Jan Peuscher - Academia.edu (original) (raw)

Papers by Jan Peuscher

2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013

The electrohysterogram (EHG) is a promising means of monitoring pregnancy and of detecting a risk... more The electrohysterogram (EHG) is a promising means of monitoring pregnancy and of detecting a risk of preterm labor. To improve our understanding of the EHG as well as its relationship with the physiologic phenomena involved in uterine contractility, we plan to model these phenomena in terms of generation and propagation of uterine electrical activity. This activity can be realistically modeled by representing the principal ionic dynamics at the cell level, the propagation of electrical activity at the tissue level and then the way it is reflected on the skin surface through the intervening tissue. We present in this paper the different steps leading to the development and validation of a biophysics based multiscale model of the EHG, going from the cell to the electrical signal measured on the abdomen.

Topics in Biomedical Engineering, 2006

Lecture Notes in Computer Science, 2007

A Body Area Network (BAN) is a body worn system which provides the user with a set of mobile serv... more A Body Area Network (BAN) is a body worn system which provides the user with a set of mobile services. A BAN incorporates a set of devices (eg. mp3 player, video camera, speakers, microphone, head-up display, positioning device, sensors, actuators). A BAN service platform for mobile healthcare and several health BANs targetting different clinical applications have been developed at the University of Twente. Each specialization of the BAN is equipped with a certain set of devices and associated application components, as appropriate to the clinical application. Different kinds of clinical data may be captured, transmitted and displayed, including text, numeric values, images and multiple biosignal streams. Timely processing and transmission of such multimedia clinical data in a distributed mobile environment requires smart strategies. Here we present one approach to designing smart distributed applications to deal with multimedia BAN data; namely the context awareness approach developed in the FREEBAND AWARENESS project.

Topics in Biomedical Engineering, 2006

Topics in Biomedical Engineering, 2006

fact that a disaster response process has to be viewed as a complex and multifaceted distributed ... more fact that a disaster response process has to be viewed as a complex and multifaceted distributed system involving many teams and requiring sophisticated coordination and communication facilities.

IEEE Transactions on Applied Superconductivity - IEEE TRANS APPL SUPERCONDUCT, 2006

Journal of Neural Engineering, 2010

Current brain-computer interfaces that make use of EEG acquisition techniques require unpleasant ... more Current brain-computer interfaces that make use of EEG acquisition techniques require unpleasant electrode gel causing skin abrasion during standard preparation procedure. Electrodes that require tap water instead of electrolytic electrode gel would make both daily setup and clean up much faster, easier, and comfortable. This paper presents the results over 10 subjects that controlled an SSVEP-based BCI speller system using two EEG sensor modalities: water-based and gel-based surface electrodes. Subjects performed in copy spelling mode using conventional gel-based electrodes and water-based electrodes with a mean information transfer rate (ITR) of 29.68±14.088 bit/min and of 26.56±9.224 bit/min, respectively. A paired t-test failed to reveal a significant difference in the information transfer rates of using gel-or water-based electrodes for EEG acquisition. This promising result confirms the operational readiness of water-based electrodes for BCI applications.

Proceedings of the 7th International Conference on Telecommunications, 2003. ConTEL 2003., 2003

A challenge of current innovation in healthcare processes is to improve the time to treatment. Th... more A challenge of current innovation in healthcare processes is to improve the time to treatment. This paper addresses the benefits of telematic services and mobile & wireless devices such as vital sign sensors and head mounted cameras for healthcare processes. It explores the telematic requirements for a distributed healthcare environment of Body Area Networks of the mobile devices which are connected by wireless (public) networks (e.g. GPRS and UMTS) to healthcare centres. Our main contribution is the development of Enterprise models, which are expressed in terms of the Unified Modelling Language, for the purpose of identification and justification of the telematic system requirements. The developed Enterprise models separate organizational modelling concerns such as the separation of medical roles from the agents acting in these roles. This separation enables roles to be dispatched virtually to a point of care without transporting along with all the agents, but it requires support of a telematic system to bridge the distance gap. We validate the proposed models against a trauma team scenario and consequently obtain the telematic system requirements which enable improved time to treatment for emergency services.

2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013

The electrohysterogram (EHG) is a promising means of monitoring pregnancy and of detecting a risk... more The electrohysterogram (EHG) is a promising means of monitoring pregnancy and of detecting a risk of preterm labor. To improve our understanding of the EHG as well as its relationship with the physiologic phenomena involved in uterine contractility, we plan to model these phenomena in terms of generation and propagation of uterine electrical activity. This activity can be realistically modeled by representing the principal ionic dynamics at the cell level, the propagation of electrical activity at the tissue level and then the way it is reflected on the skin surface through the intervening tissue. We present in this paper the different steps leading to the development and validation of a biophysics based multiscale model of the EHG, going from the cell to the electrical signal measured on the abdomen.

Topics in Biomedical Engineering, 2006

Lecture Notes in Computer Science, 2007

A Body Area Network (BAN) is a body worn system which provides the user with a set of mobile serv... more A Body Area Network (BAN) is a body worn system which provides the user with a set of mobile services. A BAN incorporates a set of devices (eg. mp3 player, video camera, speakers, microphone, head-up display, positioning device, sensors, actuators). A BAN service platform for mobile healthcare and several health BANs targetting different clinical applications have been developed at the University of Twente. Each specialization of the BAN is equipped with a certain set of devices and associated application components, as appropriate to the clinical application. Different kinds of clinical data may be captured, transmitted and displayed, including text, numeric values, images and multiple biosignal streams. Timely processing and transmission of such multimedia clinical data in a distributed mobile environment requires smart strategies. Here we present one approach to designing smart distributed applications to deal with multimedia BAN data; namely the context awareness approach developed in the FREEBAND AWARENESS project.

Topics in Biomedical Engineering, 2006

Topics in Biomedical Engineering, 2006

fact that a disaster response process has to be viewed as a complex and multifaceted distributed ... more fact that a disaster response process has to be viewed as a complex and multifaceted distributed system involving many teams and requiring sophisticated coordination and communication facilities.

IEEE Transactions on Applied Superconductivity - IEEE TRANS APPL SUPERCONDUCT, 2006

Journal of Neural Engineering, 2010

Current brain-computer interfaces that make use of EEG acquisition techniques require unpleasant ... more Current brain-computer interfaces that make use of EEG acquisition techniques require unpleasant electrode gel causing skin abrasion during standard preparation procedure. Electrodes that require tap water instead of electrolytic electrode gel would make both daily setup and clean up much faster, easier, and comfortable. This paper presents the results over 10 subjects that controlled an SSVEP-based BCI speller system using two EEG sensor modalities: water-based and gel-based surface electrodes. Subjects performed in copy spelling mode using conventional gel-based electrodes and water-based electrodes with a mean information transfer rate (ITR) of 29.68±14.088 bit/min and of 26.56±9.224 bit/min, respectively. A paired t-test failed to reveal a significant difference in the information transfer rates of using gel-or water-based electrodes for EEG acquisition. This promising result confirms the operational readiness of water-based electrodes for BCI applications.

Proceedings of the 7th International Conference on Telecommunications, 2003. ConTEL 2003., 2003

A challenge of current innovation in healthcare processes is to improve the time to treatment. Th... more A challenge of current innovation in healthcare processes is to improve the time to treatment. This paper addresses the benefits of telematic services and mobile & wireless devices such as vital sign sensors and head mounted cameras for healthcare processes. It explores the telematic requirements for a distributed healthcare environment of Body Area Networks of the mobile devices which are connected by wireless (public) networks (e.g. GPRS and UMTS) to healthcare centres. Our main contribution is the development of Enterprise models, which are expressed in terms of the Unified Modelling Language, for the purpose of identification and justification of the telematic system requirements. The developed Enterprise models separate organizational modelling concerns such as the separation of medical roles from the agents acting in these roles. This separation enables roles to be dispatched virtually to a point of care without transporting along with all the agents, but it requires support of a telematic system to bridge the distance gap. We validate the proposed models against a trauma team scenario and consequently obtain the telematic system requirements which enable improved time to treatment for emergency services.