Johannes Jan Struijk

Research output

Research output per year 1995 2007 2008 2009 2010 2011 2012 2014 2015 2016 2017 2018 2019 2025

• 112 Journal article
• 45 Conference article in Journal
• 35 Conference abstract in journal
• 31 Article in proceeding
• 76 More
  • 27 Conference abstract in proceeding
  • 22 Patent
  • 15 Conference abstract for conference
  • 3 Book chapter
  • 3 Poster
  • 3 Comment/debate
  • 1 Anthology
  • 1 Contribution to newspaper - Comment/debate
  • 1 Review article

Research output per year

Research output per year

Search results

• 2024

  Porcine Model for Validation of Noninvasive Estimation of Pulmonary Hypertension

  Agam, A., Mohammed Alsadi, A., Oliver Kandel Damgaard, G., Chin Tial Siakhel, B., Agam, A., Søgaard, P., Kjærgaard, B., Giordano, N., Korsgaard, E., Struijk, J. & Emil Schmidt, S., 1 Dec 2024, In: Computing in Cardiology. 51, 4 p., ID 304.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File

  • Lung Circulation 100%
  • Mortality Rate 100%
  • Electrocardiogram 100%
  • Porcine Model 100%
  • RR Interval 100%
• 2022

  Shear Wave Imaging Framework for Quantification of Myocardial Tissue Properties

  Andersen, M. S., Søgaard, P., Schmidt, S. E. & Struijk, J. J., 2022, In: Computing in Cardiology. 49, p. 1-4 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File

  • Myocardial Infarction 100%
  • Cardiovascular Disease 100%
  • Pathophysiology 100%
  • Left Bundle Branch Block 100%
  • Cardiovascular System Examination 100%
  18 Downloads (Pure)
• 2019

  Autoregressive Whitening Filter for Detection of Coronary Artery Disease Based on Phonocardiography

  Larsen, B. S., Winther, S., Nissen, L., Diederichsen, A., Bøttcher, M., Struijk, J. J., Christensen, M. G. & Schmidt, S. E., Sept 2019, In: Computing in Cardiology. 46, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  59 Downloads (Pure)

• Autoregressive Whitening Filtering of Phonocardiography Signals for Detection of Coronary Artery Disease

  Larsen, B. S., Winther, S., Nissen, L., Diederichsen, A., Bottcher, M., Struijk, J., Christensen, M. G. & Emil Schmidt, S., Sept 2019, In: Computing in Cardiology. 46

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File

  • Coronary Artery Disease 100%
  • Spectroscopy 50%
  • Flatness 25%
  • Whitening Process 14%
  • Average Power Density 14%
  1 Citation (Scopus)

  70 Downloads (Pure)

• Comparison of Cardiotocography and Fetal Heart Rate Estimators Based on Non-Invasive Fetal ECG

  Sæderup, R. G., Zimmermann, H., Eiríksdóttir, D. H., Hansen, J., Struijk, J. J. & Schmidt, S., Sept 2019, In: Computing in Cardiology. 46, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  8 Citations (Scopus)

  73 Downloads (Pure)

• Quality Assessment of Maternal and Fetal Cardiovascular Sounds Recorded from the Skin near the Uterine Arteries During Pregnancy

  Eiriksdóttir, D. H., Sæderup, R. G., Riknagel, D., Zimmermann, H., Plocharski, M., Hansen, J., Struijk, J. J. & Schmidt, S. E., Sept 2019, In: Computing in Cardiology. 46, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  2 Citations (Scopus)

  76 Downloads (Pure)

• Visualization of the Multichannel Seismocardiogram

  Munck, K., Sørensen, K., Struijk, J. J. & Schmidt, S. E., Sept 2019, In: Computing in Cardiology. 46, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  94 Downloads (Pure)
• 2018

  Heart Sounds Obtained With Noncontact Continuous-Wave Echo Doppler

  Struijk, J. J., Eiriksdóttir, D. H., Pálsdóttir, Á. A. & Schmidt, S. E., 2018, In: Computing in Cardiology. 45, 3 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  160 Downloads (Pure)
• 2017

  Challenges in Using Seismocardiography for Blood Pressure Monitoring

  Sørensen, K., Verma, A. K., Blaber, A., Zanetti, J., Schmidt, S., Struijk, J. J. & Tavakolian, K., 14 Sept 2017, In: Computing in Cardiology. 44, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  10 Citations (Scopus)

  294 Downloads (Pure)

• Correlations of first and second heart sounds with age, sex, and body mass index

  Larsen, B. S., Winther, S., Bøttcher, M., Nissen, L., Struijk, J. J. & Schmidt, S., 2017, In: Computing in Cardiology. 44, 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  6 Citations (Scopus)

  214 Downloads (Pure)
• 2016

  Automatic segmentation of mitral leaflet movement in Doppler Tissue M-Mode ultrasound

  Sørensen, K., Schmidt, S. E., Sørensen, P. L., Korsager, A. S., Melgaard, J., Søgaard, P. & Struijk, J. J., 2016, In: Computing in Cardiology. 43, 4 p., 40-459.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  1 Citation (Scopus)

• A vectorcardiographic evaluation of the consensus criteria for early repolarization

  Sørensen, P. L., Sørensen, K., Melgaard, J., Struijk, J. J., Hansen, S. M., Kanters, J. K., Nielsen, J. B., Svendsen, J. H., Haunsø, S., Køber, L., Holst, A. G., Pietersen, A., Torp-Pedersen, C., Lippert, F. K. & Graff, C., 2016, In: Computing in Cardiology. 43, p. 201-204 61-436.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

• Body surface mapping of the mechanical cardiac activity

  Munck, K., Hansen, B. D., Jacobsen, N., Pilgaard, L. P., Schmidt, S. E., Sørensen, K. & Struijk, J. J., 2016, In: Computing in Cardiology. 43, p. 661-664 193-348.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

  File
  2 Citations (Scopus)

  72 Downloads (Pure)

• Effect of sample rate on saECG spectrum

  Melgaard, J., Graff, C., Sørensen, P. L., Sørensen, K., Schmidt, S. & Struijk, J. J., 2016, In: Computing in Cardiology. 43, p. 1061-1063 306-499.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access

• Electrocardiographic measurements of the QT interval during embryonic development in fertilized chicken eggs

  Bhuiyan, T. A., Sevcencu, C., Struijk, J. J., Kanters, J. K. & Graff, C., 2016, In: Computing in Cardiology. 43, p. 1053-1055 304-444.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  2 Citations (Scopus)

• Feature tracking algorithm for circumferential strain using high frame rate echocardiography

  Andersen, M. V., Moore, C., Schmidt, S. E., Søgaard, P., Struijk, J. J., Kisslo, J. & von Ramm, O. T., 2016, In: Computing in Cardiology. 43, p. 885-888 257-427.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  3 Citations (Scopus)

• Heart-valve sounds obtained with a laser Doppler vibrometer

  Struijk, J. J., Munck, K., Hansen, B. D., Jacobsen, N., Pilgaard, L. P., Sørensen, K. & Schmidt, S. E., 2016, In: Computing in Cardiology. 43, p. 197-199 59-456.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  4 Citations (Scopus)

• Temporal alignment of asynchronously sampled biomedical signals

  Schmidt, S. E., Emerek, K. J. G., Jensen, A. S., Graff, C., Melgaard, J., Søgaard, P., Sørensen, K. & Struijk, J. J., 2016, In: Computing in Cardiology. 43, 4 p., 14-311.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  5 Citations (Scopus)
• 2015

  Adaptation of rabbit ventricular cell model to reproduce action potentials in isolated papillary muscle

  Jensen, A. S., Pennisi, C. P., Sevcencu, C., Christensen, J. B., Kristiansen, J. E. & Struijk, J. J., 2015, In: Computing in Cardiology. 42, p. 429-432

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  1 Citation (Scopus)

• Model-based analysis of the effects of thioridazine enantiomers on the rabbit papillary action potential

  Jensen, A. S., Pennisi, C. P., Sevcencu, C., Christensen, J. B., Kristiansen, J. E. & Struijk, J. J., 2015, In: Computing in Cardiology. 42, p. 1089-1092

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
• 2014

  Automatic J-point location in subjects with electrocardiographic early repolarization

  Melgaard, J., Struijk, J., Kanters, J. K., Schmidt, S., Jensen, A. S., Hansen, J., Bhuiyan, T. A. & Graff, C., 2014, In: Computing in Cardiology. 41, p. 585-588

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  3 Citations (Scopus)

• Coherence as a measure of noise in the ECG

  Struijk, J., Graff, C., Kanters, J. K., Xue, J. Q., Jensen, A. S. & Schmidt, S., 2014, In: Computing in Cardiology. 41, p. 37-39

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  2 Citations (Scopus)

• Effects of cardiac resynchronization therapy on the first heart sound energy

  Jensen, A. S., Schmidt, S., Struijk, J., Hansen, J., Graff, C., Melgaard, J., Bhuiyan, T. A., Emerek, K. J. G. & Søgaard, P., 2014, In: Computing in Cardiology. 41, p. 29-32

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  6 Citations (Scopus)

• Repolarization effects of sertindole manifest as T-wave flatness on the ECG

  Bhuiyan, T. A., Graff, C., Kanters, J. K., Nielsen, J. & Struijk, J., 2014, In: Computing in Cardiology. 41, p. 381-384

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  2 Citations (Scopus)

• Three dimensional apex seismocardiography

  Schmidt, S., Jensen, A. S., Melgaard, J., Graff, C., Hansen, J., Bhuiyan, T. A. & Struijk, J., 2014, In: Computing in Cardiology. 41, p. 1105-1108

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

  Open Access
  1 Citation (Scopus)
• 2013

  Flattening of the electrocardiographic T-wave is a sign of proarrhythmic risk and a reflection of action potential triangulation

  Bhuiyan, T. A., Graff, C., Kanters, J. K., Thomsen, M. B. & Struijk, J., 2013, In: Computing in Cardiology. 40, p. 353-356

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  4 Citations (Scopus)
• 2012

  The chest is a significant collector of ambient noise in heart sound recordings

  Schmidt, S., Zimmermann, N. H., Hansen, J., Møller, H., Hammershøi, D. & Struijk, J., 2012, In: Computing in Cardiology. 39, p. 741-744

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  5 Citations (Scopus)

• Triangulation of the monophasic action potential causes flattening of the electrocardiographic T-wave

  Bhuiyan, T. A., Graff, C., Thomsen, M. B. & Struijk, J., 2012, In: Computing in Cardiology. 39, p. 757-760

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  2 Citations (Scopus)
• 2011

  Coronary artery disease and low frequency heart sound signatures

  Schmidt, S., Hansen, J., Zimmermann, N. H., Hammershøi, D., Toft, E. & Struijk, J., 2011, In: Computing in Cardiology. 38, p. 481-484

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  31 Citations (Scopus)

• ECG-based estimation of area at risk in acute myocardial infarction

  Jensen, A. S., Grove, U. S. L., Hansen, T. W., Andersen, M. P., Terkelsen, C. J., Bøtker, H. E., Kaltoft, A., Nielsen, S. S. & Struijk, J., 2011, In: Computing in Cardiology. 38, p. 413-416

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  3 Citations (Scopus)

• Masters program in biomedical engineering and informatics: Research-based teaching and teaching-based research

  Struijk, J., Elberg, P. B. & Andersen, O. K., 2011, In: International Federation for Medical and Biological Engineering Proceedings. 34, p. 180-182

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

• Stable hydrophilic polydimethylsiloxane surfaces produced by plasma treatment for enhanced cell adhesion

  Jensen, C., Gurevich, L., Patriciu, A., Struijk, J., Zachar, V. & Pennisi, C. P., 2011, In: International Federation for Medical and Biological Engineering Proceedings. 34, p. 105-108

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  11 Citations (Scopus)

• System for acquisition of weak murmurs related to coronary artery diseases

  Hansen, J., Zimmermann, N. H., Schmidt, S., Hammershøi, D. & Struijk, J., 2011, In: Computing in Cardiology. 38, p. 213-216

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  9 Citations (Scopus)

• Z-score transformation of T-wave morphology values to a standardized scale

  Graff, C., Nielsen, J., Kanters, J. K., Matz, J., Schmidt, S., Toft, E. & Struijk, J., 2011, In: Computing in Cardiology. 38, p. 737-740

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  2 Citations (Scopus)
• 2010

  Comparison of sample entropy and AR-models for heart sound-based detection of coronary artery disease

  Schmidt, S., Hansen, J., Hansen, C. H., Toft, E. & Struijk, J., 2010, In: Computing in Cardiology. 37, p. 385-388

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  12 Citations (Scopus)
• 2009

  Does sample entropy reflect nonlinear characteristics of cardiovascular murmurs?

  Schmidt, S., Græbe, M., Toft, E. & Struijk, J., 2009, In: Computers in Cardiology. 36, p. 685-688 4 p.

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  3 Citations (Scopus)

• T-wave morphology as a covariate in drug-induced QTc prolongation

  Graff, C., Matz, J., Andersen, M. P., Kanters, J. K., Nielsen, J., Xue, J. Q., Toft, E. & Struijk, J., 2009, In: Computers in Cardiology. 36, p. 589-592

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
• 2008

  Prediction of epileptic seizures for on-demand vagus nerve stimulation

  Nielsen, K. R., Sevcencu, C., Rasmussen, A. & Struijk, J., 2008, In: International Federation for Medical and Biological Engineering Proceedings. 20, p. 290-293

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  3 Citations (Scopus)

• Segmentation of heart sound recordings from an electronic stethoscope by a duration dependent Hidden Markov Model

  Schmidt, S., Toft, E., Holst-Hansen, C., Graff, C. & Struijk, J., 2008, In: Computers in Cardiology. 35, p. 345-348

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review

• Sensitivity of T-wave morphology and the QT interval to small drug-induced electrocardiographic changes

  Graff, C., Matz, J., Andersen, M. P., Kanters, J. K., Toft, E., Pehrson, S. & Struijk, J., 2008, In: Computers in Cardiology. 35, p. 319-322

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  5 Citations (Scopus)

• Vagus nerve activity based prediction of epileptic seizures in rats

  Nielsen, K. R., Sevcencu, C. & Struijk, J., 2008, In: Biomedizinische Technik. 53, Suppl. 1, p. 13-15

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
• 2007

  A robust method for quantification of IKr-related T-wave morphology abnormalities

  Andersen, M. P., Xue, J. Q., Graff, C., Hardahl, T. B., Toft, E., Kanters, J. K., Christiansen, M., Jensen, H. K. & Struijk, J., 2007, In: Computers in Cardiology. 34, p. 341-344

  Research output: Contribution to journal › Conference article in Journal › Research
  35 Citations (Scopus)

• Detection of coronary artery disease with an electronic stethoscope

  Schmidt, S., Holst-Hansen, C., Graff, C., Toft, E. & Struijk, J., 2007, In: Computers in Cardiology. 34, p. 757-760

  Research output: Contribution to journal › Conference article in Journal › Research › peer-review
  29 Citations (Scopus)

• QT interval prolongation during rapid fall in blood glucose in type 1 diabetes

  Christensen, T. F., Lewinsky, I., Kristensen, L. E., Randløv, J., Poulsen, J. U., Eldrup, E., Pater, C., Hejlesen, O. K. & Struijk, J., 2007, In: Computers in Cardiology. 34, p. 345-348

  Research output: Contribution to journal › Conference article in Journal › Research
  7 Citations (Scopus)
• 2005

  Classification of the Long QT Syndrome based on discriminant analysis of T-wave morphology

  Struijk, J., Kanters, J. K., Andersen, M. P., Hardahl, T. B., Graff, C., Christiansen, M. & Toft, E., 2005, In: Computers in Cardiology. 32, p. 511-514

  Research output: Contribution to journal › Conference article in Journal › Research
  4 Citations (Scopus)