Publications for Christer Ahlström
Co-author map based on ISI articles 2007-
Journal Articles
Christer Ahlström, Marcus Nystrom, Kenneth Holmqvist, Carina Fors, David Sandberg, Anna Anund, Goran Kecklund and Torbjorn Akerstedt
Fit-for-duty test for estimation of drivers sleepiness level: Eye movements improve the sleep/wake predictor
Transportation Research Part C, 2013, 26, 20-32.
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A. Hurtig-Wennlof, Christer Ahlström, R. Egerlid, M. Resare, Per Ask and P. Rask
Heart sounds are altered by open cardiac surgery
Experimental and Clinical Cardiology, 2009, 14(2), 18-20.
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Ingrid Ljungvall, Christer Ahlström, Katja Hoglund, Peter Hult, Clarence Kvart, Michele Borgarelli, Per Ask and Jens Haggstrom
Use of signal analysis of heart sounds and murmurs to assess severity of mitral valve regurgitation attributable to myxomatous mitral valve disease in dogs
AMERICAN JOURNAL OF VETERINARY RESEARCH, 2009, 70(5), 604-613.
Web of Science® Times Cited: 6 |
Christer Ahlström, Toste Länne, Per Ask and Anders Johansson
A method for accurate localization of the first heart sound and possible applications
Physiological Measurement, 2008, 29(3), 417-428.
Fulltext  Web of Science® Times Cited: 11 |
Ingrid Ljungvall, Christer Ahlström, Katja Höglund, Peter Hult, Clarence Kvart, Michele Borgarelli, Per Ask and Jens Häggström
Assessing mitral regurgitation attributable to myxomatous mitral valve disease in dogs using signal analysis of heart sounds and murmurs
, 2008, , .
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Christer Ahlström, Katja Höglund, Peter Hult, Jens Häggström, Clarence Kvart and Per Ask
Assessing Aortic Stenosis using Sample Entropy of the Phonocardiographic Signal in Dogs
IEEE Transactions on Biomedical Engineering, 2008, 55(8), 2107-2109.
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K. Hoglund, Christer Ahlström, J. Haggstrom, Per Ask, Peter Hult and C. Kvart
Time-frequency and complexity analyses for differentiation of physiologic murmurs from heart murmurs caused by aortic stenosis in boxers
American Journal of Veterinary Research, 2007, 68(9), 962-969.
Web of Science® Times Cited: 10 |
Christer Ahlström, Anders Johansson, Peter Hult and Per Ask
Chaotic dynamics of respiratory sounds
Chaos, Solitons & Fractals, 2006, 29(5), 1054-1062.
Web of Science® Times Cited: 5 |
Anders Johansson, Christer Ahlström, Toste Länne and Per Ask
Pulse wave transit time for monitoring respiration rate
Medical and Biological Engineering and Computing, 2006, 44(6), 471-478.
Web of Science® Times Cited: 13 |
Christer Ahlström, Peter Hult, Peter Rask, Jan-Erik Karlsson, Eva Nylander, Ulf Dahlström and Per Ask
Feature Extraction for Systolic Heart Murmur Classification
Annals of Biomedical Engineering, 2006, 34(11), 1666-1677.
Web of Science® Times Cited: 28 |
Christer Ahlström, Anders Johansson, Fredrik Uhlin, Toste Länne and Per Ask
Noninvasive investigation of blood pressure changes using the pulse wave transit time: A novel approach in the monitoring of hemodialysis patients
Journal of Artificial Organs, 2005, 8(3), 192-197.
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Christer Ahlström, Olle Liljefeldt, Peter Hult and Per Ask
Heart sound cancellation from lung sound recordings using recurrence time statistics and nonlinear prediction
IEEE Signal Processing Letters, 2005, 12(12), 812-815.
Fulltext Web of Science® Times Cited: 9 |
Conference Articles
Christer Ahlström, Anders Johansson, Toste Länne and Per Ask
Monitorering av andning and blodtrycksförändringar baserat på EKG och hjärtljud
Medicinteknik dagarna,2007, 2007.
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Christer Ahlström, Per Ask, Peter Rask, Jan-Erik Karlsson, Eva Nylander, Ulf Dahlström and Peter Hult
Assessment of Suspected Aortic Stenosis by Auto Mutual Information Analysis of Murmurs
Engineering in Medicine and Biology Society, 2007. EMBS 2007, 2007.
Web of Science® Times Cited: 2
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Christer Ahlström, Peter Hult, P Rask, J-E Karlsson, Eva Nylander, Ulf Dahlström and Per Ask
Using the intelligent stethoscope for extraction of features for systolic heart murmur classification
World Congress on Medical Physics and Biomedical Engineering WC2006,2006, 2006.
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K Höglund, Christer Ahlström, J Häggström and C Kvart
Spectral analysis of heart murmurs in boxer dogs
16th European College of veterinary Internal medicine - Companion Animals Congress ECVIM-CA,2006, 2006.
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Christer Ahlström, K Höglund, Peter Hult, J Häggström, C Kvart and Per Ask
Distinguishing Innocent Murmurs from Murmurs caused by Aortic Stenosis by Recurrence Quantification Analysis
3rd International Conference on Biosignal Processing ICBP 2006,2006, 2006.
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Linda Rattfält, Christer Ahlström, Lena Berglin, Maria Lindén, Peter Hult, Per Ask and Urban Wiklund
A Canonical correlation approach to heart beat detection in textile ECG measurements
MEDSIP2006,2006, 2006.
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Christer Ahlström, Peter Hult and Per Ask
Thresholding distance plots using true recurrence points
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006, 2006.
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Christer Ahlström, Peter Hult and Per Ask
Detection of the 3rd Heart Sound using Recurrence Time Statistics
Proc. 31st IEEE Int. Conf. on Acoustics, Speech and Signal Processing, Toulouse, France, 2006, 2006.
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Peter Hult, Christer Ahlström, Linda Rattfält, Cecilia Hagström, Nils-Erik Pettersson and Per Ask
The intelligent stethoscope
EMBEC05,2005, 2005.
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Christer Ahlström, Peter Hult and Per Ask
Wheeze analysis and detection with non-linear phase-space embedding
Nordic Baltic Conference Biomedical Engineering and Medical Physics,2005, 2005.
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Peter Hult, Christer Ahlström, Linda Rattfält, Caroline Hagström, Nils-Erik Pettersson and Per Ask
The intelligent stethoscope as a tool in modern health care
Nordic Baltic Conference Biomedical Engineering and Medical Physics,2005, 2005.
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Christer Ahlström, Anders Johansson, Toste Länne and Per Ask
A respiration monitor based on electrocardiographic and photoplethysmographic sensor fusion
IEEE Engineering in Medical and Biological Society,2004, 2004.
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Christer Ahlström, Peter Hult, Birgitta Schmekel and Per Ask
Automatisk detektering av ronki med icke-linjära metoder
Svenska Läkaresällskapets riksstämma,2004, 2004.
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Christer Ahlström, Peter Hult, Birgitta Schmekel and Per Ask
Wheeze detection with nonlinear statespace embedding
International Lung Sound Association,2004, 2004.
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Ph.D. Theses
Licentiate Theses
Ph.D., Lic. Theses
