H
Halfdan Ihlen
Researcher at University of Oslo
Publications - 77
Citations - 6017
Halfdan Ihlen is an academic researcher from University of Oslo. The author has contributed to research in topics: Doppler echocardiography & Speckle tracking echocardiography. The author has an hindex of 33, co-authored 77 publications receiving 5827 citations. Previous affiliations of Halfdan Ihlen include Oslo University Hospital.
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Journal ArticleDOI
Noninvasive myocardial strain measurement by speckle tracking echocardiography: validation against sonomicrometry and tagged magnetic resonance imaging.
Brage H. Amundsen,Thomas Helle-Valle,Thor Edvardsen,Hans Torp,Jonas Crosby,Erik Lyseggen,Asbjørn Støylen,Halfdan Ihlen,Joao A.C. Lima,Otto A. Smiseth,Stig A. Slørdahl +10 more
TL;DR: Speckle tracking echocardiography provides accurate and angle-independent measurements of LV dimensions and strains and has potential to become a clinical bedside tool for quantifying myocardial strain.
Journal ArticleDOI
New Noninvasive Method for Assessment of Left Ventricular Rotation Speckle Tracking Echocardiography
Thomas Helle-Valle,Jonas Crosby,Thor Edvardsen,Erik Lyseggen,Brage Amundsen,Hans-Jørgen Smith,Boaz D. Rosen,João A. C. Lima,Hans Torp,Halfdan Ihlen,Otto A. Smiseth +10 more
TL;DR: It is demonstrated that regional LV rotation and torsion can be measured accurately by STE, suggesting a new echocardiographic approach for quantification of LV systolic function.
Journal ArticleDOI
Determination of cardiac output by Doppler echocardiography.
Halfdan Ihlen,Jan P. Amlie,J Dale,Kolbjørn Forfang,S Nitter-Hauge,J E Otterstad,S Simonsen,E Myhre +7 more
TL;DR: Cardiac output determined by Doppler echocardiography was compared with that determined by thermodilution at rest and during dobutamine infusion and by the Fick method at rest in patients with angina pectoris without valvular heart disease.
Journal ArticleDOI
Immunomodulating Therapy With Intravenous Immunoglobulin in Patients With Chronic Heart Failure
Lars Gullestad,Halfdan Aass,J G Fjeld,Lisbeth Wikeby,Arne K. Andreassen,Halfdan Ihlen,Svein Simonsen,John Kjekshus,Sigurd Nitter-Hauge,Thor Ueland,Egil Lien,Stig S. Frøland,Pål Aukrust +12 more
TL;DR: The main findings were that IVIG, but not placebo, induced a marked rise in plasma levels of the anti-inflammatory mediators interleukin (IL)-10, IL-1 receptor antagonist, and soluble tumor necrosis factor receptors.
Journal ArticleDOI
Regional myocardial systolic function during acute myocardial ischemia assessed by strain Doppler echocardiography
TL;DR: The new SDE approach might be a more accurate marker than TDE for detecting systolic regional myocardial dysfunction induced by LAD occlusion and reduced velocities in all septal segments during angioplasty.