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SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE WITH WIRELESS LABORATORIES

SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE WITH WIRELESS LABORATORIES. SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE. Robert S. Crissman, Ph.D. Carlos Baptista, M.D., Ph.D. Department of Neurosciences Medical University of Ohio rcrissman@meduohio.edu.

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SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE WITH WIRELESS LABORATORIES

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  1. SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE WITH WIRELESS LABORATORIES SO YOU WANT TO CONVERT TO VIRTUAL SLIDES? OUR EXPERIENCE Robert S. Crissman, Ph.D. Carlos Baptista, M.D., Ph.D. Department of Neurosciences Medical University of Ohio rcrissman@meduohio.edu Dr. Crissman is a paid consultant of Bacus Laboratories. He has written brief descriptions for each virtual slide in their slide set.

  2. INTRODUCTION This is a description of our experience in successfully converting the first year microanatomy labs from glass slides and microscopes over to virtual slides viewed on computers with wireless connections to simultaneously serve a large number of students This was stimulated by the cost of maintaining and replacing microscopes and glass slides, increasing economic constraints and promoting increased learning efficiency for large groups of students

  3. INTRODUCTION Some medical schools have already successfully converted to virtual slides using hardwired computer labs • However, labs maybe limited size • due to cost limitations • Repetition of lab sessions to serve large classes • $60,000 just to hardwire 150 stations • Students supply own laptop computers

  4. STEPS OF CONVERSION PROCESS • Select company to generate digitized slides Bacus Labs generated our 126 virtual slide set • Select your best slides (fixation, structures, stain) • Set up infrastructure to deliver virtual images • Set up website for students to access Students have remote access 24/7

  5. 100Mbps Building Subnet 1Gbps Wireless Antenna Core Laptops 100Mbps 1Gbps Firewall Virtual Slide Server NETWORK INFRASTRUCTURE 04 Technically should work Only 20-25 computers on-line before system crashed Because strong positive response, decided to continue with wireless

  6. Firewall Core Building Subnet Load Balancer Wireless Antenna Laptops Virtual Slide Server 1 Virtual Slide Server 2 KEY POINTS IN WIRELESS SYSTEM 100MBps Dynamic a/b/g ANTENNA VIRTUAL SLIDE SERVER Improved system to handle 130+ simultaneous users for 05-06 COST

  7. 04-05 05-06 DOWNLOAD TIME % In 04-05 52% reported great hindrance In 05-06 Reversed 69% reporting slight hindrance

  8. Laboratory session with 150 students in lecture hall • 26 laptop computers provided and students bring their own • Virtual slide is projected on big screen (right) • Power Point presentation left

  9. One faculty member delivers virtual slides • Second circulates to answer individual question • With wireless can use anywhere on campus

  10. WEBSITE IMAGE • Three Browsers • Access to other schools slides • Create own Power Point images/atlases

  11. STUDENT PERCEPTIONS Surveyed students each year – Over 90% responded

  12. Block II % Practical Grades Block I STUDENT PERCEPTIONS Equivalent response for students who used both microscopes and virtual slides No significant difference in either practical or written microanatomy grades

  13. FACULTY PERCEPTIONS • More efficient: 1 - 2 faculty • Easier to point out structures • Better specimens & larger selection • All students looking at same slide • Less time on orientation & identification • Students learn faster

  14. SUMMARY • Deliver virtual slides over wireless connection • Supports large number of students simultaneously • Significant cost savings • Positive impact on students & faculty • The tool of choice for this generation is the • computer, not the microscope

  15. SPECIAL THANKS TO ALL THE INFORMATION SYSTEM PEOPLE THAT WORKED ON DESIGNING, TESTING AND TROUBLE SHOOTING THIS PROJECT Steve Swartz – Director Computer Services John Cavins – Director of Academic Computing Network SpecialistsWebsite Designers Philip Fox Bobbi Vaughan Paul Nelson Brian Szabo Donna Steppe Jamie Vargus Network Engineers Joe Kitting Mike Firsdon Chris Bauer

  16. NETWORK INFRASTRUCTURE 05 Laptop Specifications Pentium M, 1.70 GHz processor 209 MHz bus speed 504 MB RAM Intel Pro wireless 2200BG internal card Windows 2000 or XP OS GM/GME Intel (R) graphics video card with 64MB memory Wireless Antenna Three access points - Airspace model 4200 with 1120 thin access points Each with ~45Mb available bandwidth Capable of independent a/b or G ( speed) Load Balancing Virtual Slide Server HP Proliant DL380 G4 Server, Intel Xeon Processor 3.60 3.6 GHz processor speed 800MHz FSB speed 1MB L2 cache, 4 GB PC2100 Memory 6400 RAID Controller (256MB on-board cache) with 6, 72.8 GB hard drives

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