Small intra-individual variability of the pre-ejection period justifies the use of pulse transit time as approximation of the vascular transit.

Autor: Minke C Kortekaas, Marit H N van Velzen, Frank Grüne, Sjoerd P Niehof, Robert J Stolker, Frank J P M Huygen

Publikováno v: PLoS ONE, Vol 13, Iss 10, p e0204105 (2018)

BACKGROUND:Vascular transit time (VTT) is the propagation time of a pulse wave through an artery; it is a measure for arterial stiffness. Because reliable non-invasive VTT measurements are difficult, as an alternative we measure pulse transit time (P

Externí odkaz: https://doaj.org/article/abe50fb9a48342b8a1d050c8e0edd081

An early diagnostic tool for diabetic peripheral neuropathy in rats.

Autor: Shoista Kambiz, Johan W van Neck, Saniye G Cosgun, Marit H N van Velzen, Joop A M J L Janssen, Naim Avazverdi, Steven E R Hovius, Erik T Walbeehm

Publikováno v: PLoS ONE, Vol 10, Iss 5, p e0126892 (2015)

The skin's rewarming rate of diabetic patients is used as a diagnostic tool for early diagnosis of diabetic neuropathy. At present, the relationship between microvascular changes in the skin and diabetic neuropathy is unclear in streptozotocin (STZ)

Externí odkaz: https://doaj.org/article/793ca37ea7714c63a86d56c743e4d748

Comparison between pulse wave velocities measured using Complior and measured using Biopac

Autor: Robert Jan Stolker, Sjoerd P. Niehof, Marit H. N. van Velzen, Arjo J. Loeve, Egbert G. Mik

Publikováno v: Journal of Clinical Monitoring and Computing, 33(2)
Journal of Clinical Monitoring and Computing, 33(2), 241-247. Springer Netherlands
Journal of Clinical Monitoring and Computing

Arterial stiffness is a reliable prognostic parameter for cardiovascular diseases. The effect of change in arterial stiffness can be measured by the change of the pulse wave velocity (PWV). The Complior system is widely used to measure PWV between th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d10d8354f391d28afbf473c1432ba19b
http://resolver.tudelft.nl/uuid:f2e48670-a5c1-4f26-83fe-6489c1eabd2d

Design and functional testing of a novel blood pulse wave velocity sensor

Autor: Sjoerd P. Niehof, Egbert G. Mik, Marit H. N. van Velzen, Arjo J. Loeve

Publikováno v: Journal of Medical Devices, 12(1)
Journal of Medical Devices, 12(1):011006. The American Society of Mechanical Engineers (ASME)

The multiphotodiode array (MPA) is a novel transmission photoplethysmography (PPG) sensor to measure pulse wave velocity (PWV) in the finger. To validate the MPA, a setup was built to generate a red laser dot traveling over the MPA with known and con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a90cfd31b4c6ffdf8d20653ebc6c1ae7
http://resolver.tudelft.nl/uuid:2e68df6d-168d-431e-9745-3807cfbdaea2

Tissue perfusion and oxygenation to monitor fluid responsiveness in critically ill, septic patients after initial resuscitation: a prospective observational study

Autor: Jasper van Bommel, Marit H. N. van Velzen, Jan Bakker, Alexandre Lima, A. B. Johan Groeneveld, Eva Klijn

Publikováno v: Journal of Clinical Monitoring and Computing
Journal of Clinical Monitoring and Computing, 29(6), 707-712. Springer Netherlands

Fluid therapy after initial resuscitation in critically ill, septic patients may lead to harmful overloading and should therefore be guided by indicators of an increase in stroke volume (SV), i.e. fluid responsiveness. Our objective was to investigat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab777e9438e403fae42da08a79f879f9
https://doi.org/10.1007/s10877-014-9653-8