Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ole-Johannes Grymyr"'
Autor:
Magnus Reinsfelt Krogh, Erik Fosse, Espen W. Remme, Ole-Johannes Grymyr, Ole Jakob Elle, Per Steinar Halvorsen, Jacob Bergsland
Publikováno v:
IEEE transactions on bio-medical engineering. 68(7)
Objective: A miniaturized accelerometer can be incorporated in temporary pacemaker leads which are routinely attached to the epicardium during cardiac surgery and provide continuous monitoring of cardiac motion during and following surgery. We tested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29fe4fa765c9ee5fa097c2d02442a7b8
https://pubmed.ncbi.nlm.nih.gov/32866091
https://pubmed.ncbi.nlm.nih.gov/32866091
Autor:
Per Steinar Halvorsen, Lars Hoff, Ole Jakob Elle, Espen W. Remme, Giang M. Nghiem, Magnus Reinsfelt Krogh, Ole-Johannes Grymyr
Publikováno v:
Annals of Biomedical Engineering. 45:1292-1304
A miniaturized accelerometer fixed to the heart can be used for monitoring of cardiac function. However, an accelerometer cannot differentiate between acceleration caused by motion and acceleration due to gravity. The accuracy of motion measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce52b71f47e1221b393544f0cee632fb
https://doi.org/10.1007/s10439-017-1798-4
https://doi.org/10.1007/s10439-017-1798-4
Autor:
Manuel Villegas-Martinez, Ali Wajdan, Ole Jakob Elle, Magnus Reinsfelt Krogh, Per Steinar Halvorsen, Ole-Johannes Grymyr, Espen W. Remme
Publikováno v:
2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
EMBC
EMBC
A miniaturized accelerometer attached to the heart has been used for monitoring functional parameters such as early systolic velocity and displacement. Currently, processing of the accelerometer signal for derival of these functional parameters depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9db1c277e7843dd0169ed5433ef79bb8
Autor:
Anh-Tuan Thai Nguyen, Nils Hoivik, Knut E. Aasmundtveit, Lars Hoff, Per Steinar Halvorsen, Kristin Imenes, Ole-Johannes Grymyr, Fjodors Tjulkins
Publikováno v:
Journal of Microelectronics and Electronic Packaging. 12:171-180
Early detection of cardiac complications after heart surgery is a crucial demand in clinical surveillance facilities. The use of accelerometer devices fixated to the heart has been demonstrated as a promising method for the detection of myocardial is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::847cbd9a2c9c223ceb2b4ee1edabe439
https://doi.org/10.4071/imaps.476
https://doi.org/10.4071/imaps.476
Autor:
Sverre Brovoll, Jacob Bergsland, Per Steinar Halvorsen, Tor A. Ramstad, Ole-Johannes Grymyr, Ilangko Balasingham, Pal Anders Floor, Øyvind Aardal, Dirk Plettemeier, Svein-Erik Hamran, Raul Chavez-Santiago, Rafael Palomar
Publikováno v:
IEEE Journal of Biomedical and Health Informatics
Ultra wideband (UWB) radio technology for wireless implants has gained significant attention. UWB enables the fabrication of faster and smaller transceivers with ultra low power consumption, which may be integrated into more sophisticated implantable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49aa20ffe7b25fb6feb0a302d4c7d3c
https://doi.org/10.1109/jbhi.2015.2417805
https://doi.org/10.1109/jbhi.2015.2417805
Autor:
Espen W. Remme, Andreas Espinoza, Helge Skulstad, Per Steinar Halvorsen, Ole-Johannes Grymyr, Ole Jakob Elle, Erik Fosse
Publikováno v:
Interactive CardioVascular and Thoracic Surgery. 20:329-337
OBJECTIVES: Miniaturized accelerometers attached to the epicardium have been shown to provide useful clinical information. However, attachment of such a sensor has been cumbersome due to requirement of aligning the three sensor axes with the cardiac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f67fab828705d06bafd58ae64ecfc66
https://doi.org/10.1093/icvts/ivu404
https://doi.org/10.1093/icvts/ivu404
Autor:
Erik Andreassen, Lars Hoff, Ole-Johannes Grymyr, Kristin Imenes, Anh-Tuan Thai Nguyen, Per Steinar Halvorsen, Fjodors Tjulkins
Publikováno v:
Journal of Medical Devices. 10
This paper reports recent results from an ongoing effort to develop an implantable accelerometer-based heart-monitoring device for ischemia monitoring. The latest device prototype utilizes a new and more compact accelerometer (1.2 × 1.5 × 0.8 mm3),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99bb35fbe5e5d0aee818e6279d65e0d
https://doi.org/10.1115/1.4034574
https://doi.org/10.1115/1.4034574
Autor:
Kristin Imenes, Lars Hoff, Jonas Tysso, Knut E. Aasmundtveit, Ole-Johannes Grymyr, Anh-Tuan T. Nguyen
Publikováno v:
2016 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP).
Early studies on miniaturization of a heart monitoring implantable accelerometer device have reported some notable challenges in design related to improvement of implantation stability, cable strength and selection of suitable connector for signal co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01b0207d140f2f2b39617c80b41f711b
https://doi.org/10.1109/dtip.2016.7514849
https://doi.org/10.1109/dtip.2016.7514849
Autor:
Kristin Imenes, Per Steinar Halvorsen, Erik Fosse, Ole-Johannes Grymyr, Helge Skulstad, Fjodors Tjulkins, Anh-Tuan Thai Nguyen, Espen W. Remme, Andreas Espinoza
Publikováno v:
Interactive cardiovascular and thoracic surgery. 21(5)
OBJECTIVES Cardiac wall motions reflect systolic and diastolic function. We have previously demonstrated the ability of a miniaturized three-axis (3D) accelerometer to monitor left ventricular function in experimental models and in patients. The main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a97718ec088a5424394cb7fb290ea62d
https://pubmed.ncbi.nlm.nih.gov/26254463
https://pubmed.ncbi.nlm.nih.gov/26254463
Autor:
Knut E. Aasmundtveit, Per Steinar Halvorsen, Lars Hoff, Nils Hoivik, Erik Andreassen, Fjodors Tjulkins, Kristin Imenes, Anh-Tuan Thai Nguyen, Ole-Johannes Grymyr
Publikováno v:
Journal of medical engineeringtechnology. 39(1)
An accelerometer-based heart monitoring system has been developed for real-time evaluation of heart wall movement. In this paper, assembly and fabrication of an improved device is presented along with system characterization and test data from an ani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55167f4cd2106b362fa6946fc13b381
https://pubmed.ncbi.nlm.nih.gov/25429874
https://pubmed.ncbi.nlm.nih.gov/25429874