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2023
1 Aabel, Eivind Westrum; Dejgaard, Lars; Chivulescu, Ana Monica; Helle-Valle, Thomas Michael; Edvardsen, Thor; Hasselberg, Nina Eide; Hegbom, Finn; Lie, Øyvind Haugen; Haugaa, Kristina Ingrid Helena Hermann.
Flecainide in patients with arrhythmic mitral valve syndrome: A case series. Heart Rhythm 2023 s. 1-2
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2022
2 Aabel, Eivind Westrum; Chivulescu, Ana Monica; Lie, Øyvind Haugen; Hopp, Einar; Gjertsen, Erik; Ribe, Margareth; Helle-Valle, Thomas Michael; Edvardsen, Thor; Hegbom, Finn; Dejgaard, Lars; Haugaa, Kristina Ingrid Helena Hermann.
High incidence of ventricular arrhythmia in arrhythmic mitral valve syndrome - an implantable loop recorder study. 20th Annual Oslo Symposium on Heart Research; 2022-09-08 - 2022-09-09
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3 Aabel, Eivind Westrum; Chivulescu, Ana Monica; Lie, Øyvind Haugen; Hopp, Einar; Gjertsen, Erik; Ribe, Margareth; Helle-Valle, Thomas Michael; Edvardsen, Thor; Hegbom, Finn; Dejgaard, Lars; Haugaa, Kristina Ingrid Helena Hermann.
Ventricular arrhythmias in arrhythmic mitral valve syndrome - a prospective continuous long-term cardiac monitoring study. Europace 2022 ;Volum 25.(2) s. 506-516
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4 Aabel, Eivind Westrum; Chivulescu, Ana Monica; Lie, Øyvind Haugen; Rootwelt-Norberg, Christine; Ribe, Margareth; Gjertsen, Erik; Hopp, Einar; Edvardsen, Thor; Helle-Valle, Thomas Michael; Hegbom, Finn; Dejgaard, Lars; Haugaa, Kristina Ingrid Helena Hermann.
Predictors of ventricular arrhythmias in arrhythmic mitral valve syndrome - a study using implantable loop recorders. ESC Congress 2022; 2022-08-26 - 2022-08-29
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2021
5 Chivulescu, Ana Monica; Krohg-Sørensen, Kirsten; Scheirlynck, Esther Steffie; Lindberg, Beate; Dejgaard, Lars; Lie, Øyvind Haugen; Helle-Valle, Thomas Michael; Skjølsvik, Eystein Theodor Ek; Estensen, Mette E; Edvardsen, Thor; Lingaas, Per Snorre; Haugaa, Kristina Ingrid Helena Hermann.
Mitral annulus disjunction is associated with adverse outcome in Marfan and Loeys-Dietz syndromes. European Heart Journal-Cardiovascular Imaging 2021 ;Volum 22.(9) s. 1035-1044
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2020
6 Chivulescu, Ana Monica; Krogh-Sørensen, Kirsten; Scheirlynck, Esther; Lindberg, Beate Rikken; Dejgaard, Lars; Lie, Øyvind Haugen; Helle-Valle, Thomas Michael; Skjølsvik, Eystein Theodor Ek; Aabel, Eivind Westrum; Hunt, Tove Elizabeth Frances; Estensen, Mette-Elise; Edvardsen, Thor; Lingaas, Per Snorre; Haugaa, Kristina.
Mitral annulus disjunction is highly prevalent in patients with Marfan syndrome and Loyes-Dietz syndrome. ESC Congress 2020; 2020-08-29 - 2020-09-02
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2019
7 Dahle, Gry; Helle-Valle, Thomas Michael; Beitnes, Jan Otto; Espinoza, Andreas Westenvik; Halvorsen, Per Steinar; Rein, Kjell Arne.
Single-centre first experience with transapical transcatheter mitral valve replacement with an apical tether: Factors influencing screening outcomes. Interactive Cardiovascular and Thoracic Surgery 2019 ;Volum 28.(5) s. 695-703
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2018
8 Dejgaard, Lars; Skjølsvik, Eystein Theodor Ek; Lie, Øyvind Haugen; Ribe, Margareth; Stokke, Mathis Korseberg; Hegbom, Finn; Scheirlynck, Esther Steffie; Gjertsen, Erik; Andresen, Kristoffer; Helle-Valle, Thomas Michael; Hopp, Einar; Edvardsen, Thor; Haugaa, Kristina.
The Mitral Annulus Disjunction Arrhythmic Syndrome. Journal of the American College of Cardiology 2018 ;Volum 72.(14) s. 1600-1609
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9 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.
Treatment of sleep apnea in patients with paroxysmal atrial fibrillation: design and rationale of a randomized controlled trial. Scandinavian Cardiovascular Journal 2018 ;Volum 52.(6) s. 372-377
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2016
10 Habibi, Mohammadali; Samiei, Sanaz; Venkatesh, Bharath Ambale; Opdahl, Anders; Helle-Valle, Thomas Michael; Zareian, Mytra; Almeida, Andre L.C.; Choi, Eui-Young; Wu, Colin; Alonso, Alvaro; Heckbert, Susan R.; Bluemke, David A.; Lima, João A.C..
Cardiac magnetic resonance-measured left atrial volume and function and incident atrial fibrillation. Circulation Cardiovascular Imaging 2016 ;Volum 9.(8)
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2015
11 Dumont, Karl-Andreas; Karlsen, Jørn Skaarud; Helle-Valle, Thomas Michael; Fiane, Arnt E; Lundblad, Runar; Urheim, Stig.
Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments. Cardiovascular Ultrasound 2015 ;Volum 13:25. s. 1-9
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12 Opdahl, Anders; Helle-Valle, Thomas Michael; Skulstad, Helge; Smiseth, Otto A..
Strain, strain rate, torsion, and twist: echocardiographic evaluation. Current Cardiology Reports 2015 ;Volum 17.(3) s. 1-14
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2014
13 Habibi, Mohammadali; Chahal, Harjit; Opdahl, Anders; Gjesdal, Ola; Helle-Valle, Thomas Michael; Heckbert, Susan R.; McClelland, Robyn; Wu, Colin; Shea, Steven; Hundley, Gregory; Bluemke, David A.; Lima, João A.C..
Association of CMR-measured la function with heart failure development: Results from the MESA study. JACC Cardiovascular Imaging 2014 ;Volum 7.(6) s. 570-579
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2012
14 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Edvardsen, Thor; Smiseth, Otto A..
Myocardial Relaxation, Restoring Forces, and Early-Diastolic Load Are Independent Determinants of Left Ventricular Untwisting Rate. Circulation 2012 ;Volum 126.(12) s. 1441-1451
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15 Vartdal, Trond; Pettersen, Eirik; Helle-Valle, Thomas Michael; Lyseggen, Erik; Andersen, Kai; Smith, Hans-Jørgen; Aaberge, Lars; Smiseth, Otto A.; Edvardsen, Thor.
Identification of Viable Myocardium in Acute Anterior Infarction Using Duration of Systolic Lengthening by Tissue Doppler Strain: A Preliminary Study. Journal of the American Society of Echocardiography 2012 ;Volum 25.(7) s. 718-725
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2011
16 Helle-Valle, Thomas Michael; Opdahl, Anders; Broch, Kaspar; Gude, Einar; Andreassen, Arne K.; Smiseth, Otto A.; Gullestad, Lars.
Left Atrial Strain by Speckle Tracking Echocardiography In Patients with Heart Failure An Independent and Incremental Predictor of Cardiac Death or Need of Heart Transplantation. Circulation 2011 ;Volum 124.(21) s. -
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17 Helle-Valle, Thomas Michael; Smith, Hans-Jørgen; Hopp, Einar; Lunde, Ketil; Vartdal, Trond; Gjesdal, Ola; Edvardsen, Thor; Smiseth, Otto A..
Transmural infarct distribution in reperfused myocardium after STEMI. American Heart Association Scientific Meeting 2011; 2011-11-12 - 2011-11-16
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2010
18 Helle-Valle, Thomas Michael; Yu, WC; Fernandes, VRS; Rosen, BD; Lima, Joãz AC.
Usefulness of Radial Strain Mapping by Multidetector Computer Tomography to Quantify Regional Myocardial Function in Patients With Healed Myocardial Infarction. American Journal of Cardiology 2010 ;Volum 106.(4) s. 483-491
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2009
19 Helle-Valle, Thomas Michael; Broch, Kaspar; Smiseth, Otto A..
Atrial Strain by Speckle Tracking Echocardiography: A New Non-Invasive Marker of Left Atrial Mean Pressure. AHA Scientific Sessions; 2009-11-14
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20 Helle-Valle, Thomas Michael; Broch, Kaspar; Smiseth, Otto A..
Atrial Strain by Speckle Tracking Echocardiography: A New Non-Invasive Marker of Left Atrial Mean Pressure. Circulation 2009 ;Volum 120.(18) s. S382-S382
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21 Helle-Valle, Thomas Michael; Pettersen, Eirik; Vartdal, Trond; Lyseggen, Erik; Opdahl, Anders; Remme, Espen W.; Smith, Hans-Jørgen; Lunde, Ketil; Ihlen, Halfdan; Smiseth, Otto A.; Edvardsen, Thor.
Strain Mapping by Speckle Tracking Echocardiography: A Novel Approach for Detailed Quanti. cation of Infarct Transmurality Irregularities After STEMI. Journal of the American College of Cardiology 2009 ;Volum 53.(10) s. A259-A260
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22 Helle-Valle, Thomas Michael; Redheuil, A; Fernandes, RS; Rosen, BD; Loma, J.
New Simplified Method for Detailed Quantification of Regional Myocardial Function From Untagged MRI Cine Recordings: Radial Strain Mapping by Multimodality Tissue Tracking (MTT). AHA Scientific Sessions; 2009-11-14
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23 Helle-Valle, Thomas Michael; Remme, Espen W.; Lyseggen, Erik; Pettersen, Eirik; Vartdal, Trond; Opdahl, Anders; Smith, Hans-Jørgen; Osman, N F; Ihlen, Halfdan; Edvardsen, Thor; Smiseth, Otto A..
Clinical Assessment of Left Ventricular Rotation and Strain - A Novel Approach for Quantification of Function in Infarcted Myocardium and its Border Zones. American Journal of Physiology. Heart and Circulatory Physiology 2009 ;Volum 297.(1) s. H257-H267
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24 Lyseggen, Erik; Vartdal, Trond; Remme, Espen W.; Helle-Valle, Thomas Michael; Pettersen, Eirik; Opdahl, Anders; Edvardsen, Thor; Smiseth, Otto A..
A novel echocardiographic marker of end systole in the ischemic left ventricle: "tug of war" sign. American Journal of Physiology. Heart and Circulatory Physiology 2009 ;Volum 296.(3) s. H645-H654
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25 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Edvardsen, Thor; Smiseth, Otto A..
How Twisted is the Left Ventricle?. AHA Scientific Sessions; 2009-11-14
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26 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Edvardsen, Thor; Smiseth, Otto A..
Left Ventricular Lengthening Load and Shear Strain Are Important and Independent Determinants of Rate of Diastolic Untwist. AHA Scientific Session; 2009-11-14
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27 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Lyseggen, Erik; Vartdal, Trond; Pettersen, Eirik; Edvardsen, Thor; Smiseth, Otto A..
Determinants of Left Ventricular Early-Diastolic Lengthening Velocity Independent Contributions From Left Ventricular Relaxation, Restoring Forces, and Lengthening Load. Circulation 2009 ;Volum 119.(19) s. 2578-2586
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28 Remme, Espen W.; Lyseggen, Erik; Helle-Valle, Thomas Michael; Pettersen, Eirik; Ragnarsson, Asgrimur; Ihlen, Halfdan; Edvardsen, Thor; Smiseth, Otto A.; Opdahl, Anders; Vartdal, Trond; Ljosland, Morten.
Response to Letter Regarding Article, "Mechanisms of Preejection and Postejection Velocity Spikes in Left Ventricular Myocardium: Interaction Between Wall Deformation and Valve Events". Circulation 2009 ;Volum 119.(6) s. E205-E205
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2008
29 Crosby, Jonas; Amundsen, Brage H.; Helle-Valle, T; Steen, Per Arvid; Torp, Hans.
A new tissue Doppler method for examination of left ventricular rotation. Ultrasound in Medicine and Biology 2008 ;Volum 34.(11) s. 1741-1751
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30 Gjesdal, Ola; Helle-Valle, Thomas Michael; Hopp, Einar; Lunde, Ketil; Vartdal, Trond; Aakhus, Svend; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Noninvasive Separation of Large, Medium, and Small Myocardial Infarcts in Survivors of Reperfused ST-Elevation Myocardial Infarction A Comprehensive Tissue Doppler and Speckle-Tracking Echocardiography Study. Circulation Cardiovascular Imaging 2008 ;Volum 1. s. 189-196
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31 Gjesdal, Ola; Helle-Valle, Thomas Michael; Lunde, Ketil; Hopp, Einar; Vartdal, Trond; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Segment analyses improves the accuracy of global deformation assessment in ischemic heart disease. ESC Congress; 2008-08-30
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32 Gjesdal, Ola; Vartdal, Trond; Helle-Valle, Thomas Michael; Lunde, Ketil; Hopp, Einar; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Global strain is superior to mitral annulus displacement to quantify myocardial infarct mass in chronic ischemic heart disease. ESC Congress; 2008-08-30
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33 Helle-Valle, Thomas Michael; Fernandes, VR; Rosen, BD; Bluemke, David A.; Lima, JAC.
Regional Left Ventricular Myocardial Dysfunction in Pre-Diabetic and Diabetic Subjects: The Tagged MRI Study of the Multi Ethnic Study of Atherosclerosis ( MESA ). AHA Scientific Sessions; 2008-11-09
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34 Helle-Valle, Thomas Michael; Fernandes, VR; Rosen, BD; Lima, J A.
A New Noninvasive Clinical Method for Combined Quantification of Cardiac and Vascular Mechanical Function - Pixel Based Multimodality Tissue Tracking (MMTT). AHA Scientific Sessions; 2008-11-09
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35 Opdahl, Anders; Helle-Valle, Thomas Michael; Remme, Espen W.; Vartdal, Trond; Pettersen, Eirik; Lunde, Ketil; Edvardsen, Thor; Smiseth, Otto A..
Apical rotation by speckle tracking echocardiography: A simplified bedside index of left ventricular twist. Journal of the American Society of Echocardiography 2008 ;Volum 21. s. 1121-1128
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36 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Lyseggen, Erik; Vartdal, Trond; Pettersen, Eirik; Edvardsen, Thor; Smiseth, Otto A..
Restoring Forces and Lengthening Load are Independent and Important Determinants of Peak Early-Diastolic Mitral Annulus Velocity. AHA Scientific Sessions; 2008-11-09
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37 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas Michael; Vartdal, Trond; Lyseggen, Erik; Pettersen, Eirik; Edvardsen, Thor; Smiseth, Otto A..
Early-diastolic mitral annulus velocity is determined by early-diastolic load. ESC Congress; 2008-08-30
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38 Remme, Espen W.; Lyseggen, Erik; Helle-Valle, Thomas Michael; Opdahl, Anders; Pettersen, Eirik; Vartdal, Trond; Ragnarsson, Asgrimur; Ljosland, Morten; Ihlen, Halfdan; Edvardsen, Thor; Smiseth, Otto A..
Mechanisms of Preejection and Postejection Velocity Spikes in Left Ventricular Myocardium: Interaction Between Wall Deformation and Valve Events. Circulation 2008 ;Volum 118.(4) s. 373-380
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39 Vartdal, Trond; Pettersen, Eirik; Helle-Valle, Thomas Michael; Lyseggen, Erik; Smith, Hans-Jørgen; Ihlen, Halfdan; Andersen, Kai; Smiseth, Otto A.; Edvardsen, Thor.
Early prediction of tissue viability in acute myocardial infarction by strain Doppler. ESC Congress; 2008-08-30
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2007
40 Gjesdal, Ola; Helle-Valle, Thomas; Lunde, Ketil; Hopp, Einar; Vartdal, Trond; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Echocardiographic strain parameters in 3 dimensions predict the extent of scar transmurality in chronic ischaemic heart disease. ESC Congress; 2007-09-01 - 2007-09-05
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41 Gjesdal, Ola; Helle-Valle, Thomas; Lunde, Ketil; Hopp, Einar; Vartdal, Trond; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Global strain gjenspeiler infarktstørrelsen hos pasienter med gjennomgått hjerteinfarkt. Kontraktil funksjon i 3 dimensjoner. Norsk Cardiologisk Selskap Vårmøte; 2007-05-03 - 2007-05-05
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42 Gjesdal, Ola; Helle-Valle, Thomas; Lunde, Ketil; Hopp, Einar; Vartdal, Trond; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Global strain reflects the extent of scar in patients with myocardial infarcts. A comparison of longitudinal, circumferential and radial strain measurements. ESC Congress; 2007-09-01 - 2007-09-05
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43 Gjesdal, Ola; Hopp, Einar; Vartdal, Trond; Lunde, Ketil; Helle-Valle, Thomas; Aakhus, Svend; Smith, Hans-Jørgen; Ihlen, Halfdan; Edvardsen, Thor.
Global longitudinal strain by two-dimensional speckle tracking echocardiography is closely related to myocardial infarct size in chronic ischaemic heart disease. Clinical Science 2007 ;Volum 113. s. 287-296
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44 Helle-Valle, Thomas; Remme, Espen W.; Lyseggen, Erik; Vartdal, Trond; Pettersen, Eirik; Opdahl, Anders; Smith, Hans-Jørgen; Osman, NF; Lunde, Ketil; Edvardsen, Thor; Smiseth, Otto A..
Combined assessment of left ventricular strain and rotation - A novel approach for assessment of function in infarcted myocardium and its border zones. AHA Scientific Sessions; 2007-11-04 - 2007-11-07
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45 Opdahl, Anders; Helle-Valle, Thomas; Remme, Espen W.; Vartdal, Trond; Pettersen, Eirik; Lunde, Ketil; Edvardsen, Thor; Smiseth, Otto A..
Apical rotation by speckle tracking echocardiography - a simplified bedside surrogate for left ventricular twist. ESC Congress; 2007-09-01 - 2007-09-05
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46 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas; Vartdal, Trond; Pettersen, Eirik; Elstad, Maja; Edvardsen, Thor; Walløe, Lars; Smiseth, Otto A..
Early Diastolic Mitral Annulus Lengthening Velocity Reflects Coupling between Systolic and Diastolic Function. AHA Scientific Sessions; 2007-11-04 - 2007-11-07
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47 Opdahl, Anders; Remme, Espen W.; Helle-Valle, Thomas; Vartdal, Trond; Pettersen, Eirik; Elstad, Maja; Edvardsen, Thor; Walløe, Lars; Smiseth, Otto A..
Load-dependency of early-diastolic mitral annulus velocity: the role of systolic function. ESC Congress; 2007-09-01 - 2007-09-05
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48 Pettersen, Eirik; Helle-Valle, Thomas; Edvardsen, Thor; Lindberg, Harald; Smith, Hans-Jørgen; Smevik, Bjarne; Smiseth, Otto A.; Andersen, Kai.
Contraction pattern of the systemic right ventricle - Shift from longitudinal to circumferential shortening and absent global ventricular torsion. Journal of the American College of Cardiology 2007 ;Volum 49. s. 2450-2456
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49 Remme, Espen W.; Lyseggen, Erik; Helle-Valle, Thomas; Opdahl, Anders; Pettersen, Eirik; Vartdal, Trond; Ragnarsson, Asgrimur; Ihlen, Halfdan; Edvardsen, Thor; Smiseth, Otto A..
Biphasic tissue velocity waves prior to and after ejection caused by valve closure. AHA Scientific Sessions; 2007-11-04 - 2007-11-07
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50 Smedsrud, Marit Kristine; Remme, Espen W.; Lyseggen, Erik; Helle-Valle, Thomas; Gjesdal, Ola; Smith, Hans-Jørgen; Smiseth, Otto A.; Edvardsen, Thor.
Apical rocking in patients with myocardial infarction. Euroecho; 2007-12-05 - 2007-12-08
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