Publications by authors named "Per Ask"

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Brain endothelial permeability, transport, and flow assessed over 10 orders of magnitude using the in situ brain perfusion technique.
Quentin R Smith, Haritha Mandula, Jagan Mohan R Parepally, Jun Oki, Fancy Thomas, Per Ask

Fluids Barriers CNS· December 2024

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Assessment of aortic valve stenosis severity using intelligent phonocardiography.
Arash Gharehbaghi, Inger Ekman, Per Ask, Eva Nylander, Birgitta Janerot-Sjoberg

Int J Cardiol· November 2015

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A novel method for discrimination between innocent and pathological heart murmurs.
Arash Gharehbaghi, Magnus Borga, Birgitta Janerot Sjöberg, Per Ask

Med Eng Phys· July 2015

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Detection of systolic ejection click using time growing neural network.
Arash Gharehbaghi, Thierry Dutoit, Per Ask, Leif Sörnmo

Med Eng Phys· April 2014

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Preference for cannibalism and ontogenetic constraints in competitive ability of piscivorous top predators.
Pär Byström, Per Ask, Jens Andersson, Lennart Persson

PLoS One· March 2014

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Properties of screen printed electrocardiography smartware electrodes investigated in an electro-chemical cell.
Linda Rattfält, Fredrik Björefors, David Nilsson, Xin Wang, Petronella Norberg, Per Ask

Biomed Eng Online· July 2013

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NovaMedTech - a regional program for supporting new medical technologies in personalized health care.
Per Ask, Kristina Ekstrand, Peter Hult, Maria Lindén, Nils-Erik Pettersson

Stud Health Technol Inform· September 2012

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Heart sounds are altered by open cardiac surgery.
Anita Hurtig-Wennlöf, Christer Ahlstrom, Rigmor Egerlid, Marie Resare, Per Ask, Peter Rask

Exp Clin Cardiol· July 2011

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A rotating cylinder phantom for flow and tissue color Doppler testing.
Andrew Walker, Egil Henriksen, Ivar Ringqvist, Per Ask

Ultrasound Med Biol· November 2009

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Light limitation of nutrient-poor lake ecosystems.
Jan Karlsson, Pär Byström, Jenny Ask, Per Ask, Lennart Persson

Nature· July 2009

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Whole-lake estimates of carbon flux through algae and bacteria in benthic and pelagic habitats of clear-water lakes.
Jenny Ask, Jan Karlsson, Lennart Persson, Per Ask, Par Byström

Ecology· July 2009

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Use of signal analysis of heart sounds and murmurs to assess severity of mitral valve regurgitation attributable to myxomatous mitral valve disease in dogs.
Ingrid Ljungvall, Christer Ahlstrom, Katja Höglund, Peter Hult, Clarence Kvart, Per Ask

Am J Vet Res· May 2009

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Contrast biases the autocorrelation phase shift estimation in Doppler tissue imaging.
Marcus Ressner, Tomas Jansson, Jonny Cedefamn, Per Ask, Birgitta Janerot-Sjoberg

Ultrasound Med Biol· March 2009

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Assessment of suspected aortic stenosis by auto mutual information analysis of murmurs.
Christer Ahlstrom, Per Ask, Peter Rask, Jan-Erik Karlsson, Eva Nylander

Annu Int Conf IEEE Eng Med Biol Soc· April 2008

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Electrical properties of textile electrodes.
Linda Rattfalt, Michel Chedid, Peter Hult, Maria Lindén, Per Ask

Annu Int Conf IEEE Eng Med Biol Soc· March 2008

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Electrical characteristics of conductive yarns and textile electrodes for medical applications.
Linda Rattfält, Maria Lindén, Peter Hult, Lena Berglin, Per Ask

Med Biol Eng Comput· December 2007

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Time-frequency and complexity analyses for differentiation of physiologic murmurs from heart murmurs caused by aortic stenosis in Boxers.
Katja Höglund, Christer H G Ahlstrom, Jens Häggström, Per N A Ask, P H Peter Hult

Am J Vet Res· September 2007

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Backscattered ultrasound from contrast microbubbles: effects of tissue and bubble interaction.
Marcus Ressner, Adriana Kvikliene, Lars Hoff, Rytis Jurkonis, Tomas Jansson, Per Ask

Conf Proc IEEE Eng Med Biol Soc· May 2007

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Feature extraction for systolic heart murmur classification.
Christer Ahlstrom, Peter Hult, Peter Rask, Jan-Erik Karlsson, Eva Nylander, Per Ask

Ann Biomed Eng· November 2006

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Effects of ultrasound contrast agents on Doppler tissue velocity estimation.
Marcus Ressner, Lars-Ake Brodin, Tomas Jansson, Lars Hoff, Per Ask

J Am Soc Echocardiogr· February 2006

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Noninvasive investigation of blood pressure changes using the pulse wave transit time: a novel approach in the monitoring of hemodialysis patients.
Christer Ahlstrom, Anders Johansson, Fredrik Uhlin, Toste Länne, Per Ask

J Artif Organs· January 2006

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Modelling of nonlinear effects and the response of ultrasound contrast micro bubbles: simulation and experiment.
Adriana Kvikliene, Rytis Jurkonis, Marcus Ressner, Lars Hoff, Tomas Jansson, Per Ask

Ultrasonics· April 2004

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Accuracy of spectral Doppler flow and tissue velocity measurements in ultrasound systems.
Andrew Walker, Eva Olsson, Bengt Wranne, Ivar Ringqvist, Per Ask

Ultrasound Med Biol· January 2004

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Net pressure gradients in aortic prosthetic valves can be estimated by Doppler.
Odd Bech-Hanssen, Peter Gjertsson, Erik Houltz, Bengt Wranne, Per Ask

J Am Soc Echocardiogr· August 2003

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[The 3G net and "pensioners' computers" can help to solve problems in health care].
Per Ask, Sture Hägglund, Jan Olsson, Nils-Erik Pettersson, Bengt-Arne Sjöqvist

Lakartidningen· April 2003

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