Publications

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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 præsenteret på 5th Biennial Meeting of the Society for Heart Valve Disease, Berlin, Tyskland.

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

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 fra 19th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Stigö, A., Johansen, P., Jensen, M. Ø., Sivesgaard, K., Nygaard, H. & Sloth, E. (2010). An automated in vitro model for the evaluation of ultrasound modalities measuring myocardial deformation. Cardiovascular Ultrasound, 8, 40. https://doi.org/10.1186/1476-7120-8-40

Johansen, P. & Funder, J. A. (2010). Test af biologiske hjerteklapper – et tæt samarbejde imellem læger og ingeniører. Medicinsk Teknologi & Informatik, Maj 2010, 16-19. http://www.medicinskteknologi.dk/mag_list.php/220

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

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

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

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

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. (2012). Propagation Direction and Velocity of Uterine EMG Signals during Labor. Abstract fra XX FIGO World Congress of Gynecology and Obstetrics, Rom, Italien.

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

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

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 fra 23rd Scientific Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2013). New modified Heart Rate Variability analysis as detector of epilectic seizures. Poster session præsenteret på Danske Medicotekniske Landsmøde, Brædstrup, Danmark.

Jeppesen, J., Beniczky, S., Sidenius, P. C., Johansen, P. & Fuglsang-Frederiksen, A. (2013). New modified Heart Rate Variability analysis as detector of epilectic seizures. Poster session præsenteret på Horizons in Clinical Neurophysiology, Oxford, Storbritannien.

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 fra 23rd Scientific Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Heide-Jørgensen, S., Nielsen, M. H., Krishna, K., Pirk, J. L., Taborsky, J., Hønge, J. L., Zegdi, R. & Johansen, P. (2013). The impact of non-circular TAVI deployment on valve performance. Abstract fra 23rd Scientific Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge. http://www.ssrcts.org/assets/SSRCTS-2013-.pdf

Würtz, K. & Johansen, P. (2014). A new approach for determination of cavitation at mechanical heart valves. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Heide-Jørgensen, S., Krishna, K., Taborsky, J., Bechsgaard, T. K., Hønge, J. L., Johansen, P. & Zegdi, R. (2014). A new method for high resolution non-contact heart valve deformation analysis. I 7th World Congress of Biomechanics (WCB 2014): Abstracts Artikel M55 http://wcb2014.com/wp/wp-content/uploads/2012/05/Posters-Monday-MG-Update.pdf

Heide-Jørgensen, S., Krishna, S. K., Taborsky, J., Bechsgaard, T., Hønge, J. L., Zegdi, R. & Johansen, P. (2014). A Novel Method for High Resolution Non-Contact Tissue Strain and Deformation Analysis. Abstract fra DMTS 2014, Brædstrup, Danmark.

Bechsgaard, T. K., Laugesen, S., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2014). Aortic annulus and commissural force transducers development and calibration. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Johansen, T., Johansen, P. & Dahl, R. (2014). Blood gas tensions in adult asthma: a systematic review and meta-regression analysis. Journal of Asthma, 51(9), 974-981. https://doi.org/10.3109/02770903.2014.936066

Bechsgaard, T. K., Laugesen, S., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2014). Design and calibration of transducers for aortic root force measurement. I BMES 2014 Annual Meeting: Bioengineering innovations to catalyze affordable health care Artikel 568 Biomedical Engineering Society. http://bmes.org/files/BMES%202014%20Program_FINAL.pdf

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. I 7th World Congress of Biomechanics (WCB 2014): Abstracts Artikel T47 http://wcb2014.com/

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 fra BMES 2014 Annual Meeting, San Antonio, USA. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=7

Lauritsen, S. M., Bertelsen, L. B., Johansen, P., Nygaard, J. V. & Stødkilde-Jørgensen, H. (2014). In vitro dynamic nuclear polarization study for tracking real-time metabolism in endothelial progenitor cells. Abstract fra DMTS 2014, dansk medikoteknisk landsmøde, Brædstrup, Danmark.

Johansen, P., Andersen, T. S., Hasenkam, J. M., Nygaard, H. & Paulsen, P. K. (2014). Mechanical heart valve cavitation in patients with bileaflet valves. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, 5655 - 5658 . https://doi.org/10.1109/EMBC.2014.6944910

Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2014). New modified heart rate variability analyses as detector of epileptic seizures. Clinical Neurophysiology, 125(S1), S255.

Bechsgaard, T. K., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2014). New transducers to measure forces in the aortic annulus and at the valve commissures. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Heide-Jørgensen, S., Taborsky, J., Krishna, S. K., Zegdi, R. & Johansen, P. (2014). Non-circular TAVI deployment's impact on maximum orifice area. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Krishna, S. K., Christensen, J., Taborsky, J., Heide-Jørgensen, S., Bechsgaard, T. K., Hønge, J. L., Zegdi, R. & Johansen, P. (2014). Non-contact strain measurements with high spatial and temporal resolution on aortic valves. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Bechsgaard, T. K., Hønge, J. L., Laugesen, S., Nygaard, H., Nielsen, S. L. & Johansen, P. (2014). Platform to evaluate aortic root repair techniques based on new implantable force transducers. I Valves in the Heart of Big Apple VIII: Evaluation & Management of Valvular Heart Disease 2014 http://heartvalveconference.com/2014/V2.cgi

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 fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Taborsky, J., Heide-Jørgensen, S., Krishna, S. K., Zegdi, R. & Johansen, P. (2014). The impact of deformed TAVI on valve closing velocity. Abstract fra 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2014). Using Lorenz plot and Cardiac Sympathetic Index of heart rate variability for detecting seizures for patients with epilepsy. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, 4563-4566. https://doi.org/10.1109/EMBC.2014.6944639

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. Artikel e86775. https://doi.org/10.1371/journal.pone.0086775

Heide-Jørgensen, S., Taborsky, J., Krishna, S. K., Bechsgaard, T. K., Hønge, J. L., Zegdi, R. & Johansen, P. (2015). Bioprosthetic Heart Valve Leaflet 3D Strain Mapping using Digital Image Correlation. Abstract fra BMES 2015 Annual Meeting, Tampa, Florida, USA. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=8

Johansen, P., Andersen, T. S., Hasenkam, J. M., Nygaard, H. & Paulsen, P. K. (2015). Cavitation in patients with bileaflet mechanical heart valves. Poster session præsenteret på The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Lading, T., Røpcke, D. M., Lindskow, T., Bechsgaard, T. K., Johansen, P., Nygaard, H., Hasenkam, J. M. & Nielsen, S. L. (2015). Comparison of the aortic root remodeling techniques - with and without a supporting annular ring. An vitro evaluation.. Poster session præsenteret på The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Bechsgaard, T. K., Laugesen, S., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2015). Design, calibration and preliminary results of force transducers for aortic root repairs. Abstract fra The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Bruus, D., Lindhardt, I., Weng, P. B. S., Galsgaard, R. & Johansen, P. (2015). Design of custom-made TAVI valve for low-cost valve concept testing. Abstract fra The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

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

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

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 fra BMES 2015 Annual Meeting, Tampa, Florida, USA. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=8

Heide-Jørgensen, S., Krishna, S. K., Taborsky, J., Bechsgaard, T. K., Hønge, J. L., Zegdi, R. & Johansen, P. (2015). Novel assessment of strain distribution with high spatiotemporal resolution on aortic valve leaflets. Abstract fra The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

Weng, P. B. S. & Johansen, P. (2015). Optimization of Mechanical Heart Valve Cavitation Detection. Abstract fra BMES 2015 Annual Meeting, Tampa, Florida, USA. http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=8

Krishna, K., Galsgaard, R., Heide-Jørgensen, S., Bechsgaard, T. K., Zegdi, R., Bräuner, L. E., Nygaard, J. V. & Johansen, P. (2015). The effect of TAVI oversizing on valve tissue stresses. Poster session præsenteret på The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norge.

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 fra 26th Annual Meeting SSRCTS, Geilo, Norge.

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Revideret 10.08.2023

Peter Johansen