Frode Strisland

• Berntsen, Gro Karine Rosvold; Strisland, Frode; Malm-Nicolaisen, Kristian; Smaradottir, Berglind; Fensli, Rune Werner & Røhne, Mette (2019). The Evidence Base for an Ideal Care Pathway for Frail Multimorbid Elderly: Combined Scoping and Systematic Intervention Review. Journal of Medical Internet Research.  ISSN 1438-8871.  21(4) . doi: 10.2196/12517 Full text in Research Archive.
• Halvorsrud, Ragnhild; Røhne, Mette; Celius, Elisabeth Gulowsen; Moen, Stine Marit & Strisland, Frode (2019). Application of Patient Journey Methodology to Explore Needs for Digital Support A Multiple Sclerosis Case Study, In Conceição Granja & Terje Solvoll (ed.),  Proceedings of the 17th Scandinavian Conference on Health Informatics 2019.  Linköping University Electronic Press.  ISBN 978-91-7929-957-6.  kapittel.  s 148 - 153 Show summary

  Multiple sclerosis (MS) is a chronic disease with a highly variable course, and patients face a large number of health professionals during treatment and follow-up. We introduce a methodology for detailed analysis and visualisation of patient journeys. The purpose was to gain insight into MS-patients' needs, experiences, and desires. A case study with three patients over a period of 4-6 weeks revealed how they interact with health professionals in managing their disease. We have identified several areas where digital tools may improve the patients' quality of life, and support health professionals in their follow-up and treatment of MS.

• Seeberg, Trine Margrethe; Orr, James; Austad, Hanne Opsahl; Røed, Morten Hamremoen; Dalgard, Steffen Harald; Houghton, David; Jones, David A. & Strisland, Frode (2017). A Novel Method for Continuous, Noninvasive, Cuff-Less Measurement of Blood Pressure: Evaluation in Patients With Nonalcoholic Fatty Liver Disease. IEEE Transactions on Biomedical Engineering.  ISSN 0018-9294.  64(7), s 1469- 1478 . doi: 10.1109/TBME.2016.2606538 Full text in Research Archive. Show summary

  Objective: One promising approach for a continuous, noninvasive, cuff-less ambulatory blood pressure (BP) monitor is to measure the pulse wave velocity or the inversely proportional pulse transit time (PTT), based on electrical and optical physiological measurements in the chest area. A device termed IsenseU-BP+ has been developed for measuring continuous BP, as well as other physiological data. The objective of this paper is to present results from the first clinical evaluation with a wide range of patients. The study was set up to verify whether IsenseU-BP+ can be used to measure raw signals with sufficient quality to derive PTT. Methods: The test protocol, run 23 times on 18 different patients with nonalcoholic fatty liver disease, includes both supine measurement at rest as well as measurements during indoor cycling. Changes in PTT were compared with the BP changes measured using validated reference sensors. Results: IsenseU-BP+ measured signals with good quality during rest on 17 of 18 patients despite the high diversity in age, body shape, and body mass index. Evaluation during cycling was difficult due to a lack of good reference measurements. Conclusion: IsenseU-BP+ measures PTT with high quality during supine rest and exercise and could therefore be suitable for deriving noninvasive continuous BP, although evaluation during exercise was limited due to inaccurate reference BP measurements. Significance: Continuous, noninvasive measurement of BP would be highly beneficial in a number of clinical settings. Systems currently considered as the gold standard for the investigation of hypertension carry considerable limitations, which could be overcome by the method proposed here.

• Strisland, Frode; Svagård, Ingrid Storruste; Austad, Hanne Opsahl & Reitan, Jarl (2017). Meeting end user needs in collaborative medical device technology development research projects: A qualitative case study. Studies in Health Technology and Informatics.  ISSN 0926-9630.  237, s 49- 54 . doi: 10.3233/978-1-61499-761-0-49 Full text in Research Archive. Show summary

  The aim of this case study has been to investigate to what extent user centered design (UCD) methodologies have been applied, how the process and outcomes were perceived by project team members, and what were potential barriers towards meeting end user needs. The case studied was the European Union Framework 7 integrated project d-LIVER (2011-2015), which aimed at developing an integrated care system for chronic liver disease patient management. d-LIVER is an example of a public funded, international, multidisciplinary, collaborative research project where development starts from a low technology readiness level, but where research is motivated by societal needs for better health care solutions. Awareness of central end user needs are therefore crucial. 14 project participants were interviewed. To meet societal and end user needs represent a prominent motivation factor for participants. The project organization with only clinical partners interacting with end users was accepted as a fact of life and not as a project pain point. A summary of observations and recommendations for good practice is given.

• Strisland, Frode; Vedum, Jon; Liverud, Anders Erik; Dalgard, Steffen Harald; Brødreskift, Tomas; Albert, Bruno; Noyvirt, Alexandre; Setchi, Rossitza; Vene, Karl; Herranen, Henrik; Kirs, Maarjus; Antal, Andrea; Schellhorn, Klaus & Sjaaheim, Haldor (2017). Portable qEEG and HD-tCS device for point-of-injury traumatic brain injury diagnostics. Studies in Health Technology and Informatics.  ISSN 0926-9630.  237, s 198- 203 . doi: 10.3233/978-1-61499-761-0-198 Full text in Research Archive. Show summary

  Mild Traumatic Brain Injury (mTBI) can cause prolonged or permanent injuries if left undetected and ignored. It is therefore of great interest to lower the threshold for diagnosis of individuals with mTBI injury. We report on the development of a prototype of a portable quantified EEG (qEEG) system intended for in-the-field mTBI diagnostics. The 32-electrode system is fully battery driven, is interfaced with a control unit being part of a telemedicine care system. Electrode montage is a central problem effectively challenging measurements outside clinical environments. The system concept is unique in the sense that it will allow an automated montage process employing a flexible, disposable, one-size-fits-all electrode cap. All electrodes are individually configurable so that they can be used for both wet and dry qEEG electrodes. All electrodes can also be individually configured to allow Trans-Cranial Current Stimulation (tCS) sessions in DC, AC or other current supply modalities. The system has been functionality tested in end-to-end configurations where all control and measurement signals are forwarded between the head device on one side and the user interface and telemedicine system on the other. Tests confirm that the device can acquire and forward EEG data from 32 channels in parallel at target sensitivities up to 1 kHZ sampling frequencies. Additional device clinical evaluation is planned.

• Albert, Bruno; Noyvirt, Alexandre; Setchi, Rossitza; Sjaaheim, Haldor; Velikova, Svetla & Strisland, Frode (2016). Portable Decision Support for Diagnosis of Traumatic Brain Injury. Procedia Computer Science.  ISSN 1877-0509.  96, s 692- 702 . doi: 10.1016/j.procs.2016.08.252 Show summary

  Early detection and diagnosis of Traumatic Brain Injury (TBI) could reduce significantly the death rate and improve the quality of life of the people affected if emergency services are equipped with tools for TBI diagnosis at the place of the accident. This problem is addressed here by proposing a portable decision support system called EmerEEG, which is based on Quantitative Electroencephalography (qEEG). The contributions of the paper are the proposed system concept, architecture and decision support for TBI diagnosis. By the virtue of its easily operable mobile system, the proposed solution for emergency TBI diagnosis provides valuable decision support at a very early stage after an accident, thereby enabling a short response time in critical situations and better prospects for the people affected.

• Albert, Bruno; Zhang, Jingjing; Noyvirt, Alexandre; Setchi, Rossitza; Sjaaheim, Haldor; Velikova, Svetla & Strisland, Frode (2016). Automatic EEG Processing for the Early Diagnosis of Traumatic Brain Injury. Procedia Computer Science.  ISSN 1877-0509.  96, s 703- 712 . doi: 10.1016/j.procs.2016.08.253 Show summary

  Traumatic Brain Injury (TBI) is recognized as an important cause of death and disabilities after an accident. The availability a tool for the early diagnosis of brain dysfunctions could greatly improve the quality of life of people affected by TBI and even prevent deaths. The contribution of the paper is a process including several methods for the automatic processing of electroencephalography (EEG) data, in order to provide a fast and reliable diagnosis of TBI. Integrated in a portable decision support system called EmerEEG, the TBI diagnosis is obtained using discriminant analysis based on quantitative EEG (qEEG) features extracted from data recordings after the automatic removal of artifacts. The proposed algorithm computes the TBI diagnosis on the basis of a model extracted from clinically-labelled EEG records. The system evaluations have confirmed the speed and reliability of the processing algorithms as well as the system’s ability to deliver accurate diagnosis. The developed algorithms have achieved 79.1% accuracy in removing artifacts, and 87.85% accuracy in TBI diagnosis. Therefore, the developed system enables a short response time in emergency situations and provides a tool the emergency services could base their decision upon, thus preventing possibly miss-diagnosed injuries.

• Austad, Hanne Opsahl; Vedum, Jon; Hamremoen Røed, Morten; Dalgard, Steffen Harald; Brødreskift, Tomas; Liverud, Anders Erik; Strisland, Frode & Seeberg, Trine Margrethe (2016). An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure, In James Gilbert (ed.),  BIOSTEC 2016: 9th International Joint Conference on Biomedical Engineering Systems and Technologies, February 21-23, 2016, in Rome, Italy.  SciTePress.  ISBN 978-989-758-170-0.  Kapittel.  s 179 - 186 Show summary

  There is a clinical need for improved ambulatory, frequent and unobtrusive monitoring of blood pressure and cardiac parameters like systolic time intervals. Truly unobtrusive wearable devices combining impedance cardiography with other sensors may be one possible solution. The IsenseU-BP+ device presented in this article measures single channel ECG, impedance cardiography and photo plethysmography at the chest. The device also measures activity and posture, as well as skin temperature. In this study, we report on the possibility to use these signals to measure pulse transit time for estimating blood pressure changes. Six subjects has been tested. Four of them showed good correlation between PTT and mean arterial pressure while two of the subjects had too low signal to noise ratio in the photoplethysmography signal for good estimation of PTT. Thus these results show that the quality of the raw data is promising for calculating a pulse transit time that shows good coherence with mean ar terial pressure.

• Seeberg, Trine Margrethe; Vedum, Jon; Sandsund, Mariann; Austad, Hanne Opsahl; Liverud, Anders Erik; Vardøy, Astrid-Sofie Borge; Svagård, Ingrid Storruste & Strisland, Frode (2014). Development of a wearable multisensor device enabling continuous monitoring of vital signs and activity, In  Biomedical and Health Informatics. IEEE-EMBS International Conference. 2014. (BHI 2014), Valencia, Spain, 1-4 June 2014.  IEEE Press.  ISBN 9781479921324.  Health Information Systems II.  s 213 - 218 Show summary

  This paper reports on the development and testing of a wearable device intended as a component in an ambulatory system for health monitoring of physical rehabilitation patients. The device measures heart rate, skin temperature, activity level and posture on the user's chest. The wearable device has been run through a set of verification tests and the accuracy has been validated in controlled environment on 12 healthy volunteers. A long term user pilot with 5 congestive heart failure patients and their nurses was performed to test the whole system. The conclusion from the performed tests is that the developed wearable multisensor monitoring device is reliable, accurate, easy to use and fit for the purpose

• Sjaaheim, Haldor; Albert, Bruno; Setchi, Rossi; Noyvirt, Alexandre & Strisland, Frode (2014). A portable medical system for the early diagnosis and treatment of Traumatic Brain Injury, In  2014 IEEE International Conference on Systems, Man, and Cybernetics (SMC), October 5-8, 2014, San Diego, CA, USA.  IEEE.  ISBN 978-1-4799-3840-7.  artikkel.  s 2529 - 2534 Show summary

  Although Traumatic Brain Injury (TBI) is recognized as a major public health concern, there is currently no efficient method of fast and reliable detection of mild TBI at the point of need, where the injury has occurred. This paper addresses this problem by proposing a portable system for emergency TBI diagnosis and monitored personalized treatment based on quantitative electroencephalography (qEEG) and High Definition transcranial Electrical Stimulation (HD-tES). The paper highlights three innovative elements of the proposed system: its architecture, communication framework, and diagnostic process for detecting TBI in emergency situations.

• Svagård, Ingrid Storruste; Austad, Hanne Opsahl; Seeberg, Trine Margrethe; Vedum, Jon; Liverud, Anders Erik; Mathisen, Bjørn Magnus; Bendixen, Ole Christian; Keller, Barbara; Osborne, Phyllis & Strisland, Frode (2014). A Usability Study of a Mobile Monitoring System for Congestive Heart Failure Patients, In Christian Lovis; Brigitte Séroussi; Arie Hasman; Louise Pape-Haugaard; Osman Saka & Stig Kjær Andersen (ed.),  e-Health – For Continuity of Care.  IOS Press.  ISBN 978-1-61499-431-2.  artikkel.  s 528 - 532 Show summary

  Sensor-based monitoring of congestive heart-failure (CHF) patients living at home can improve quality of care, detect exacerbations of disease at an earlier stage and motivate the patient for better self care. This paper reports on a usability study of the ESUMS system that provides continuous measurements of heart rate, activity, upper body posture and skin temperature via a sensor belt and a smartphone as patient terminal. Five CHF patients were included in the trial, all recently discharged from hospital. The nurses experienced continuous heart rate, activity and posture monitoring as useful and objective tools that helped them in their daily assessment of patient health. They also saw the system as an important educational tool to help patients gain insight into their own condition. Three patients liked that they could have a view of their own physiological and activity data, however the smartphones used in the study turned out to be too complicated for the patients to operate. A smartphone is built to be a multi-purpose device, and this may (conceptually and practically) be incompatible with the patients' demands for ease of use

• Strisland, Frode; Svagård, Ingrid Storruste; Seeberg, Trine Margrethe; Mathisen, Bjørn Magnus; Vedum, Jon; Austad, Hanne Opsahl; Liverud, Anders Erik; Kofod-Petersen, Anders & Bendixen, Ole Christian (2013). ESUMS: A mobile system for continuous home monitoring of rehabilitation patients. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  35th, s 4670- 4673 . doi: 10.1109/EMBC.2013.6610589 Show summary

  The pressure on the healthcare services is building up for several reasons. The ageing population trend, the increase in life-style related disease prevalence, as well as the increased treatment capabilities with associated general expectation all add pressure. The use of ambient healthcare technologies can alleviate the situation by enabling time and cost-efficient monitoring and follow-up of patients discharged from hospital care. We report on an ambulatory system developed for monitoring of physical rehabilitation patients. The system consists of a wearable multisensor monitoring device; a mobile phone with client application aggregating the data collected; a service-oriented-architecture based server solution; and a PC application facilitating patient follow-up by their health professional carers. The system has been tested and verified for accuracy in controlled environment trials on healthy volunteers, and also been usability tested by 5 congestive heart failure patients and their nurses. This investigation indicated that patients were able to use the system, and that nurses got an improved basis for patient follow-up

• Seeberg, Trine Margrethe; Røyset, Arne Karstein; Jahren, Susie & Strisland, Frode (2011). Printed organic conductive polymers thermocouples in textile and smart clothing applications. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  33, s 3278- 3281 . doi: 10.1109/IEMBS.2011.6090890 Show summary

  This work reports on an experimental investigation of the potential of using selected commercially available organic conductive polymers as active ingredients in thermocouples printed on textiles. Poly(3, 4- ethylenedioxythiophene): poly(4 styrenesulfonate) (PEDOT:PSS) and polyaniline (PANI) were screen printed onto woven cotton textile. The influence of multiple thermocycles between 235 K (+38°C) and 350 K (+77°C) on resistivity and thermoelectric properties was examined. The Seebeck coefficients of PEDOT:PSS and PANI were found to be about 18 μV/K and 15 μV/K, respectively, when metal-polymer thermocouples were realized by combining the polymer with copper. When polymer-polymer thermocouples were formed by combining PEDOT:PSS and PANI, a thermoelectric voltage of about 10 μV/K was observed. A challenge recognized in the experiments is that the generated voltage exhibited drift and

• Johannessen, Rolf; Oldervoll, Frøydis & Strisland, Frode (2008). High Temperature Reliability of Aluminium Wire-Bonds to Thin Film, Thick Film and Low-Temperature Co-fired Ceramic (LTCC) Substrate Metallization. Microelectronics and reliability.  ISSN 0026-2714.  48(10), s 1711- 1719 . doi: 10.1016/j.microrel.2008.06.008 Show summary

  Reliable interconnects are essential for microelectronic systems intended for long life times in harsh environment applications. Intermetallic growth accelerates as the temperature increases, and the material system must be carefully selected to avoid mechanically and/or electrically weak connections. The dominating chip metallization is aluminium, and aluminium wire-bonding is therefore recommended to obtain a mono-metallic system at the chip level. A suitable substrate metallization compatible with aluminium wire-bonds at high temperatures (HT) should therefore be found. Test substrates with low temperature co-fired ceramic (LTCC) silver conductors plated with nickel/gold, gold and aluminium thin film, gold thick film, and silver thick film plated with copper/nickel/gold have been manufactured.  Wedge-wedge aluminium wire-bonding were performed with 25 µm aluminium wire on the substrates before they were subjected to long term ageing at temperatures up to 250ºC for 6 to 12 months.  Bond-pull-strength and electrical resistance were measured during ageing on selected components. The present work shows that long term reliable aluminium wire-bonding for 250ºC operation is feasible both with thin film, thick film and LTCC substrate technology. For the screen-printed conductors, a plating system with nickel is necessary. Aluminium wire bonded to gold thin film display reliable long term high temperature performance for gold thicknesses up to   ~1 µm.

• Johannessen, Rolf; Oldervoll, Frøydis & Strisland, Frode (2008). High temperature reliability of aluminium wire-bonds to thin film, thick film and low temperature co-fired ceramic (LTCC) substrate metallization. Microelectronics and reliability.  ISSN 0026-2714.  48(10), s 1711- 1719 . doi: 10.1016/j.microrel.2008.06.008
• Ramstad, Audun; Strisland, Frode; Ramsvik, Trond & Borg, Anne (2000). CO adsorption on the Pt/Rh(100) surface studied by high-resolution photoemission. Surface Science.  ISSN 0039-6028.  458, s 135- 146
• Ramstad, Audun; Strisland, Frode; Ramsvik, Trond & Borg, Anne (2000). CO adsorption on the Pt/Rh(100) surface studied by high-resolution photoemission. Surface Science.  ISSN 0039-6028.  458, s 135- 146
• Ramstad, Audun; Strisland, Frode; Raaen, Steinar; Borg, Anne & Berg, Cecilie (1999). CO and O%c adsorption on the Re/Pt(111) surface studied by photoemission and thermal desorption. Surface Science.  ISSN 0039-6028.  440, s 290- 300
• Ramstad, Audun; Strisland, Frode; Raaen, Steinar; Worren, Turid; Borg, Anne & Berg, Cecilie (1999). Growth and alloy formation studied by photoelectron spectroscopy and STM. Surface Science.  ISSN 0039-6028.  425, s 57- 67
• Berg, Cecilie; Venvik, Hilde Johnsen; Strisland, Frode; Ramstad, Audun & Borg, Anne (1998). Nucleation and growth of Au overlayers on Pt(100)-hex-R0.7%0 studied by STM and photoelectron spectroscopy. Surface Science.  ISSN 0039-6028.  409, s 1- 15
• Strisland, Frode; Ramstad, Audun; Berg, Cecilie & Raaen, Steinar (1998). The surface core-level shift of the Nb(110) surface. Philosophical Magazine Letters.  ISSN 0950-0839.  78/199(3), s 271- 276 Show summary

  The surface core level shift (SCLS) of the Nb(110) surface has been determined by means of high resolution core level photoelectron spectroscopy of the Nb 3d5/2 core level. A SCLS of (180 ± 15) meV towards higher binding energy with respect to the bulk component was estimated by curve fitting of Nb 3d5/2 core level spectra taken using several photon energies.The sign of the SCLS agrees with recent ab initio calculations including both initial- and final-state effects, but the shift is significantly smaller than predicted in these calculat ions.

• Strisland, Frode; Ramstad, Audun; Berg, Cecilie & Raaen, Steinar (1998). Valence variations in the monolayer regime of Sm on the Nb(110) surface. Surface Science.  ISSN 0039-6028.  410, s 344- 350 Show summary

  Sm overlayers in the monolayer regime, deposited onto a Nb(110) single crystal surface at room temperature, have been studied by means of high resolution photoelectron spectroscopy of the Nb 3d5/2 core level and the Sm valence band. In the sub-monolayer regime the Sm valence varies from mainly divalent for very low coverages to essentially trivalent close to the completed monolayer. Above one monolayer a new divalent component appears in the Sm 4f spectra, corresponding to divalent Sm in the second layer. The mixed valence in this over layer system is concluded to be heterogeneous (all Sm atoms have integer, but site-dependent valence). Sm forms ordered overlayers on Nb(110), and the Sm growth is consistent with a layer-by-layer growth mode (Frank-van der Merwe growth).

• Strisland, Frode; Ramstad, Audun; Ramsvik, Trond & Borg, Anne (1998). CO adsorption on the Rh(100) surface studied by high resolution photoelectron spectroscopy. Surface Science.  ISSN 0039-6028.  415, s L1020- L1026

View all works in Cristin

• Halvorsrud, Ragnhild; Røhne, Mette; Celius, Elisabeth Gulowsen; Moen, Stine Marit & Strisland, Frode (2019). Application of Patient Journey Methodology to Explore Needs for Digital Support. A Multiple Sclerosis Case Study.
• Hassel, Bjørnar & Strisland, Frode (2019). Forstå hvordan jeg har det. Sensorteknologi for personer med sterkt begrensende kommunikasjonsevner. Show summary

  Mennesker med alvorlig grad av utviklingshemming eller andre omfattende funksjonsnedsettelser kan ha sterkt reduserte eller manglende evner til å uttrykke seg verbalt eller på andre måter. De kan derfor ha problemer med å uttrykke smerte eller andre ubehag, og de kan reagere med selvskadende eller aggressiv atferd uten at bakenforliggende årsak blir kjent. Kan enkle fysiologiske målinger, slik som pulsmåling, brukes som en ekstra indikator for å hjelpe tjenestene tolke hva som foregår?

• Seeberg, Trine Margrethe; Albrektsen, Sigurd Mørkved; Dalgard, Steffen Harald; Strisland, Frode; Tjønnås, Johannes & Hoel Rindal, Ole Marius (2019). AutoActive Project - Tools and Methods for Autonomous Analysis of Human Activities from Wearable Device Sensor Data.
• Røhne, Mette; Halvorsrud, Ragnhild; Strisland, Frode; Moen, Stine Marit & Celius, Elisabeth Gulowsen (2018). Digital oppfølging og støtte for personer med multippel sklerose. Erfaringer fra prosjektet MS-DOS. SINTEF Rapport. 2018:00744. Full text in Research Archive. Show summary

  MS-DOS er et forprosjekt som undersøker muligheter for at personer med multippel sklerose (MS) og relevante helseaktører kan ta i bruk digitale hjelpemidler for bedre oppfølging, behandling og mestring av sykdommen. Målet for MS-DOS er å samle informasjon om hvilke utfordringer personer med MS opplever på grunn av sin sykdom, og vurdere i hvilken grad digitale verktøy kan gjøre livet bedre for denne gruppen. Denne rapporten gir et overblikk over helsetilbudet til personer med MS. Deretter presenteres resultater fra en dybdestudie hvor vi følger tre personer med MS over en periode på seks uker. Metoden vi har brukt er observasjon og intervjuer, samt kartlegging av planlagte og reelle pasientforløp ved hjelp av Customer Journey Modelling Language. Rapporten presenterer til slutt muligheter for bruk av digitale støtteverktøy, og forslag til videre studier Oppdragsgiver: Helsedirektoratet ved Innomed

• Berntsen, Gro Karine Rosvold; Strisland, Frode; Kayser, Lars & Rumpsfeld, Markus (2017). OPTimized eHealth for Individuals with Multi-morbidity And Long-Term needs - OPTIMAL.
• Seeberg, Trine Margrethe; Austad, Hanne Opsahl; Røed, Morten Hamremoen; Strisland, Frode & Dalgard, Steffen Harald (2017). Nytt "pulsbelte" kan måle blodtrykket. UNICARD.
• Seeberg, Trine Margrethe; Austad, Hanne Opsahl; Vedum, Jon; Liverud, Anders Erik & Strisland, Frode (2017). Nytt "pulsbelte" kan måle blodtrykket. UNICARD.
• Strisland, Frode; Svagård, Ingrid Storruste; Austad, Hanne Opsahl & Reitan, Jarl (2017). Meeting end user needs in collaborative medical device technology development research projects: A qualitative case study.
• Strisland, Frode; Vedum, Jon; Liverud, Anders Erik; Dalgard, Steffen Harald; Brødreskift, Tomas; Albert, Bruno; Noyvirt, Alexandre; Setchi, Rossitza; Vene, Karl; Herranen, Henrik; Kirs, Maarjus; Antal, Andrea; Schellhorn, Klaus & Sjaaheim, Haldor (2017). Portable qEEG and HD-tCS device for point-of-injury traumatic brain injury diagnostics. Show summary

  Mild Traumatic Brain Injury (mTBI) can cause prolonged or permanent injuries if left undetected and ignored. It is therefore of great interest to lower the threshold for diagnosis of individuals with mTBI injury. We report on the development of a prototype of a portable quantified EEG (qEEG) system intended for in-the-field mTBI diagnostics. The 32-electrode system is fully battery driven, is interfaced with a control unit being part of a telemedicine care system. Electrode montage is a central problem effectively challenging measurements outside clinical environments. The system concept is unique in the sense that it will allow an automated montage process employing a flexible, disposable, one-size-fits-all electrode cap. All electrodes are individually configurable so that they can be used for both wet and dry qEEG electrodes. All electrodes can also be individually configured to allow Trans-Cranial Current Stimulation (tCS) sessions in DC, AC or other current supply modalities. The system has been functionality tested in end-to-end configurations where all control and measurement signals are forwarded between the head device on one side and the user interface and telemedicine system on the other. Tests confirm that the device can acquire and forward EEG data from 32 channels in parallel at target sensitivities up to 1 kHZ sampling frequencies. Additional device clinical evaluation is planned.

• Albert, Bruno; Noyvirt, Alexandre; Setchi, Rossitza; Sjaaheim, Haldor; Velikova, Svetla & Strisland, Frode (2016). Portable Decision Support for Diagnosis of Traumatic Brain Injury.
• Albert, Bruno; Zhang, Jingjing; Noyvirt, Alexandre; Setchi, Rossitza; Sjaaheim, Haldor; Velikova, Svetla & Strisland, Frode (2016). Automatic EEG Processing for the Early Diagnosis of Traumatic Brain Injury.
• Austad, Hanne Opsahl; Liverud, Anders Erik; Strisland, Frode; Ausen, Dag & Reitan, Jarl (2016). Sensorer til støtte for avstandsoppfølging av kronisk syke. SINTEF Rapport. A27802. Full text in Research Archive.
• Austad, Hanne Opsahl; Vedum, Jon; Hamremoen Røed, Morten; Dalgard, Steffen Harald; Brødreskift, Tomas; Liverud, Anders Erik; Strisland, Frode & Seeberg, Trine Margrethe (2016). An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure.
• Berntsen, Gro Karine Rosvold; Strisland, Frode; Rotvold, Gunn-Hilde; Reitan, Jarl; Røhne, Mette; Pedersen, Rune; Bellika, Johan Gustav; Nicolaisen, Kristian & Fensli, Rune Werner (2016). Forskningsprotokoll -VerDig Verdiskapende Digitale Samhandlingsløsninger for Pasientens helsetjeneste. NSE-rapport. 09-2016.
• Strisland, Frode (2016, 31. august). Vil tilby umiddelbar SMELLSJEKK. [Tidsskrift].  Aftenposten Vitenskap.
• Strisland, Frode & Dragland, Åse Kirsti (2016, 12. mai). "Star Wars" helmet for detecting concussion. [Internett].  Science Nordic.
• Strisland, Frode & Dragland, Åse Kirsti (2016, 04. mai). «Star Wars-hjelm» påviser hjernerystelse. [Tidsskrift].  www.gemini.no.
• Strisland, Frode; Svagård, Ingrid Storruste; Austad, Hanne Opsahl & Reitan, Jarl (2016). Meeting End User Needs in International Research Projects Aiming to Develop Medical Device Technology Prototypes for Integrated Care: A Case Study. International Journal of Integrated Care.  ISSN 1568-4156.  16(5) . doi: 10.5334/ijic.2591
• Strisland, Frode; Svagård, Ingrid Storruste; Austad, Hanne Opsahl & Reitan, Jarl (2016). Meeting end user needs in international research projects aiming to develop medical device technology prototypes for integrated care - A case study.
• Liverud, Anders Erik; Dalgard, Steffen Harald; Fleurey, Franck; Vedum, Jon; Røed, Morten Hamremoen; Badii, Atta; Oudi, Hamid; Kahn, Ali & Strisland, Frode (2015). A Multimodal Human Sensory System to support Mobile Gait Rehabilitation.
• Seeberg, Trine Margrethe; Vedum, Jon; Sandsund, Mariann; Austad, Hanne Opsahl; Liverud, Anders Erik; Vardøy, Astrid-Sofie Borge; Svagård, Ingrid Storruste & Strisland, Frode (2014). Development of a wearable multisensor device enabling continuous monitoring of vital signs and activity.
• Svagård, Ingrid Storruste; Austad, Hanne Opsahl; Seeberg, Trine Margrethe; Vedum, Jon; Liverud, Anders Erik; Mathisen, Bjørn Magnus; Keller, Barbara; Bendixen, Ole Christian; Osborne, Phyllis & Strisland, Frode (2014). A Usability Study of a Mobile Monitoring System for Congestive Heart Failure Patients.
• Jara, Maximilian; Lock, Johan F.; Malinowski, Maciej; Jones, David E.; Kiefer, Stephan; Strisland, Frode; Neuhaus, Peter & Stockmann, Martin (2012). d-LIVER - A potential solution for outpatient management of chronic liver failure. Hepatology.  ISSN 0270-9139.  56, s 1090A- 1091A
• Strisland, Frode (2012). d-LIVER - A potential solution for outpatient management of chronic liver failure.
• Ausen, Dag; Strisland, Frode; Balasingham, Ilangko; Øyri, Karl & Næss-Ulseth, Eirik (2008). Den trådløse pasienten. Helse, Medisin, Teknikk.  (2), s 19- 21
• Strisland, Frode; Ausen, Dag; Svagård, Ingrid Storruste & Bendixen, Ole Christian (2008). Continuous, Ambulatory Remote Monitoring of Vital Signs for Improved Life Quality. Show summary

  Sensor systems for home vital signs monitoring are mainly focused on discrete point measurements (weight, blood glucose, short period ECG trace), during which time the patient is constrained to be at rest next to the monitoring station.  However, several user groups would benefit from continuous remote monitoring that ensures their freedom of movement. Temporary continuous monitoring can provide better safety of patients discharged from day care surgery procedures and allows more efficient medication adjustments,. Permanent monitoring is an alternative for patients with serious cardio-vascular diseases that otherwise would have been trapped in a hospital bed.  Similarly, soldiers or workers in hostile/harsh environments can benefit from vital signs monitoring in assurance that injuries will cause alerts and a prompt rescue. Vital signs monitoring is challenging in several respects, for example obtaining reliable sensor data and interpretation models for the data, achieving user acceptance and ease-of-use, and integration the existing health care system and care processes.  We report on work carried out to do continuous remote monitoring of vital signs .  Parts of the work have been carried out within the US-Norway Medicom telemedicine research program, in which also a soldier vital signs monitoring demonstrator system has been developed. This system allows live monitoring of a user’s heart rate, respiration rate, body posture, activity, temperature and pulse oximetry, and transmission of data to an internet-accessible data storage using cell phone technology.  In addition, we report on work to implement increased use of wireless monitoring systems in the Norwegian civilian health care sector. 

• Johannessen, Rolf; Oldervoll, Frøydis; Strisland, Frode & Storstrøm, Olav Barros (2007). Long Term High Temperature Reliability of Aluminium Wire-Bonds to Thin Film, Thick Film and LTCC Substrate Metallizations. Show summary

  There is an increasing demand for sensors and electronics that can be operated in demanding environments with high temperature (HT), pressure and vibrations. Applications include sensors and actuators for down-hole well logging and control, and distributed control systems for automotive and aerospace industry.Reliable interconnects are essential for making microelectronic systems with long life time in harsh environments. Intermetallic growth accelerates as the temperature increases, and the material system must be carefully selected to avoid mechanically and electrically weak connections. Standard chip metallization is aluminium, and aluminium wire-bonding is recommended to obtain a mono-metallic system at the chip level. The challenge is to find a suitable substrate metallization compatible with aluminium wire-bonds at high temperatures.SINTEF has evaluated several different substrate metallizations with respect to long term wire-bond reliability. Thick film gold and silver thick film plated with copper-nickel-gold, gold and aluminium thin film and LTCC silver conductor plated with nickel-gold have been among the candidates. Test substrates with the different metallizations were fabricated and wedge-wedge aluminium wire-bonding was performed with 25 mm AlSi or AlMg wire. The substrates were subjected to long term ageing at temperatures in the range 200 to 250 deg C. The duration of the test was minimum 6 months and some of the test substrates have been running for 2.5 years. Bond pull-strength and/or electrical resistance were measured during ageing. After ageing, selected wire-bonds were cross-sectioned and inspected using scanning electron microscopy.The results obtained show that gold thick film on ceramic substrate is not suitable for aluminium wire-bonding in HT environment. The bond-pull strength is reduced to 1 gram after 6 months ageing at 250ºC. This is related to a degradation of the wire-bond by AuAl intermetallic growth and corresponding Kirkendall void

• Strisland, Frode (2007). Hvilke parametre er interessante å måle i et ""Trådløs pasient""-perspektiv?.
• Strisland, Frode (2007). Wearable Technology and Sensors in Protective Clothing. Show summary

  Presentation on the current status and challenges for using wearable technology and sensors in protective clothing.

• Øhlckers, Per; Johannessen, Rolf; Oldervoll, Frøydis; Storstrøm, Olav Barros & Strisland, Frode (2007). High temperature reliability of aluminium wire-bonds to thin film, thick film and LTCC substrate metallization.
• Øhlckers, Per; Johannessen, Rolf; Oldervoll, Frøydis & Strisland, Frode (2007). Performances of thin and thick film resistors exposed to high temperature and high pressure (200º C & 1000 Bar), In  Proceedings EMPC 2007 : the 16th European Microelectronics and Packaging Conference & Exhibition, June 17-20, 2007.   s 678 - 682
• Berg, Cecilie; Venvik, Hilde Johnsen; Borg, Anne; Ramstad, A.; Andersen, J.N.; Nyholm, R.; Sorensen, S.L. & Strisland, Frode (1996). Growth and structure of the Au on Pt(100) overlayer system. MAX-lab Activity Report. ..

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