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Real-Time Clinical Informatics

We have accumulated strong expertise is comprehensive clinical data collection, such as vital sign data recording (VSDR) system for real-time automatic patient data collection from pre-hospital (Ambulances, Helicopters) to the bed side (Resuscitation, OR, PACU and ICU’s).

We have developed innovative applications to exploit the real-time data for difference purposes. We developed sophisticated signal processing methods to integrate real-time clinical sensor information (VS, Video, Alarm) for enhance real-time operation and research. One example is based on the live OR patient vital signs, automatic mapping it to the patient In / Out status for OR management.

Real-time data about the patient is highly valuable. Advances are made to measure the patient in increasingly comprehensive methods, ranging from gene expressions to thermal imaging of perfusion.

We developed the Auto Patient vital signs and events Data Acquire (APDA) systems for both pre-hospital and in hospital care.

Key Expertise Areas

‌Pre and In Hospital Real-Time Patient Vital Signs and Events Data Collection Systems

I) Pre-Hospital Vital Signs Data Collection Network 

  1. Pre-hospital In-Flight and Ambulance Patient Information Collection Network
  2. Pre-hospital automatic patient Vital Signs data collection system

  3. Pre-hospital VS list and events markers:
    - Trended VS collected every second (HR, SpO2, SpO2-PR, ECG-HR, ETCO2, BP, Temp)
    - Waveforms collected 182 points per second (ECG1, ECG2, SpO2, CO2)

  4. Pre-hospital VS list and events markers:
    - Trended VS collected every second (HR, SpO2, SpO2-PR, ECG-HR, ETCO2, BP, Temp)
    - Waveforms collected 182 points per second (ECG1, ECG2, SpO2, CO2)
  5. VSDR viewer


II) In-Hospital real-time patient VS data collection network 

  1. Trended VS list - captured every 5 seconds (HR, SpO2, BP, ETCO2, Temp, etc.)
  2. Waveform list - captured 240 points per second (ECG, SpO2, CO2, etc.)
  3. Alarms (VT>2, PVC HI, HRLO, V BRAby, etc)
  4. Bed Monitor Usage Status 

III) Real-time VS collection database 

IV) Publications 

  • Hu P, Defouw G, Mackenzie CF, Handley C, Seebode S, Davies P, Floccare D, Xiao Y. What is happening to the patient during Pre-Hospital Trauma Care?. Proceedings of American Medical Informatics Association, P61. 2006  
  • Hu P, Defouw G, Mackenzie CF, Davies P, Seebode S. Vital Signs Data Recording (VSDR) System for Pre-Hospital Trauma Care. Telemedicine and e-Health, 12(2):166. M1B3. 2006  
  • Dutton RP, Hu PF, Das K, Gilbert T, Xiao Y. Can Temperature Probe Removal be a Reliable Indicator of Case Finishing?. Anesthesiology. 2007  
  • Hu P, Xiao Y, Ho D, Mackenzie CF, Hu H, Voigt R, Martz D. Advanced Visualization Platform for Surgical Operating Room Coordination: Distributed Video Board System. Surgical Innovation. 13(2):129-135. 2006  
  • Xiao Y, Hu P, Hu H, Ho D, Dexter F, Mackenzie CF, Seagull FJ, Dutton D. An algorithm for processing vital sign monitoring data to remotely identify operating room occupancy in real-time. Anesthesia & Analgesia,(101)3:823-829 . 2005  
  • Xiao Y, Dexter F, Hu FP, Dutton R. Usage of Distributed Displays of Operating Room Video when Real-Time Occupancy Status was Available . Anesthesia and Analgesia (accepted). 2007  

For additional information, please contact - Chief Technologist for Shock Trauma Center

Interfacing Technology to Auto Communicating with Patient Monitors, Measuring Devices

  • Pre-hospital (In-flight and in-Ambulance) APDA system has real-time interfaces with patient monitors (Propaq 204, 206 Lifepaq 12), on board GPS, PDAs, Laptops, Cameras, Microphones, ambulance door, speed and strature sensors.
  • In Hospital APDA system interfaces in real-time with patient bed side monitor (GE Marquette, Mannan, Nellcor, Criticare, Licox, Propaq, Siemens Ventilators), OR Schedules and multi-channel real-time videos patient bays (TRU, OR, PACU, CT)

Networking and integrating diverse medical data sources in real-time systems

  • We developed the in-hospital auto patient vital sings and events collection network (APDA-Net) covers Shock Trauma Center (TRU, OR, PACU, CT, ICUs.) and University of Maryland Medical Center (ASCU, OR, PACU, ICU)
  • Pre-hospital APDA-Net covers Medvac bases, in-flight data recording, and Shock Trauma Center / MIMESS real-time wireless data transfer and mining

Algorithms to Process Data to Support Decision Making in Real Time

  • Auto OR patient In and Out status indicator based on real-time patient vital signs.
  • Real-time OR occupancy and prediction for better OR coordination and planning.
  • Video image processing alg for addressing patient and staff confidentiality.
  • Real-time trauma patient integrated status display based in flight patient VS and events.

Integrated Multimedia Networks for Telemedicine, Disaster Management & Home

  • International telemedicine and disaster management network connected with (Australia, China, France, Germany, and NATO)
  • We design and developed integrated telemedicine network based on Many to One to Many (MOM) architecture.
  • Telemedicine control center test bed at Shock Trauma Center covers (12TRUs, 6 ORs ,2CTs and 9 PACUs)
  • Telemedicine Control Center at UMMC covers 19 OR suites
  • Mobile telemedicine system for tele-Stroke care covers 3 intro-hospital transfer ambulances (Expresscare)
  • Fix telemedicine system for remoter Stroke, Trauma and Orthopedic care.

Active Projects

  • Real-time patient and key event data acquisition and processing in pre-hospital settings (Vital Signs Data Recorder-VSDR)
  • Automated status display for operating room management (VBS)
  • Signal acquisition and processing to monitor patients with traumatic brain injury
  • Integrated video-audio data acquisition in trauma and surgery (VASNET )
  • Telemedicine testbed (Telecontrol Center)