
Vierendeels, Jan;
Segers, Patrick;
Swillens, Abigail.
(2016)
Assessing the Performance of Ultrafast Vector Flow Imaging in the Neonatal Heart via Multiphysics Modeling and in Vitro Experiments.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Wigen, Morten Smedsrud;
Tegnander, Eva;
Løvstakken, Lasse.
(2016)
Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Mertens, Luc;
Henry, Matthew;
Segers, Patrick;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2023)
Assessment of Early Diastolic Intraventricular Pressure Difference in Children by Blood Speckle-Tracking Echocardiography.
Journal of the American Society of Echocardiography
Academic article
-
Fadnes, Solveig;
Sørensen, Kristian;
Nyrnes, Siri Ann;
Wigen, Morten Smedsrud;
Løvstakken, Lasse.
(2020)
Intraventricular Pressure Gradients - Vector Flow Imaging versus Color M-Mode.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Nyrnes, Siri Ann;
Løvstakken, Lasse.
(2017)
In vivo intracardiac vector flow imaging using phased array transducers for pediatric cardiology.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2014)
Shunt flow evaluation in congenital heart disease based on two-dimensional speckle tracking.
Ultrasound in Medicine and Biology
Academic article
-
Daae, Annichen Søyland;
Wigen, Morten Smedsrud;
Halvorsrød, Marlene Iversen;
Løvstakken, Lasse;
Støylen, Asbjørn;
Fadnes, Solveig.
(2023)
Retrospective Ultrasound Doppler Quantification Using a Single Acquisition in Healthy Adults.
Ultrasound in Medicine and Biology
Academic article
-
Mawad, Wadi;
Fadnes, Solveig;
Løvstakken, Lasse;
Henry, Matthew;
Mertens, Luc;
Nyrnes, Siri Ann.
(2022)
Pulmonary Hypertension in Children is associated with Abnormal Flow patterns in the Main Pulmonary Artery as demonstrated by Blood Speckle Tracking.
CJC Pediatric and Congenital Heart Disease
Academic article
-
Alnes, Solveig Søvik;
Swillens, Abigail;
Segers, Patrick;
Torp, Hans;
Løvstakken, Lasse.
(2011)
Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation - a potential solution based on compounded imaging.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Myklebust, Tor Åge;
Løvstakken, Lasse;
Mertens, Luc;
Nyrnes, Siri Ann.
(2025)
Changes in left ventricular diastolic flow dynamics in the neonatal transition period and beyond.
American Journal of Physiology. Heart and Circulatory Physiology
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Mawad, Wadi;
Henry, Matthew;
Flade, Hans-Martin;
Østvik, Andreas;
Myklebust, Tor Åge;
Kirkeby-Garstad, Idar;
Løvstakken, Lasse;
Mertens, Luc.
(2025)
Intraventricular Pressure Difference Estimation based on Blood Speckle Tracking - Invasive Validation and Early Clinical Application.
European Heart Journal-Cardiovascular Imaging
Academic article
-
Daae, Annichen Søyland;
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Løvstakken, Lasse;
Støylen, Asbjørn.
(2021)
Intraventricular Vector Flow Imaging with Blood Speckle Tracking in Adults: Feasibility, Normal Physiology and Mechanisms in Healthy Volunteers.
Ultrasound in Medicine and Biology
Academic article
-
Wigen, Morten Smedsrud;
Fadnes, Solveig;
Rodriguez-Molares, Alfonso;
Bjåstad, Tore Grüner;
Eriksen, Marius;
Stensæth, KNUT HAAKON;
Støylen, Asbjørn;
Løvstakken, Lasse.
(2018)
4-D Intracardiac Ultrasound Vector Flow Imaging-Feasibility and Comparison to Phase-Contrast MRI.
IEEE Transactions on Medical Imaging
Academic article
-
Mohajery, Mohammad;
Salles, Sebastien Andre Roger;
Espeland, Torvald;
Fadnes, Solveig;
Løvstakken, Lasse.
(2023)
Automated 3D velocity estimation of natural mechanical wave propagation in the myocardium.
IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
-
Fadnes, Solveig;
Nyrnes, Siri Ann;
Swillens, Abigail;
Torp, Hans;
Løvstakken, Lasse.
(2012)
Shunt quantification in congenital heart disease based on two-dimensional speckle tracking.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Mawad, Wadi;
Løvstakken, Lasse;
Fadnes, Solveig;
Mertens, Luc;
Nyrnes, Siri Ann.
(2017)
Right ventricular flow dynamics in dilated right ventricles. Energy loss estimation based on blood speckle tracking echocardiography in children.
Journal of the American Society of Echocardiography
Conference abstract
-
Mawad, Wadi;
Fadnes, Solveig;
Grønli, Thomas;
Løvstakken, Lasse;
Mertens, Luc;
Nyrnes, Siri Ann.
(2020)
Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging.
Journal of the American Society of Echocardiography
Conference abstract
-
Nyrnes, Siri Ann;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Mertens, Luc;
Løvstakken, Lasse.
(2020)
Blood Speckle-Tracking Based on High–Frame Rate Ultrasound Imaging in Pediatric Cardiology.
Journal of the American Society of Echocardiography
Academic article
-
Avdal, Jørgen;
Ekroll, Ingvild Kinn;
Fadnes, Solveig;
Løvstakken, Lasse;
Torp, Hans.
(2014)
2D tracking doppler for cardiac jet flow velocity estimation.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Sørensen, Kristian;
Fadnes, Solveig;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse;
Nyrnes, Siri Ann.
(2021)
Assessment of Regional Early Diastolic Intraventricular Pressure Gradients by Blood Speckle Tracking in Children.
Journal of the American Society of Echocardiography
Conference abstract
-
Fadnes, Solveig;
Ekroll, Ingvild Kinn;
Nyrnes, Siri Ann;
Torp, Hans;
Løvstakken, Lasse.
(2014)
Robust angle-independent blood velocity estimation based on multi-angle speckle tracking and vector Doppler.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Mawad, Wadi;
Løvstakken, Lasse;
Fadnes, Solveig;
Grønli, Thomas;
Segers, Patrick;
Mertens, Luc;
Nyrnes, Siri Ann.
(2021)
Right Ventricular Flow Dynamics in Dilated Right Ventricles: Energy Loss Estimation Based on Blood Speckle Tracking Echocardiography-A Pilot Study in Children.
Ultrasound in Medicine and Biology
Academic article
Student thesis or dissertation
-
Sørensen, Kristian;
Nyrnes, Siri Ann;
Fadnes, Solveig;
Mertens, Luc.
(2025)
Enhanced Assessment of Diastolic Function in Children using Blood Speckle Tracking.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
-
Wigen, Morten Smedsrud;
Løvstakken, Lasse;
Fadnes, Solveig;
Torp, Hans.
(2019)
4D ultrasound vector flow imaging for intraventricular flow assessment.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
-
Fadnes, Solveig;
Løvstakken, Lasse.
(2014)
Two-Dimensional Blood Velocity Estimation for Intracardiac Flow Assessment.
Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Outreach
2026
-
Conference lectureSørensen, Kristian; Nyrnes, Siri Ann; Fadnes, Solveig. (2026) Changes in left ventricular flow dynamics in the neonatal transition period and beyond. Leuven Meeting on Myocardial Function Imaging
-
Conference posterWitso, M; Luo, H; Frostelid, V; Selmer, Lisa Marie; Sørensen, Kristian; Fadnes, Solveig; Nyrnes, Siri Ann; Løvstakken, Lasse; Hammersboen, L E; Boe, E. (2026) Changes in the basal-to-apical pressure drop estimated by blood speckle tracking reflect changes in left ventricular diastolic function. EACVI 2025
2025
-
Conference posterSørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2025) Changes in left ventricular diastolic flow dynamics in the neonatal transition period and beyond. World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference lectureFadnes, Solveig. (2025) The relationship between tissue and flow properties in the fetal heart. BACUS: Pediatric brain and cardiac ultrasound
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Conference lectureFadnes, Solveig. (2025) Vector flow imaging: clinical utility of intracardiac flow parameters. The 2025 Artimino Conference on Medical Ultrasound
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Conference lectureEspeland, Torvald; Fadnes, Solveig; Berg, Erik Andreas Rye; Løvstakken, Lasse; Aakhus, Svend; Amundsen, Brage H.. (2025) Mechanical wave velocities in patients with aortic stenosis using 2D High frame rate echocardiography. Myocardial Function Imaging
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Conference lectureEspeland, Torvald; Fadnes, Solveig; Berg, Erik Andreas Rye; Salles, Sebastien Andre Roger; Løvstakken, Lasse; Amundsen, Brage H.; Aakhus, Svend. (2025) Mechanical wave imaging- feasibility and reproducibility “the Trondheim experience”. Myocardial Function Imaging
2024
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Conference posterAldana-Aguirre, Jose; Perez-Lopez, Pablo; Hui, Wei; Henry, Matthew; Fadnes, Solveig; Nyrnes, Siri Ann; Jain, Amish; Mertens, Luc. (2024) Pulmonary Arterial and Right Ventricular Flow Dynamics in Neonates with Pulmonary Hypertension. 57th Annual Meeting of the Association for European Paediatric and Congenital Cardiology
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Conference posterWitsø, Marit Helene Langset; Sørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Nyrnes, Siri Ann. (2024) Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults. EuroEcho-Imaging 2024
2023
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Conference posterMawad, Wadi; Henry, Matthew; Sørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2023) Intracardiac Flow Dynamics In Children With Single Ventricle Physiology Demonstrated By High-frame-rate Cardiac Ultrasound And Blood SpeckleTracking. 8th World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference posterHenry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Mawad, Wadi; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2023) Evaluation Of Right Ventricular Diastolic Flow In Children With Congenital Heart Diseases Using Blood Speckle Tracking. 8th World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference lectureFadnes, Solveig. (2023) Vector Flow Imaging and extracted flow features. The 2023 Artimino Conference on Medical Ultrasound Technology
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Conference lectureFadnes, Solveig. (2023) High Frame Rate Imaging in Pediatric and Fetal Medicine - Opportunities and Challenges. IEEE International Ultrasonics Symposium
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Conference lectureGrønli, Thomas; Løvstakken, Lasse; Nyrnes, Siri Ann; Fadnes, Solveig. (2023) 4D Cardiac Vector Flow Imaging from Triplane Color Doppler and Dynamic Model-Based Regularization. 2023 IEEE International Ultrasonics Symposium
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Conference lectureSørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew; Mawad, Wadi; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. 8th World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference posterSørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew; Mawad, Wadi; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. 8th World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference posterMawad, Wadi; Nyrnes, Siri Ann; Fadnes, Solveig; Løvstakken, Lasse; Sørensen, Kristian; Mertens, Luc; Henry, Matthew. (2023) Intracardiac Flow Dynamics In Children With Single Ventricle Physiology Demonstrated By High-frame-rate Cardiac Ultrasound And Blood Speckle Tracking. 8TH World Congress of Pediatric Cardiology and Cardiac Surgery
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Conference posterHenry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Løvstakken, Lasse; Nyrnes, Siri Ann; Mertens, Luc. (2023) Evaluation of natural mechanical wave velocities in children with pulmonary arterial hypertension. AEPC 2023
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Conference posterHenry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2023) Evaluation of left ventricular diastolic flow dynamics in children with pulmonary arterial hypertension using blood speckle tracking. AEPC 2023
2022
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Conference lectureMohajery, Mohammad; Espeland, Torvald; Berg, Erik Andreas Rye; Fadnes, Solveig; Salles, Sebastien; Amundsen, Brage H.; Aakhus, Svend; Løvstakken, Lasse. (2022) 3D mechanical wave imaging – initial analysis and insight. Leuven online meeting on myocardial function imaging
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Conference lectureMohajery, Mohammad; Fadnes, Solveig; Espeland, Torvald; Salles, Sebastien; Løvstakken, Lasse. (2022) Three-dimensional velocity estimation of natural mechanical waves in the myocardium. International ultrasonics symposium
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Conference lecture
2021
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Conference posterMohajery, Mohammad; Wigen, Morten Smedsrud; Fadnes, Solveig; Pasdeloup, David Francis Pierre; Smistad, Erik; Espeland, Torvald; Salles, Sebastien; Løvstakken, Lasse. (2021) The variation of natural myocardial mechanical wave velocities due to 3D propagation. International Ultrasonics Symposium
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Conference lectureFadnes, Solveig. (2021) Nye ekkokardiografiske metoder for evaluering av blodstrøm. Fredagsmøtet Ålesund Sykehus
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Conference lectureFadnes, Solveig. (2021) Intraventricular pressure gradients from blood speckle tracking. A novel diagnostic tool. CIUS Fall Conference 2021
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Conference lectureSørensen, Kristian; Fadnes, Solveig. (2021) Intraventricular pressure gradients from blood speckle tracking. A novel diagnostic tool. CIUS Fall Conference 2021
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Conference lectureFadnes, Solveig; Sørensen, Kristian. (2021) Nye ekkokardiografiske metoder for evaluering av blodstrøm. Fredagsmøte Ålesund Sykehus
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Conference lecture
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Conference lectureGrønli, Thomas; Wigen, Morten Smedsrud; Daae, Annichen Søyland; Segers, Patrick; Støylen, Asbjørn; Løvstakken, Lasse; Fadnes, Solveig. (2021) Model-Based Regularization for Non-Invasive Intraventricular Flow and Pressure Estimates in 4D Ultrasound Imaging. International Ultrasonics Symposium
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Conference posterSørensen, Kristian; Fadnes, Solveig; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2021) Assessment of Regional Early Diastolic Intraventricular Pressure Gradients by Blood Speckle Tracking in Children. ASE 2021
2020
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Conference posterSørensen, Kristian; Fadnes, Solveig; Wigen, Morten Smedsrud; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2020) Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study. ASE 2020 Virtual Experience
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Conference posterMawad, Wadi; Fadnes, Solveig; Grønli, Thomas; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2020) Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging. ASE 2020
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Conference lectureHenry, Matthew; Fadnes, Solveig; Løvstakken, Lasse; Mawad, Wadi; Mertens, Luc; Nyrnes, Siri Ann. (2020) Bicuspid aortic valve assessment using blood speckle tracking in children. EACVI Best of Imaging 2020
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Conference lectureSalles, Sebastien; Fadnes, Solveig; Nyrnes, Siri Ann; Løvstakken, Lasse. (2020) High-frame-rate imaging of cardiac tissue-flow interaction: Towards the origin of the atrial kick wave. IEEE International Ultrasonics Symposium 2020
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Conference posterFadnes, Solveig; Sørensen, Kristian; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Løvstakken, Lasse. (2020) Intranventricular Pressure Gradients - Vector Flow Imaging versus Color M-Mode. IEEE International Ultrasonics Symposium 2020
2019
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Conference lectureFadnes, Solveig. (2019) Vector flow imaging in the neonatal heart. Artimino 2019 - Ultrasound conference on tissue motion and blood velocity imaging
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Conference lectureSalles, Sebastien; Løvstakken, Lasse; Espeland, Torvald; Wigen, Morten Smedsrud; Fadnes, Solveig; Støylen, Asbjørn; Torp, Hans. (2019) 3D mechanical wave trajectory mapping in the left ventricle using Clutter Filter Wave Imaging. 2019 IEEE International Ultrasonics Symposium
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Conference lectureFadnes, Solveig. (2019) Intracardiac flow in newborn patients with congenital heart disorders. EuroEcho 2019
2018
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LectureMawad, Wadi; Nyrnes, Siri Ann; Fadnes, Solveig; Grønli, Thomas; Mertens, Luc; Løvstakken, Lasse. (2018) cardiac flow dynamics by echocardiography: current and future perspectives. American Society of Echocardiography
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Conference posterEkroll, Ingvild Kinn; Wigen, Morten Smedsrud; Fadnes, Solveig; Avdal, Jørgen. (2018) Quantitative vascular blood flow imaging: a comparison of vector velocity estimation schemes. IEEE international ultrasound symposium
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Conference lectureFadnes, Solveig; Salles, Sebastien; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2018) In vivo estimation of myocardial mechanical wave propagation in the fetus. IEEE International Ultrasonics Symposium
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Conference lectureNyrnes, Siri Ann; Fadnes, Solveig; Salles, Sebastien; Løvstakken, Lasse. (2018) High Frame Rate Imaging. 29th Annual ASE Scientific Sessions
2017
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Conference lectureFadnes, Solveig; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Vector flow imaging of fetal circulation using diverging waves. 2017 IEEE International Ultrasonics Symposium
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Conference lectureFadnes, Solveig; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Vector flow imaging of fetal circulation - an in vivo study. The Artimino Conference on Medical Ultrasound Technology
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Conference lecture
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Conference lectureEkroll, Ingvild Kinn; Avdal, Jørgen; Salles, Sebastien; Fadnes, Solveig; Rodriguez-Molares, Alfonso; Løvstakken, Lasse. (2017) Quantitative ultrasound imaging (at NTNU) - cardiovascular applications. 2017 Workshop on cardiovascular applications of medical ultrasound imaging
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LectureFadnes, Solveig; Wigen, Morten Smedsrud; Grønli, Thomas; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Cardiac vector flow imaging. Myocardial Velocity & Deformation Imaging
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Conference lectureNyrnes, Siri Ann; Fadnes, Solveig; Mertens, Luc; Løvstakken, Lasse. (2017) Blood Speckle Tracking - New insight to Pediatric Cardiology?. ASE 2017
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Conference lectureMawad, Wadi; Løvstakken, Lasse; Fadnes, Solveig; Mertens, Luc; Nyrnes, Siri Ann. (2017) Right ventricular flow dynamics in dilated right ventricles. Energy loss estimation based on blood speckle tracking echocardiography in children. ASE 2017
2016
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LectureSjøbakk, Torill Anita Eidhammer; Haukaas, Tonje Husby; Bathen, Tone Frost; Moestue, Siver Andreas; Selnæs, Kirsten Margrete; Øen, Silje Kjærnes; Giskeødegård, Guro F.; Sandsmark, Elise; Grinde, Maria Tunset; Hill, Deborah Katherine. (2016) BILDER UTEN GRENSER. Forskningstorget 2016
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Conference lectureFadnes, Solveig; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Tegnander, Eva; Løvstakken, Lasse. (2016) Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking. IEEE International Ultrasonics Symposium
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Conference lectureFadnes, Solveig. (2016) Flow tracking – blodstrømskart for hjertet. Norsk forening for ultralyddiagnostikk - årlig symposium
2015
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Conference lecture
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Conference lectureFadnes, Solveig; Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Plane wave imaging of congenital heart defects from fetal to newborn stage. Artimino
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Conference lectureLøvstakken, Lasse; Wigen, Morten Smedsrud; Fadnes, Solveig; Nyrnes, Siri Ann. (2015) 3D Cardiac Flow Imaging. Artimino
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Conference lectureLøvstakken, Lasse; Fadnes, Solveig; Nyrnes, Siri Ann. (2015) Flow mapping in congenital heart disease. 10th European Echocardiography Course on Congenital Heart Disease
2013
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Interview
2012
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Conference lectureFadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. 4th PhD Conference in Medical Imaging
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Conference lectureFadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. 2012 IEEE International Ultrasonics Symposium
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Conference posterFadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. 2012 IEEE International Ultrasonics Symposium
2011
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Conference posterAlnes, Solveig Søvik; Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2011) Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation. IEEE International Ultrasonics Symposium 2011
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Conference lectureAlnes, Solveig Søvik; Løvstakken, Lasse. (2011) Multi-dimensional flow quantification of cardiac flow patterns. The Artimino Conference on Medical Ultrasound Technology
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Conference lectureAlnes, Solveig Søvik; Løvstakken, Lasse. (2011) Biomechanical simulation and multi-dimensional flow imaging of cardiac flow. The 2nd National PhD conference in Medical Imaging and the Annual MedViz conference