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Developing a Practical Wearable Telemedicine System for Emergency and Mobile Medicine

Developing a Practical Wearable Telemedicine System for Emergency and Mobile Medicine. November 22, 1998. Martin Dudziak, PhD Tamara Koval, MD Medical College of Virginia and Silicon Dominion Computing, Inc. Presentation Outline. Mobile Telemedicine Issues and Motivations

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Developing a Practical Wearable Telemedicine System for Emergency and Mobile Medicine

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  1. Developing a Practical Wearable Telemedicine Systemfor Emergency and Mobile Medicine November 22, 1998 Martin Dudziak, PhD Tamara Koval, MD Medical College of Virginia and Silicon Dominion Computing, Inc.

  2. Presentation Outline • Mobile Telemedicine • Issues and Motivations • Requirements and Demands • Mobile Wearable PCs • TransPAC and MediLink • Methods for Testing and Evaluation

  3. Issues and Motivations for Mobile Telemedicine • Increased mobility of general population • Decreased centralization of health services • Expansion of electronic medical records • Increased use of imaging and video • Need for more remote/home health care • Increased role of assistant-level staff

  4. Effective Mobile Medical Communications: Requirements • Convenient • Common Standards • Interoperability • Upgradeable • Customizable • Interchangeable • Secure

  5. Mobile Wearable PCsforPatient Data Access and Acquisition • Evolution in Computing Platforms • Maturation in Telecommunications • Advances in Data Compression • Availability and Readiness of Data • Advances in Security, Power, and Storage

  6. Three Examples

  7. Pros and Cons of the Wearable PC • Full PC features, compatibility • Lightweight, convenient to carry • Speech, pen, keyboard, mouse inputs • Internet-capable; large memory, storage capacity • Expensive • Dangling wires and parts • Hardware and speech quirks • Not user-friendly for general population

  8. TransPAC Alternative Integrated Approach Current and Projected Medical Enterprise Data Systems Adaptable Ergonomic Wearable PC Practical speech, smart card, video, intranet functionality TransPAC with MediLink

  9. A Systems Engineering Approach to Telemedicine • Mobile network emphasizing seamless communication for data and voice • Medical process and flow continuity: Enhance, do NOT disrupt • Adapting to institutional data management and “IT” structures, not demanding alternatives • RequirementsSpecifications Design RAP / RAD Implementation

  10. TransPAC Mobile Computing Platform • Modular and wearable PC (Windows95/98) • High-end graphics and video features and extensibility (128MB+, 200MHz+, 2 GB+) • Speaker-independent and speaker-custom speech recognition • Wireless Internet modem • Direct link with image and database servers • Smart card for access and transaction registry

  11. CD/DVD/Tape Unit CRT or LCD Display Beltpack or Bodypack Carrying Unit Microphone AC Power Adapter Base System Unit Headphones Extension Pack Kbd / Mouse Battery Pack Wireless Modem Cell Phone Parallel Data Acquisition Device(s) PCMCIA Data Acq Device(s) RS232 Data Acquisition Device(s)

  12. TransPAC Function and Data Flow Testing/Engineering/Maintenance System Databases (typical scenario: ModelServer Discovery with connectivity to Oracle databases) Field Office/ Lab 2 Task dataset loaded onto Active Session Card in Base Station PC PC (Base Station) Active Session Card 1 Card Reader 6 Active Session Card returned to Base Station PC for upload 3 Wearable PC with CardReader built-in or as plug-in (PCMCIA interface) Active Session Card Active Session Card GPS Keyboard/ mouse/pen input 5 4 Work completed and Active Session Card time-stamped and ready for upload through BASE station In-field data collection process; data processed on PC and stored on Active Session Card Camera or video (MAGVISION) Internet access Voice input

  13. TransPAC Internal Data Model

  14. MediLink Key Features • Patient-oriented application session and auto-managed files and folders • Freeform Writing Pad with graphic and video options (cut-and-paste and links) • Patient-oriented distributed database access protocol • BodyMap graphic interface for patient records • Standard internet browser functions • Multimedia data acquisition & imaging functions

  15. MediLink Application

  16. Enter new patient basic data newsession folder jgsmythe-243-67-9631 folder SESSION DATA FLOW new_session.htm header file jgsmythe-243-67-9631.htm header file Download from server, enter notes, drawings, capture video, EKG, other data Store on server, session card, hard drive jgsmythe-243-67-9631 folder jgsmythe-243-67-9631.htm header file

  17. On-Board Interactive Assistance • Speech-to-Text-to-Database • Customized speaker-independent vocabularies for command, control, entry • Patient record pointers eliminate searching, keystrokes, commands • Image comparison and differentiation tool for real-time image analysis

  18. Wireless Intranets

  19. Wavelet-Based Image Compression Fetal faceUltrasound 72K 50:1, 7K 125:1, 2K Huntington’s MRI+SPECT overlay 44K 100:1, 7K 200:1, 4K

  20. Adaptive Pattern Recognition - Like Humans Do It

  21. Another Example - Cutting Through the Noise

  22. Acknowledgements • Slava Vaseken, Silicon Dominion • TransPAC Design Team • Interactive Solutions, Inc. • Bentley Systems, Inc.

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