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.
(2025)
Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults.
European Heart Journal-Cardiovascular Imaging
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.
(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.
(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
Abstract
2020
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Sørensen, Kristian;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse.
(2020)
Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study.
Journal of the American Society of Echocardiography
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.
(2025)
Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults.
European Heart Journal-Cardiovascular Imaging
Abstract
-
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.
(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;
Mertens, Luc;
Henry, Matthew;
Segers, Patrick;
Løvstakken, Lasse.
(2023)
Assessment of Early Diastolic Intraventricular Pressure Difference in Children by Blood Speckle-Tracking Echocardiography.
Journal of the American Society of Echocardiography
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
Abstract
-
Sørensen, Kristian;
Fadnes, Solveig;
Wigen, Morten Smedsrud;
Salvesen, Øyvind;
Mertens, Luc;
Løvstakken, Lasse.
(2020)
Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study.
Journal of the American Society of Echocardiography
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
Outreach
2026
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Academic 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 , Leuven 05.02.2026 - 06.02.2026
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PosterWitso, M; Luo, H; Frostelid, V; Selmer, Lisa Marie; Sørensen, Kristian; Fadnes, Solveig. (2026) Changes in the basal-to-apical pressure drop estimated by blood speckle tracking reflect changes in left ventricular diastolic function. EACVI 2025 , Wien 11.12.2025 - 13.12.2025
2025
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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 , Hong Kong 08.12.2025 - 12.12.2025
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Academic lectureSørensen, Kristian; Nyrnes, Siri Ann. (2025) Intraventricular Pressure Difference by Blood Speckle Tracking - can we assess diastolic suction?. BACUS - Pediatric Brain and Cardiac Ultrasound , Bordeaux 06.11.2025 - 07.11.2025
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InterviewKristiansen, Kai; Sørensen, Kristian. (2025) Kan oppdage hjertesykdom hos barn tidligere. Forskning og innovasjon til pasientens beste : nasjonal rapport fra spesialisthelsetjenesten ... Forskning og innovasjon til pasientens beste : nasjonal rapport fra spesialisthelsetjenesten ... [Journal] 10.06.2025
2024
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Academic lectureSørensen, Kristian. (2024) Assessment of left ventricular early diastolic relaxation and suction by Blood Speckle Tracking. Nordic Pediatric Cardiology Meeting 2024 , Hurdalsjøen Hotel 18.09.2024 - 20.09.2024
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Academic lectureSørensen, Kristian. (2024) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. Meeting on Myocardial Function Imaging , Leuven 08.02.2024 - 09.02.2024
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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 , Berlin 11.12.2024 - 13.12.2024
2023
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PosterMawad, Wadi; Henry, Matthew; Sørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Mertens, Luc. (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 , Washington DC 27.08.2023 -
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PosterHenry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Mawad, Wadi; Løvstakken, Lasse; Mertens, Luc. (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 , Washington DC 27.08.2023 -
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LectureSørensen, Kristian. (2023) Ekkokardiografisk vurdering av diastolisk funksjon. Nasjonal barnekardiologisk og barnemedisinsk undervisning , Ålesund Sykehus, digitalt 02.02.2023 - 02.02.2023
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Academic lectureSørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 27.08.2023 - 01.09.2023
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PosterSørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 27.08.2023 - 01.09.2023
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Academic lectureSørensen, Kristian. (2023) Assessment of early-diastolic intraventricular pressure differences in children from Blood Speckle Tracking. CIUS WP 7 , Digitalt 27.02.2023 - 27.02.2023
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Academic lectureSørensen, Kristian. (2023) Assessment of diastolic suction by Blood Speckle Tracking. Fagdag, CAG for sjeldne genetiske sykdommer , Trondheim 30.11.2023 - 30.11.2023
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PosterMawad, Wadi; Nyrnes, Siri Ann; Fadnes, Solveig; Løvstakken, Lasse; Sørensen, Kristian; Mertens, Luc. (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 , Washington D.C. 27.08.2023 - 01.09.2023
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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 , Dublin 26.04.2023 - 29.04.2023
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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 , Dublin 26.04.2023 - 29.04.2023
2022
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Academic lectureSørensen, Kristian. (2022) Invasive validation of early-diastolic intraventricular pressure differences from Blood Speckle Tracking. Research meeting Sick Kids Hospital Toronto , Digitalt 20.10.2022 - 20.10.2022
2021
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Academic lectureSørensen, Kristian; Fadnes, Solveig. (2021) Intraventricular pressure gradients from blood speckle tracking. A novel diagnostic tool. CIUS Fall Conference 2021 07.12.2021 - 08.12.2021
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Academic lectureFadnes, Solveig; Sørensen, Kristian. (2021) Nye ekkokardiografiske metoder for evaluering av blodstrøm. Fredagsmøte Ålesund Sykehus , Ålesund Sykehus 03.12.2021 - 03.12.2021
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Academic lectureFadnes, Solveig; Sørensen, Kristian. (2021) Nye metoder for bedømming av blodstrøm. Perinataldagene , Oslo 11.11.2021 - 12.11.2021
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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 , Boston, konvertert til digital konferanse pga Covid 19 18.06.2021 - 21.06.2021
2020
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PosterSørensen, Kristian; Fadnes, Solveig; Wigen, Morten Smedsrud; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse. (2020) Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study. ASE 2020 Virtual Experience , Denver USA 08.08.2020 - 10.08.2020
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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 08.09.2020 - 11.09.2020