Jensen, M. Ø. J., Nielsen, S. L., Smerup, M. H., Johansen, P., Yoganathan, A. P.
, Hasenkam, J. M. & Nygaard, H. (2006).
3D Geometry and Stress Distribution in Mitral Valve Annuloplasty Rings. Poster session presented at 16th Annual Meeting of The Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Lading, T., Lindskow, T.
, Bechsgaard, T. K., Lyager, D. M. R., Johansen, P. & Nielsen, S. L. (2017).
Adding annuloplasty ring to remodeling aortic valve sparing repair is equal to reimplantation technique - insights from in vitro stress-strain characterization. Abstract from HVS Scientific Meeting, Monaco, Monaco.
Carlson Hanse, L., Tjørnild, M. J., Karunanithi, Z., Jedrzejczyk, J. H., Islamagič, L.
, Hummelshøj, N. E., Enevoldsen, M., Johansen, P., Lauridsen, M. H. & Hjortdal, V. E. (2023).
A handsewn pericardial valved pulmonary conduit: pulsatile flow loop in vitro and acute porcine in vivo evaluation.
European Journal of Cardio-Thoracic Surgery,
63(4), Article ezad143.
https://doi.org/10.1093/ejcts/ezad143
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/10.1186/1476-7120-8-40Johansen, P., Fontaine, A. A., Deutsch, S., Manning, K. B.
, Nygaard, H. & Tarbell, J. M. (2003).
A new method for evaluation of cavitation near mechanical heart valves.
Journal of Biomechanical Engineering,
125(5), 663-670.
Johansen, P., Riis, C.
, Hasenkam, J. M., Paulsen, P. K. & Nygaard, H. (2000).
A new method for quantitative evaluation of perceived sounds from mechanical heart valve prostheses.
Proc Inst Medch Eng,
214(1), 121-128.
Carlson Hanse, L., Tjørnild, M. J., Johansen, P., Lugones, I.
& Hjortdal, V. E. (2019).
A new pulmonary valve repair technique for congenital heart surgery: in vitro evaluation. Abstract from 29th Annual Meeting SSRCTS, 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.
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 from DMTS 2014, Brædstrup, Denmark.
Heide-Jørgensen, S., Kumaran Krishna, S., Taborsky, J.
, Bechsgaard, T. K., Zegdi, R.
& Johansen, P. (2016).
A Novel Method for Optical High Spatiotemporal Strain Analysis for Transcatheter Aortic Valves In Vitro.
Journal of Biomechanical Engineering,
138(3), Article 034504.
https://doi.org/10.1115/1.4032501
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 from 24th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
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.
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.
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.
Johansen, P., Søgaard, H., Morgenstjerne, O. R.
, Hasenkam, J. M. & Nygaard, H. (2005).
Assessment of Mechanical Heart Valve Integrity in patients using acoustic techniques requires ultrahigh frequency bandwidth high fidelity microphones. Poster session presented at The 3rd European Medical & Biological Engineering Conference, Prag, Czech Republic.
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.
Jeppesen, J., Beniczky, S., Johansen, P., Christensen, J. & Fuglsang-Frederiksen, A. (2018).
Automated R-Peak Detection Algorithm for Patients with Epilepsy Using Portable ECG.
Clinical Neurophysiology,
129(Supplement 1), e134-135. Article F117.
https://doi.org/10.1016/j.clinph.2018.04.340
Bechsgaard, T. K., Hønge, J. L., Nygaard, H., Nielsen, S. L. & Johansen, P. (2017).
Biomechanical assessment of the aortic root using novel force transducers.
Journal of Biomechanics,
61, 58-64.
https://doi.org/10.1016/j.jbiomech.2017.07.003
Bechsgaard, T., Lindskow, T., Lading, T., Røpcke, D. M., Nygaard, H., Johansen, P., Nielsen, S. L. & Hasenkam, J. M. (2019).
Biomechanical characterization and comparison of different aortic root surgical techniques.
Interactive Cardiovascular and Thoracic Surgery,
28(1), 112-119.
https://doi.org/10.1093/icvts/ivy187
Bechsgaard, T., Lindskow, T.
, Lading, T., Hasenkam, J. M., Nygaard, H., Johansen, P. & L Nielsen, S. (2018).
Biomechanical characterization of the native porcine aortic root.
Journal of Biomechanics,
74, 156-162.
https://doi.org/10.1016/j.jbiomech.2018.04.037
Lading, T., Lindskow, T.
, Bechsgaard, T. K., Røpcke, D. M., Nygaard, H., Hasenkam, J. M., Johansen, P. & Nielsen, S. L. (2016).
Biomechanical description of the aortic root repair techniques - with supporting external annuloplasty. Abstract from 26th Annual Meeting SSRCTS, Geilo, Norway.
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.
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 from BMES 2015 Annual Meeting, Tampa, Florida, United States.
http://submissions.mirasmart.com/BMESArchive/Browse.aspx?colID=8
Johansen, P., Travis, B. R., Paulsen, P. K., Nygaard, H. & Hasenkam, J. M. (2003).
Cavitaion caused by mechanical heart valve prosthesis: A review.
Acta Pathologica Microbiologica et Immunologica Scandinavica, (109), 108-112.
Johansen, P., Andersen, T. S.
, Hasenkam, J. M., Nygaard, H. & Paulsen, P. K. (2015).
Cavitation in patients with bileaflet mechanical heart valves. Poster session presented at The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Travis, B. R., Nyboe, C., Christensen, T. D., Smerup, M. H., Johansen, P., Nygaard, H. & Hasenkam, J. M. (2007).
Changes in Turbulence With Rotation of the Omnicarbon Prosthesis.
ASAIO,
53, 410-414.
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.
Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2016).
Comparing maximum autonomic activity of psychogenic non-epileptic seizures and epileptic seizures using heart rate variability.
Seizure - European Journal of Epilepsy,
37, 13-19.
https://doi.org/10.1016/j.seizure.2016.02.005
Andersen, S., Laursen, P. H.
, Wood, G. J., Lyhne, M. D., Madsen, T. L., Hansen, E. S. S., Johansen, P., Kim, W. Y. & Andersen, M. J. (2024).
Comparison of admittance and cardiac magnetic resonance generated pressure-volume loops in a porcine model.
Physiological Measurement,
45(5), Article 055014.
https://doi.org/10.1088/1361-6579/ad4a03
Sharghbin, M.
, Benhassen, L. L., Bechsgaard, T. K., Lyager, D. M. R., Johansen, P. & Nielsen, S. L. (2017).
Comparison of aortic valve repair techniques with different subvalvular annuloplasties - an in vitro evaluation. Poster session presented at Aarhus University Graduate School of Health, PhD Day 2017, Aarhus, Denmark.
Benhassen, L. L., Hedensted, J. H., Sharghbin, M., Bechsgaard, T., Nielsen, S. L., Hasenkam, J. M. & Johansen, P. (2023).
Comparison of aortic valve repair techniques with single- and double-ring annuloplasties.
European Journal of Cardio-Thoracic Surgery,
63(5), Article ezad164.
https://doi.org/10.1093/ejcts/ezad164
Sharghbin, M., Benhassen, L. L., Lading, T., Bechsgaard, T. K., Skov, S. N., Lyager, D. M. R., Nielsen, S. L., Johansen, P. & Hasenkam, J. M. (2018).
Comparison of Dacron ring and suture annuloplasty for aortic root repair - an in vitro evaluation. Abstract from 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
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 presented at The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Sharghbin, M., Benhassen, L. L., Lading, T., Bechsgaard, T., Nielsen Skov, S., Røpcke, D. M., Lyager Nielsen, S., Hasenkam, J. M. & Johansen, P. (2018).
Comparison of the Dacron ring and suture annuloplasty for aortic root repair: an in vitro evaluation.
Interactive Cardiovascular and Thoracic Surgery,
27(6), 819-827.
https://doi.org/10.1093/icvts/ivy175
Hedensted, J. H., Benhassen, L. L., Lyager, D. M. R., Bechsgaard, T. K., Johansen, P. & Nielsen, S. L. (2017).
Comparison of valve-sparing aortic root repair techniques with single and double annuloplasty rings. Poster session presented at 27th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Hedensted, J. H., Benhassen, L. L., Bechsgaard, T. K., Johansen, P., Nielsen, S. L. & Hasenkam, J. M. (2018).
Comparison of valve-sparing aortic root repair techniques with single and double annuloplasty rings. Abstract from 28th Annual Meeting, Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Holck, E. N., Andreasen, L. N., Hansen, E. K., Thomsen, J. S., Brüel, A., Johansen, P., Christiansen, E. H. & Jakobsen, L. (2025).
Complex Treatment of a Coronary Bifurcation Perforation With a Dual-Covered Stent Strategy.
JACC: Case Reports,
30(7), Article 103382.
https://doi.org/10.1016/j.jaccas.2025.103382
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.
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
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. In
BMES 2014 Annual Meeting: Bioengineering innovations to catalyze affordable health care Article 568 Biomedical Engineering Society.
http://bmes.org/files/BMES%202014%20Program_FINAL.pdf
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 from The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
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 from The 25th Annual Meeting of the Scandinavian Society for Research in Cardiothoracic Surgery, Geilo, Norway.
Jeppesen, J., Beniczky, S., Johansen, P., Sidenius, P. C. & Fuglsang-Frederiksen, A. (2016).
Detecting epileptic seizures with ECG using geometric analyses of heart rate variability. Abstract from 26th Annual Scientific Meeting of the SSRCTS, Geilo, Norway.
