Difference between revisions of "Medical WSNs"

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__TOC__
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= Challenges =
  
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= Medical devices =
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* reliability
 +
* privacy and security
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* power management - not all devices are battery powered
 +
* diversity - both a challenge and an opportunity
 +
* fast deployment - disaster recovery scenarios
 +
 
 +
= Medical modalities =
 +
 
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* ECG
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* SpO2
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* Blood pressure ([http://www.cardguard.com CardGuard])
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* Motion analysis board
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** for Parkinson's, to identify uncontrolled shaking and fine-tune dosage -- Code blue
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** for detecting falls -- UVA
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* [http://www.smiths-medical.com/Userfiles/oem/Oxilink_Oxilink%20II.pdf Oxilink OEM Oximeter]
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* [http://www.smiths-medical.com/Userfiles/oem/OEM.7127A2.pdf Oximetry board: integrated oximeter/ECG/respiratory board]
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* [http://www.smiths-medical.com/bci-oem/ Smith's Medical BCI OEM Technologies]
  
 
= Groups =
 
= Groups =
  
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* [http://www.cs.virginia.edu/wsn/medical/ University of Virginia]
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* [http://www.cs.virginia.edu/wsn/medical/ University of Virginia]: Alarm-NET
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*
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* Intel Research Seattle
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* University of Washington
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* University of Rochester
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* Harvard University
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* John Hopkins: AID-N
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* University of Alabama at Birmingham: [http://www.hires.uab.edu/index.htm  Advanced Network Infrastructure for Health and Disaster Management]
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* UIUC [http://lion.cs.uiuc.edu/assistedliving/index.html I-Living]
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'''Companies:'''
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* [http://www.intel.com/healthcare/index.htm?cid=cim:ggl|dighealth_us_digital|k9A2F|s Intel health ]
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 +
 
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'''People'''
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* [http://www.eng.uah.edu/~jovanov/  Emil Jovanov]
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= Projects =
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== Overview ==
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{| border="1" cellpadding="2"
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|-
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|width="100pt"|Project
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|width="200pt"|Domain
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|width="200pt"|Network Architecture
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|width="200pt"|Devices
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|width="200pt"|Sensors
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|width="200pt"|Provides
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|-
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|[[#CodeBlue| Code Blue]] || Patient monitoring || Flat architecture, just looks at collection  || Motes || SpO2, HR, EKG, motion || Patient monitoring, Reliable Routing, Localization
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|-
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|[[#AID-N | AID-N]] || Disaster recovery - Triage || Two-tier architecture, 802.15.4 and 802.11 || Motes, PDAs ||SpO2, HR, ECG || Patient monitoring, Continuous monitoring of triage levels
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|-
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| [[#SMART | SMART]] || disaster recovery, triage || 802.11b || PDAs || SpO2, ECG from MIT || vitals monitoring, analysis & alarms, localization
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|-
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| [[#Patient_Centric_Network_Project| Patient Centric Network Project]] ||  ||  ||  || || Signal processing algorithms
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|-
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| [http://www.cs.rochester.edu/~kautz/ac/index.html LACE: Laboratory for Assisted Cognition Environments] || Assisted living || X || X ||X ||
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|-
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|}
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 +
== [http://www.eecs.harvard.edu/~mdw/proj/codeblue/ CodeBlue] ==
 +
 
 +
* '''AMDR Routing''':
 +
** support for pub/sub
 +
** routing state proportional to the # of publishers (an entry in the table for each publisher)
 +
** route discovery initiated when a device requests to publish data, requires flooding
 +
** a subscriber that wants to receive data from a channel sends a route reply on the reverse path (handles asymmetric links)
 +
** routes are updated through periodic floods (every 15s)
 +
** negative results on mobility
 +
** path metric (PDR)
 +
*** for each link, estimate LDR by mapping the measured LQI to a link delivery estimator. This model is determined empirically.
 +
*** PDR is the product of all LDRs of the links along the path
 +
** see [http://www.eecs.harvard.edu/~mdw/papers/codeblue-techrept05.pdf CodeBlue Technical Report]
 +
 
 +
== [http://smart.csail.mit.edu/ SMART] ==
 +
Scalable Medical Alert Response Technology (SMART)
 +
 
 +
'''Notes:'''
 +
 
 +
Good background section.
 +
 
 +
'''References:'''
 +
# Curtis DW, Pino EJ, Bailey JM, Shih EI, Waterman J, Vinterbo SA, Stair TO, Guttag JV, Greenes RA, Ohno-Machado L, SMART An Integrated Wireless System for Monitoring Unattended Patients. J Am Med Inform Assoc 2008 January-February; 15(1):44-53.
 +
 
 +
== AID-N ==
 +
 
 +
* AID-N(Advanced Health and Disaster Network)
 +
* Uses CodeBlue devices
 +
* Uses Flows routing (part of [http://www.eecs.harvard.edu/~mainland/publications/ Flusk])
 +
 
  
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= Systems =
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'''References:'''
 +
# Tia Gao; D. Greenspan; M. Welsh; R.R. Juang; A. Alm, "Vital Signs Monitoring and Patient Tracking Over a Wireless Network," Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the , vol., no., pp.102-105, 2005
  
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= Alarm-NET =
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== Alarm-NET ==
  
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* Domain: assisted living, circadian activity rhythms
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* Domain: assisted living, circadian activity rhythms (CAR)
 
* Network architecture:  
 
* Network architecture:  
 +
** Spans body networks, sensor networks and IP networks
 +
** Query service to collect data
 +
** Emphasis on dynamic security
 +
** Use CAR information for security and power management
 
* Devices: heterogeneous - motes, PDAs and PCs
 
* Devices: heterogeneous - motes, PDAs and PCs
 
* Sensors:  
 
* Sensors:  
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== Papers ==
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== [https://www.wiisard.org/ WiiSard] ==
 +
 
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[http://www.calit2.net/newsroom/article.php?id=844 WiiSard Trial]
 +
 
 +
== [http://nms.csail.mit.edu/projects/pcn/ Patient Centric Network Project] ==
 +
 
 +
 
 +
 
 +
= Commercial products =
 +
 
 +
IntelliVue Phillips
 +
 
 +
- uses 802.11a/e
 +
 
 +
 
 +
http://www.medical.philips.com/main/products/patient_monitoring/products/intellivue802_11/index.wpd
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http://incenter.medical.philips.com/doclib/enc/fetch/2000/4504/577242/577243/577247/582646/583147/IntelliVue_Telemetry_System_brochure_(Non-US).pdf?nodeid=585849&vernum=4
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= Conferences =
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# [http://healthnet07.cs.uiuc.edu/index.html HealthNet 2007]
 +
 
 +
= URLs =
 +
[http://www.agingtech.org/index.aspx Great resource for assisted living projects]
 +
[http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=206104047 Band-aids ]

Latest revision as of 00:13, 15 December 2008


Challenges

  • reliability
  • privacy and security
  • power management - not all devices are battery powered
  • diversity - both a challenge and an opportunity
  • fast deployment - disaster recovery scenarios

Medical modalities

Groups


Companies:


People

Projects

Overview

Project Domain Network Architecture Devices Sensors Provides
Code Blue Patient monitoring Flat architecture, just looks at collection Motes SpO2, HR, EKG, motion Patient monitoring, Reliable Routing, Localization
AID-N Disaster recovery - Triage Two-tier architecture, 802.15.4 and 802.11 Motes, PDAs SpO2, HR, ECG Patient monitoring, Continuous monitoring of triage levels
SMART disaster recovery, triage 802.11b PDAs SpO2, ECG from MIT vitals monitoring, analysis & alarms, localization
Patient Centric Network Project Signal processing algorithms
LACE: Laboratory for Assisted Cognition Environments Assisted living X X X

CodeBlue

  • AMDR Routing:
    • support for pub/sub
    • routing state proportional to the # of publishers (an entry in the table for each publisher)
    • route discovery initiated when a device requests to publish data, requires flooding
    • a subscriber that wants to receive data from a channel sends a route reply on the reverse path (handles asymmetric links)
    • routes are updated through periodic floods (every 15s)
    • negative results on mobility
    • path metric (PDR)
      • for each link, estimate LDR by mapping the measured LQI to a link delivery estimator. This model is determined empirically.
      • PDR is the product of all LDRs of the links along the path
    • see CodeBlue Technical Report

SMART

Scalable Medical Alert Response Technology (SMART)

Notes:

Good background section.

References:

  1. Curtis DW, Pino EJ, Bailey JM, Shih EI, Waterman J, Vinterbo SA, Stair TO, Guttag JV, Greenes RA, Ohno-Machado L, SMART An Integrated Wireless System for Monitoring Unattended Patients. J Am Med Inform Assoc 2008 January-February; 15(1):44-53.

AID-N

  • AID-N(Advanced Health and Disaster Network)
  • Uses CodeBlue devices
  • Uses Flows routing (part of Flusk)


References:

  1. Tia Gao; D. Greenspan; M. Welsh; R.R. Juang; A. Alm, "Vital Signs Monitoring and Patient Tracking Over a Wireless Network," Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the , vol., no., pp.102-105, 2005

Alarm-NET

  • Domain: assisted living, circadian activity rhythms (CAR)
  • Network architecture:
    • Spans body networks, sensor networks and IP networks
    • Query service to collect data
    • Emphasis on dynamic security
    • Use CAR information for security and power management
  • Devices: heterogeneous - motes, PDAs and PCs
  • Sensors:
    • medical: pulse, blood oxygenaton
    • non-medical: temperature, light, infrared motion


References:

  1. A. Wood, G. Virone, T. Doan, Q. Cao, L. Selavo, Y. Wu, L. Fang, Z. He, S. Lin, J. Stankovic, “ALARM-NET: Wireless Sensor Networks for Assisted-Living and Residential Monitoring,” Technical Report


WiiSard

WiiSard Trial

Patient Centric Network Project

Commercial products

IntelliVue Phillips

- uses 802.11a/e


http://www.medical.philips.com/main/products/patient_monitoring/products/intellivue802_11/index.wpd http://incenter.medical.philips.com/doclib/enc/fetch/2000/4504/577242/577243/577247/582646/583147/IntelliVue_Telemetry_System_brochure_(Non-US).pdf?nodeid=585849&vernum=4

Conferences

  1. HealthNet 2007

URLs

Great resource for assisted living projects Band-aids

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