Publications

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Lading, T., Lindskow, T., Sharghbin, M., Benhassen, L. L., Bechsgaard, T. K., Røpcke, D. M., Nielsen, S. L. & Johansen, P. (2018). Aortic valve repair techniques affect the annulus differently: an In Vitro characterization. The Journal of Heart Valve Disease, 27(4), 251-58.

Lange, L., Væggemose, A., Kidmose, P., Uldbjerg, N. & Johansen, P. (2012). Characterization of the Electrohysterographic Signal Propagation During Uterine Contractions. Poster session presented at 34rd Annual International Conference of the IEEE, San Diego, United States.

Lange, L., Vaeggemose, A., Kidmose, P., Mikkelsen, E., Uldbjerg, N. & Johansen, P. (2014). Velocity and directionality of the electrohysterographic signal propagation. PLoS One, 9(1), 1-6. Article e86775. https://doi.org/10.1371/journal.pone.0086775

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.

Mark, S., Pätzold, N., Krishna, S. K., Taborsky, J., Heide-Jørgensen, S., Hønge, J. L., Zegdi, R. & Johansen, P. (2014). The impact of blocked sinus valsalva on aortic valve closing velocity and orifice area. Abstract from 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, 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

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

Mikkelsen, E., Fuglsang-Frederiksen, A., Uldbjerg, N. & Johansen, P. (2012). A simple method for assessing uterine contraction propagation velocity.

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

Mikkelsen, E., Johansen, P., Fuglsang-Frederiksen, A. & Uldbjerg, N. (2012). Propagation Direction and Velocity of Uterine EMG Signals during Labor. Abstract from XX FIGO World Congress of Gynecology and Obstetrics, Rom, Italy.

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

Ng, H. S., Nygaard, H., Hasenkam, J. M. & Johansen, P. (2005). Visual verification of emboli detection (size and count)using Doppler ultrasound and wavelet transform. Poster session presented at 15^th Annual Meeting of The Scandinavian Society for Research in CardioThoracic Surgery, Geilo, Norway.

Ng, H. S., Nygaard, H., Hasenkam, J. M. & Johansen, P. (2005). Visual Verification of Emboli Detection Using Doppler Ultrasound and Wavelet Transform. Poster session presented at Third Biennial Meeting of The Society for Heart Valve Disease, Vancouver, Canada.

Ng, H. S., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2006). Visual Verification of Emboli Detection Using Doppler Ultrasound and Wavelet Transform. Poster session presented at International Symposium on Cardiovascular & Neurovascular Medicine in conjunction with International Heart Failure Symposium, Hongkong, Hong Kong.

Ng, H. S., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2006). Visual Verification of Emboli Detection Using Doppler Ultrasound and Wavelet Transform. Abstract from International Symposium on Cardiovascular & Neurovascular Medicine in conjunction with International Heart Failure Symposium, Hongkong, Hong Kong.

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., 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.

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.

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., 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.

Nielsen, T., Nielsen, T. V., Johansen, P., Hasenkam, J. M. & Nygaard, H. (2005). Psychoacoustic Quantification of Mechanical Heart Valve Noise. Journal of Heart Valve Disease, 14(1), 89-95.

Nielsen, S. L., Lomholt, M., Johansen, P., Hansen, S. B., Andersen, N. T. & Hasenkam, J. M. (2011). Mitral ring annuloplasty relieves tension of the secondary but not primary chordae tendineae in the anterior mitral leaflet. Journal of Thoracic and Cardiovascular Surgery, 141(3), 732-7. https://doi.org/10.1016/j.jtcvs.2010.05.011

Nielsen-Kudsk, M. H., Ralfs, F. J., Kim, W. Y., Ringgaard, S., Nielsen-Kudsk, J. E. & Johansen, P. (2018). Compromised sinus of valsalva flow and transcatheter aortic valve thrombosis. Poster session presented at 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Noor, M. A., Skov, S. N. & Johansen, P. (2017). Three-dimensional optical strain measurements on mitral valve anterior leaflet. 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.

Noor, M. A., Nygaard, J. V., Hasenkam, J. M. & Johansen, P. (2019). Biomechanical characterization of the regional loss and storage moduli of the thoracic aorta. Abstract from 29th Annual Meeting SSRCTS, Geilo, Norway.

Noor, M. A. (2019). Optisk 3D-måleteknik analyserer tøjning på mitralklappen. Medicoteknik, 6(3), 10-11. https://ipaper.ipapercms.dk/TechMedia/Medicoteknik/2019/3/?page=10

Noor, M. A., Nygaard, J. V., Hasenkam, J. M. & Johansen, P. (2019). Characterization of The Regional Loss and Storage Moduli in Different Segments of The Thoracic Aorta. Abstract from 37th Annual Meeting. Danish Society for Biomedical Engineering., København, Denmark.

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).

Noor, M. A., Benhassen, L. L., Kaspersen, A. E., Weiss, M. G., Hasenkam, J. M. & Johansen, P. (2023). Novel Expansible Aortic Annuloplasty Ring Exhibits Similar Characteristics as the Dacron Ring—an In Vitro Evaluation. Journal of Cardiovascular Translational Research, 16(5), 1144-1152. https://doi.org/10.1007/s12265-023-10393-7

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

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

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.

Nygaard, H., Johansen, P., Riis, C., Hasenkam, J. M. & Paulsen, P. K. (1999). Assessment of perceived mechanical heart valve sound level in patients. Journal of Heart Valve Disease, 8(6), 655-661.

Pedersen, T. A., Nygaard, H., Johansen, P., Körtke, H. & Hasenkam, J. M. (2006). Patient's perception of mechanical heart valve sounds: psychoacoustics and quality of life. Poster session presented at 16th Annual Meeting of The Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Pedersen, T. A., Nygaard, H., Johansen, P., Körtke, H. & Hasenkam, J. M. (2006). Patient's perception of mechanical heart valve sounds: psychoacoustics and quality of life. Abstract from 16th Annual Meeting of The Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Pedersen, T. A., Johansen, P., Hasenkam, J. M., Körfer, R., Körtke, H. & Nygaard, H. (2007). Are sounds from mechanical heart valves equal for different valve types?. Poster session presented at Fourth Biennial Meeting of The Society for Heart Valve Disease, New York, United States.

Pedersen, T. A., Johansen, P., Hasenkam, J. M., Körfer, R., Körtke, H. & Nygaard, H. (2007). Are sounds from mechanical heart valves equal for different valve types?. Abstract from 4th Biennial Meeting of The Society for Heart Valve Disease, New York, United States.

Pedersen, T. A. L., Johansen, P., Hasenkam, J. M., Koerfer, R., Koertke, H. & Nygaard, H. (2008). Are sounds from mechanical heart valves equal for different valve types? Journal of Heart Valve Disease, 17(5), 579-82.

Pirk, J. L., Krishna, K., Taborsky, J., Nielsen, M. H., Heide-Jørgensen, S., Hønge, J. L., Zegdi, R. & Johansen, P. (2013). The effect of bulging sinuses of valsalva on valve dynamics - an in vitro study of TAVI valves. Abstract from 23rd Scientific Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Ralfs, F. J., Nielsen-Kudsk, M. H., Nielsen-Kudsk, J. E. & Johansen, P. (2018). The functional effect of left atrial appendage occlusion. Poster session presented at 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Rasmussen, J., Skov, S. N., Tjørnild, M. J., Nielsen, D. B., Jensen, I. L., Johansen, P. & Hjortdal, V. E. (2016). A novel cormatrix pulmonary valve - initial in-vivo experience. Abstract from 26th Annual Meeting SSRCTS, Geilo, Norway.

Rasmussen, P. D., Engholt, H., Benhassen, L. L., Tang, M., Andersen, H. R., Nielsen-Kudsk, J. E. & Johansen, P. (2017). The effects of the aortic root on the fracturing pressure of bioprosthetic heart valves. Poster session presented at 27th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

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

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.

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. (2020). Correction to: Left atrial appendage occlusion with the Amulet device: to tug or not to tug? Journal of Interventional Cardiac Electrophysiology. https://doi.org/10.1007/s10840-020-00839-2

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

Salvig, C. D., Benhassen, L. L., Nygaard, J. V., Johansen, P., Skov, S. N. & Hasenkam, J. M. (2018). Biomechanical in vitro assessment of the porcine aortic root. Poster session presented at 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.

Displaying results 101 to 150 out of 166

Revised 13.11.2025

Peter Johansen