Kristian Sørensen
Publications
2026
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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
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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
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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
2023
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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
2021
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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
2020
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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
Journal publications
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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
-
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
-
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
-
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
-
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
Outreach
2026
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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
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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
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Conference lectureSørensen, Kristian; Nyrnes, Siri Ann. (2025) Intraventricular Pressure Difference by Blood Speckle Tracking - can we assess diastolic suction?. BACUS - Pediatric Brain and Cardiac Ultrasound
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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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Interview
2024
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Conference lectureSørensen, Kristian. (2024) Assessment of left ventricular early diastolic relaxation and suction by Blood Speckle Tracking. Nordic Pediatric Cardiology Meeting 2024
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Conference lectureSørensen, Kristian. (2024) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. Meeting on Myocardial Function Imaging
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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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LectureSørensen, Kristian. (2023) Ekkokardiografisk vurdering av diastolisk funksjon. Nasjonal barnekardiologisk og barnemedisinsk undervisning
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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 lectureSørensen, Kristian. (2023) Assessment of early-diastolic intraventricular pressure differences in children from Blood Speckle Tracking. CIUS WP 7
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Conference lectureSørensen, Kristian. (2023) Assessment of diastolic suction by Blood Speckle Tracking. Fagdag, CAG for sjeldne genetiske sykdommer
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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 lectureSørensen, Kristian. (2022) Invasive validation of early-diastolic intraventricular pressure differences from Blood Speckle Tracking. Research meeting Sick Kids Hospital Toronto
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 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 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