Publications

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Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. & Fuglsang-Frederiksen, A. (2015). Detection of epileptic seizures with a modified heart rate variability algorithm based on Lorenz plot. Seizure - European Journal of Epilepsy, 24, 1-7. https://doi.org/10.1016/j.seizure.2014.11.004

Johansen, P., Sørensen, L., Christensen, J., Funder, J. A. & Nygaard, H. (2009). Determining Local Stresses and Forces in the Heart Valves through a new Dielectric Elctro Active Polymer based Strain Transducer. Poster session presented at 5th Biennial Meeting of the Society for Heart Valve Disease, Berlin, Germany.

Noor, M. A. (2022). Development and Characterization of a Novel Aortic Annuloplasty Ring for Aortic Valve Repair. [PhD dissertation, Aarhus University].

Jensen, M. B., Smerup, M. H. & Johansen, P. (2016). Development of a new Heart valve prosthesis concept for pediatric cardiac surgery. Abstract from 26th Annual Meeting SSRCTS, Geilo, Norway.

Jensen, M., Smerup, M. H. & Johansen, P. (2015). Development of a new valve prosthesis concept for infant cardiac surgery. Poster session presented at The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Jensen, M. Ø. J., Johansen, P. & Nygaard, H. (2008). Development of an implantable heart valve force transducer. In Proceedings of the ASME 2008 Summer Bioengineering Conference

Bechsgaard, T. K., Hønge, J. L., Laugesen, S., Nygaard, H., Nielsen, S. L. & Johansen, P. (2014). Development of force transducers for biomechanical assessment of aortic root surgery. In 7th World Congress of Biomechanics (WCB 2014): Abstracts Article T47 http://wcb2014.com/

Birkemose, M., Juul Møller, A., Lænsø Madsen, M., Brantlov, S., Sørensen, H., Overgaard, K. & Johansen, P. (2013). Electrode placement in bioimpedance spectroscopy. Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). https://doi.org/10.1109/EMBC.2013.6610178

Mikkelsen, E., Fuglsang-Frederiksen, A., Petersen, O. B., Johansen, P. & Uldbjerg, N. (2012). Electrohysterographic Characterization of Labor Contractions. http://phd.au.dk/fileadmin/grads.au.dk/HE/PhD_Day_2012/Revised_abstractbogen_10.01.2012.pdf

Mikkelsen, E., Johansen, P., Fuglsang-Frederiksen, A. & Uldbjerg, N. (2013). Electrohysterography of labor contractions: propagation velocity and direction. Acta Obstetricia et Gynecologica Scandinavica, 92(9), 1070-1078. https://doi.org/10.1111/aogs.12190

Ng, H. S., Hao, Q., Leung, T., Lawrence Wong, K. S., Nygaard, H., Hasenkam, J. M. & Johansen, P. (2008). Embolic Doppler ultrasound signal detection using continuous wavelet transform to detect multiple vascular emboli. Journal of Neuroimaging, 18(4), 388-95. https://doi.org/10.1111/j.1552-6569.2007.00211.x

Ng, H. S., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2006). Embolic Signal Detection Using Continuous and Discrete Wavelet Transform. Abstract from Advances in Innovative Technologies and Tissue Engineering for the Treatment of Heart Valve Disease, Hilton Head, United States.

Ng, H. S., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2006). Embolic Signal Detection Using Continuous and Discrete Wavelet Transform. Poster session presented at Advances in Innovative Technologies and Tissue Engineering for the Treatment of Heart Valve Disease, Hilton Head, United States.

Ng, H. S., Nygaard, H., Johansen, P., Hasenkam, J. M., Wong, K., Hao, Q. & Leung, T. (2008). Embolic Signals Detection Using Continuous Wavelet Transform Capable of Multiple Emboli Detection. Poster session presented at BMES Annual Fall Meeting, Los Angeles, United States.

Johansen, P., Tang, M., Andersen, H. R. & Nielsen-Kudsk, J. E. (2016). Establishing guidelines for valve-in-valve therapy predilatation stent fracturing. Abstract from 26th Annual Meeting SSRCTS, Geilo, Norway.

Merhi, Y., Lozano Montero, K., Johansen, P., Mantysalo, M. & Agarwala, S. (2025). Evaluating Piezoelectric Performance of Biodegradable PLLA Film and Its Application for Aortic Annuloplasty. https://chemrxiv.org/engage/chemrxiv/article-details/677788f9fa469535b99d3829

Noor, M. A., Skov, S. N. & Johansen, P. (2020). Evaluating Strain Measurements on the Mitral Valve Leaflets using an Optical Image System. Structural heart : the journal of the Heart Team, 4, 72. https://doi.org/10.1080/24748706.2020.1715165

Noor, M. A., Benhassen, L. L., Johansen, P. & Hasenkam, J. M. (2022). External aortic annuloplasty ring. Manuscript submitted for publication. (Patent No. PCT/EP2022/071334).

Rea, C. J., Foley, J., Johansen, P. & Sørensen, B. (2011). Factor XIII as a treatment in haemophilia A. Poster session presented at XXIII Congress of the International Society on Thrombosis and Haemostasis, Kyoto, Kyoto, Japan.

Marelli, L., Votta, E., Selmi, M., Ringgaard, S., Benhassen, L. L., Kim, W. Y. & Johansen, P. (2018). FEM methods for identification of constitutive parameters of the aortic root through reverse engineering. Poster session presented at 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Bechsgaard, T. K., Lading, T., Lindskow, T., Nygaard, H., Nielsen, S. L. & Johansen, P. (2015). Force Alterations in the Aortic Root after Reconstructive Surgery: An In Vitro Experiment. Abstract from BMES 2015 Annual Meeting, Tampa, Florida, United States. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=8

Jensen, M. Ø. J., Jensen, H., Nielsen, S. L., Smerup, M. H., Johansen, P., Yoganathan, A. P., Nygaard, H. & Hasenkam, J. M. (2007). Force Balance in the Mitral Valve Annulus: New Results from Novel Modalities and Measurement Techniques. Poster session presented at 17th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Johansen, P., Engholt, H., Tang, M., Nybo, R. F., Rasmussen, P. D. & Nielsen-Kudsk, J. E. (2017). Fracturing mechanics before valve-in-valve therapy of small aortic bioprosthetic heart valves. EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology, 13(9), e1026-e1031. https://doi.org/10.4244/EIJ-D-17-00245

Engholt, H., Rasmussen, P. D., Tang, M., Nielsen-Kudsk, J. E. & Johansen, P. (2017). Fracturing surgical bioprosthetic heart valves by high-pressure balloon dilatation in-vitro. Abstract from 27th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Noor, M. A., Nygaard, J. V., Johansen, P. & Hasenkam, J. M. (2018). Frequency Dependant Viscoelastic Properties of different Regions of Aorta. Poster session presented at 36th Annual Meeting. Danish Society for Biomedical Engineering, Vingsted, Denmark.

Ng, H. S., Nygaard, H., Hasenkam, J. M. & Johansen, P. (2009). Frequency modulation of microembolic signals in phases of cardiac cycles. Poster session presented at PhD Day, Århus, Denmark.

Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2017). Fully automated R-peak detection algorithm for patients with epilepsy: first step towards portable seizure detector. Clinical Neurophysiology, 128(9), e282.

Ng, H. S., Nygaard, H., Hasenkam, J. M. & Johansen, P. (2007). Gaseous emboli detection based on a dual-wavelet transform analysis. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 221(6), 687-698.

Bechsgaard, T. K., Lindskow, T., Lading, T., Rasmussen, J., Røpcke, D. M., Tjørnild, M. J., Nygaard, H., Johansen, P. & Nielsen, S. L. (2016). Geometric comparison of aortic root repair procedures, an in vivo experiment. Abstract from 26th Annual Meeting SSRCTS, Geilo, Norway.

Bechsgaard, T. K., Lindskow, T., Lading, T., Lyager, D. M. R., Nygaard, H., Johansen, P. & Nielsen, S. L. (2017). Geometric comparison of repair procedures for the aortic root, an in vivo experiment. Poster session presented at Aarhus University Graduate School of Health, PhD Day 2017, Aarhus, Denmark.

Jeppesen, J., Beniczky, S., Johansen, P. & Fuglsang-Frederiksen, A. (2014). Heart rate variability analysis of seizure leading to sudden unexpected death in a patient with epilepsy indicates increased pre-ictal parasympathetic tonus. Clinical Neurophysiology, 125(S1), S169.

Johansen, P. (2014). How Broad Should Biomedical Engineering Educational Programs Be?. Abstract from BMES 2014 Annual Meeting, San Antonio, United States. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=7

Johansen, P. (2017). How can we secure continuous recruitment of biomedical engineers in cardiovascular research. Abstract from 27th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Jensen, M. Ø. J., Jensen, H., Nielsen, S. L., Smerup, M. H., Johansen, P., Yoganathan, A. P., Nygaard, H. & Hasenkam, J. M. (2007). How to interpret the function of annuloplasty devices.. Abstract from 4th Biennial Meeting of The Society for Heart Valve Disease, New York, United States.

Bontempi, L., Zattoni, M., Ramella, A., Migliavacca, F., Ringgaard, S., Kim, W. Y., Johansen, P. & Colombo, M. (2025). Idealized aortic annuloplasty FSI digital twin of 3D-printed phantoms with 4D-flow MRI comparison. Computers in Biology and Medicine, 192, Article 110398. https://doi.org/10.1016/j.compbiomed.2025.110398

Zattoni, M., Bontempi, L., Ringgaard, S., Luraghi, G., Benhassen, L. L., Johansen, P. & Colombo, M. (2026). In silico modelling of aortic annuloplasty: hemodynamic assessment through in vitro experiments and in vivo MRI. Computer Methods and Programs in Biomedicine, 277, Article 109246. https://doi.org/10.1016/j.cmpb.2026.109246

Bechsgaard, T., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2013). Impact of aortic valve repair on the stress distribution of the aortic root. Abstract from 23rd Scientific Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Andersen, T. S., Johansen, P., Paulsen, P. K., Nygaard, H. & Hasenkam, J. M. (2003). Indication of cavitation in mechanical heart valve patients. J Heart Valve Dis, 12(6), 790-796.

Jeppesen, J., Johansen, P. & Beniczky, S. (2019). In response: Heart rate differential method simple but inefficient method for seizure detection. Epilepsia, 60(12), 2532. https://doi.org/10.1111/epi.16391

Andersen, T. S., Johansen, P., Christensen, B. O., Paulsen, P. K., Nygaard, H. & Hasenkam, J. M. (2006). Intraoperative and Postoperative Evaluation of Cavitation in Mechanical Heart Valve Patients. Annals of Thoracic Surgery, 81, 34-41.

Meskin, M., Starkey, P. A., Kaspersen, A. E., Ringgaard, S., Sand, S. G., Nygaard, J. V., Jensen, J. A., Traberg, M. S. & Johansen, P. (2024). Investigating the importance of left atrial compliance on fluid dynamics in a novel mock circulatory loop. Scientific Reports, 14(1), 1864. Article 1864. https://doi.org/10.1038/s41598-024-52327-6

Rasmussen, J., Skov, S. N., Nielsen, D. B., Jensen, I. L., Tjørnild, M. J., Johansen, P. & Hjortdal, V. E. (2019). In-vitro and in-vivo evaluation of a novel bioprosthetic pulmonary valve for use in congenital heart surgery. Journal of Cardiothoracic Surgery, 14(1), Article 6. https://doi.org/10.1186/s13019-019-0830-1

Johansen, P., Andersen, T. S., Hasenkam, J. M. & Nygaard, H. (2004). In vivo prediction of cavitation near a Medtronic Hall valve. Journal of Heart Valve Disease, 13(4), 651-658.

Frost, M. W., Funder, J. A., Klaaborg, K.-E., Wierup, P., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2009). Leaflet closing motion of stentless heart valves. Abstract from 19th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Salmon, M. K., Hammer, K. E., Johansen, P. & Nielsen-Kudsk, J. E. (2019). Left Atrial Appendage Occlusion: To Tug or Not To Tug?. Poster session presented at EuroPCR in Interventional Cardiovascular Medicine, Paris, France.

Salmon, M. K., Hammer, K. E., Nygaard, J. V., Korsholm, K., Johansen, P. & Nielsen-Kudsk, J. E. (2021). Left atrial appendage occlusion with the Amulet device: to tug or not to tug? Journal of Interventional Cardiac Electrophysiology, 61(1), 199-206. https://doi.org/10.1007/s10840-020-00821-y

Nybo, R. F., Nielsen-Kudsk, J. E. & Johansen, P. (2017). Mapping of catheter tug forces during left atrial appendage occlusion. Poster session presented at 27th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Johansen, P. (2004). Mechanical Heart Valve Cavitation. Expert Review of Medical Devices, 1(1), 95-104.

Johansen, P., Andersen, T. S., Hasenkam, J. M. & Nygaard, H. (2005). Mechanical heart valve cavitation in bileaflet valves. Abstract from First International Conference on Mechanics of Biomaterials & Tissues, Waikoloa, United States.

Johansen, P., Andersen, T. S., Hasenkam, J. M., Nygaard, H. & Paulsen, P. K. (2007). Mechanical heart valve cavitation in patients with bileaflet valves. Poster session presented at 17th Annual Meeting of The Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Displaying results 51 to 100 out of 166

Revised 13.11.2025

Peter Johansen