Halfdan Ihlen

6.2k total citations · 2 hit papers
78 papers, 4.9k citations indexed

About

Halfdan Ihlen is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Halfdan Ihlen has authored 78 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Cardiology and Cardiovascular Medicine, 44 papers in Radiology, Nuclear Medicine and Imaging and 16 papers in Surgery. Recurrent topics in Halfdan Ihlen's work include Cardiovascular Function and Risk Factors (48 papers), Cardiac Imaging and Diagnostics (43 papers) and Cardiac Valve Diseases and Treatments (25 papers). Halfdan Ihlen is often cited by papers focused on Cardiovascular Function and Risk Factors (48 papers), Cardiac Imaging and Diagnostics (43 papers) and Cardiac Valve Diseases and Treatments (25 papers). Halfdan Ihlen collaborates with scholars based in Norway, India and Denmark. Halfdan Ihlen's co-authors include Thor Edvardsen, Otto A. Smiseth, Erik Lyseggen, Thomas Helle-Valle, Hans Torp, Brage H. Amundsen, João A.C. Lima, Helge Skulstad, Stig Urheim and Asbjørn Støylen and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and European Heart Journal.

In The Last Decade

Halfdan Ihlen

78 papers receiving 4.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Noninvasive Myocardial Strain Measurement by Speckle Tracking Echocardiography

2006 1.0k citations Brage H. Amundsen, Thomas Helle-Valle et al. Journal of the American College of Cardiology profile →
New Noninvasive Method for Assessment of Left Ventricular Rotation

2005 546 citations Thomas Helle-Valle, Thor Edvardsen et al. profile →

Peers

Countries citing papers authored by Halfdan Ihlen

Since Specialization

Citations

This map shows the geographic impact of Halfdan Ihlen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Halfdan Ihlen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Halfdan Ihlen more than expected).

Fields of papers citing papers by Halfdan Ihlen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Halfdan Ihlen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Halfdan Ihlen. The network helps show where Halfdan Ihlen may publish in the future.

Co-authorship network of co-authors of Halfdan Ihlen

This figure shows the co-authorship network connecting the top 25 collaborators of Halfdan Ihlen. A scholar is included among the top collaborators of Halfdan Ihlen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Halfdan Ihlen. Halfdan Ihlen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Detection of Left Ventricular Dysfunction by Global Longitudinal Systolic Strain in Patients with Chronic Aortic Regurgitation 2011 ·Journal of the American Society of Echocardiography ·Marit Kristine Smedsrud, Eirik Pettersen, Ola Gjesdal, Jan Svennevig, Kai Andersen, Halfdan Ihlen, Thor Edvardsen	70
2	Diagnostic Capability and Reproducibility of Strain by Doppler and by Speckle Tracking in Patients With Acute Myocardial Infarction 2009 ·JACC. Cardiovascular imaging ·Benthe Sjøli, Stein Ørn, Bjørnar Grenne, Halfdan Ihlen, Thor Edvardsen, Harald Brunvand	116
3	Noninvasive Separation of Large, Medium, and Small Myocardial Infarcts in Survivors of Reperfused ST-Elevation Myocardial Infarction 2008 ·Circulation Cardiovascular Imaging ·Ola Gjesdal, Thomas Helle-Valle, Einar Hopp, Ketil Lunde, Trond Vartdal, Svend Aakhus, (unknown), Halfdan Ihlen, Thor Edvardsen	105
4	Grading of Myocardial Dysfunction by Tissue Doppler Echocardiography 2006 ·Journal of the American College of Cardiology ·Helge Skulstad, Stig Urheim, Thor Edvardsen, (unknown), Erik Lyseggen, Trond Vartdal, Halfdan Ihlen, Otto A. Smiseth	80
5	Noninvasive Myocardial Strain Measurement by Speckle Tracking Echocardiography breakdown → 2006 ·Journal of the American College of Cardiology ·Brage H. Amundsen, Thomas Helle-Valle, Thor Edvardsen, Hans Torp, (unknown), Erik Lyseggen, Asbjørn Støylen, Halfdan Ihlen, João A.C. Lima, Otto A. Smiseth, Stig A. Slørdahl	1008
6	Clinical and echocardiographic assessment of the Medtronic Advantage aortic valve prosthesis: the Scandinavian multicentre, prospective study 2006 ·Heart ·Rune Haaverstad, Nicola Vitale, (unknown), (unknown), Arve Tromsdal, Peter Skov Olsen, Lars Køber, Halfdan Ihlen, Kjell Arne Rein, J L Svennevig	5
7	Regional myocardial work by strain Doppler echocardiography and LV pressure: a new method for quantifying myocardial function 2005 ·American Journal of Physiology-Heart and Circulatory Physiology ·Stig Urheim, Stein Inge Rabben, Helge Skulstad, Erik Lyseggen, Halfdan Ihlen, Otto A. Smiseth	40
8	Tissue Doppler imaging for the diagnosis of coronary artery disease 2004 ·Current Opinion in Cardiology ·Otto A. Smiseth, Asbjørn Støylen, Halfdan Ihlen	22
9	Detection of ischemia and new insight into left ventricular physiology by strain Doppler and tissue velocity imaging: Assessment during coronary bypass operation of the beating heart 2004 ·Journal of the American Society of Echocardiography ·Helge Skulstad, (unknown), Thor Edvardsen, Kjell Arne Rein, Tor Inge Tønnessen, Per Kristian Hol, Erik Fosse, Halfdan Ihlen	33
10	N-terminal proatrial natriuretic peptide in primary care: relation to echocardiographic indices of cardiac function in mild to moderate cardiac disease 2003 ·International Journal of Cardiology ·Christian Hall, Halfdan Ihlen, Vernon Bonarjee, Kenneth Dickstein, John Kjekshus	4
11	Regional myocardial systolic function during acute myocardial ischemia assessed by strain Doppler echocardiography 2001 ·Journal of the American College of Cardiology ·Thor Edvardsen, Helge Skulstad, S. Aakhus, Stig Urheim, Halfdan Ihlen	212
12	Diastolic Flow Pattern in the Normal Left Ventricle 1999 ·Journal of the American Society of Echocardiography ·Olaf Rødevand, Reidar Bjørnerheim, Thor Edvardsen, Otto A. Smiseth, Halfdan Ihlen	52
13	Reversal of Intraventricular Flow Propagation During Isovolumic Relaxation: A Marker of Anterior Wall Dysfunction 1999 ·Journal of the American Society of Echocardiography ·Thor Edvardsen, Olaf Rødevand, Svend Aakhus, Reidar Bjørnerheim, Halfdan Ihlen	8
14	Left ventricular mass assessed by three‐dimensional echocardiography using rotational acquisition 1997 ·Clinical Cardiology ·Olaf Rødevand, Reidar Bjørnerheim, Odd Kolbjørnsen, Halfdan Ihlen, John Kjekshus	12
15	Cardiopulmonary sequelae after treatment for Hodgkin's disease: Increased risk in females? 1996 ·Annals of Oncology ·May Brit Lund, Johny Kongerud, J Bøe, Ole Nome, A. F. Abrahamsen, Halfdan Ihlen, K Forfang	34
16	Surgical elimination of an atrial septal aneurysm causing cerebral embolism 1996 ·The Annals of Thoracic Surgery ·(unknown), Harald Lindberg, Halfdan Ihlen	2
17	A new colour M-mode index of diastolic filling compared with radionuclide ventriculography 1995 ·International Journal of Cardiology ·Torkel Steen, K. Rootwelt, Cecilie Risöe, (unknown), Halfdan Ihlen	7
18	Intracavitary filling pattern in the failing left ventricle assessed by color M-mode Doppler echocardiography 1994 ·Journal of the American College of Cardiology ·Marie Stugaard, Cecilie Risöe, Halfdan Ihlen, Otto A. Smiseth	72
19	Effects of beta-adrenergic blockade on left ventricular relaxation and filling dynamics in coronary artery disease: a pulsed Doppler echocardiographic study 1988 ·European Heart Journal ·Yngvar Myreng, Halfdan Ihlen, S Nitter‐Hauge	5
20	Quantification of mitral regurgitation by Doppler echocardiography 1987 ·European Heart Journal ·(unknown), Halfdan Ihlen, E Myhre, K. Levorstad, S Nitter‐Hauge	20

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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