2000-1 University of Illinois at Chicago The Intersection of Virtual Reality and Tele-immersion with...

2000-1 University of Illinois at Chicago

The Intersection of Virtual Reality and Tele-immersion with

REUNA Networking ConferenceValparaiso, Chile --- April 4, 2001

Walter B. Panko, PhD – Professor, Health Informatics


Virtual Reality: The Future has Arrived

3-Dimensional Education

Simulations

Pre-Treatment planning

CAVE, Immersadesk, and NGI technologies currently applied

to surgery

School of Biomedical and Health Information Sciencesand Department of Surgery, College of Medicine


Virtual Reality in Medicine LaboratoryEstablished 1997

Medical artists

Physicians

Bioengineers

Engineers

Programmers

Graphics Experts

“Integrating virtual reality technologies

into the practice of medicine”



Underlying Theme

Strength through Collaboration


Underlying Theme

Strength through Collaboration, thus

is our natural partner


Next Generation Internet

List of Major Partners

Electronic Visualization Lab - UIC


VRMed Lab Mission

“The Killer App”


Key CollaborationElectronic Visualization Lab

- Virtual Reality systems, software and networking

-They develop, we apply

-Close collaboration

Electronic Visualization Lab


ImmersaDeskTM

Image by Tycho Hoogland


ImmersaDeskTM

Image by Tycho Hoogland


Tele-Immersive Virtual Reality

• Two or more ImmersaDeskTM systems– stereo vision– viewer centered perspective– large angles of view– interactivity

• Networked collaboration (using CAVERNsoft)– converse, see each other, and point in 3D!

Electronic Visualization Lab


This project has been funded in whole or in part with Federal funds from the National Library of Medicine, National Institutes of Health, under Contract No. N01-LM-9-3543.




Adding Value via Collaboration


Biomedical Tele-Immersion forthe Next Generation Internet

Electronic Visualization and Networking Tom DeFanti, PhDBiomedical Visualization and Tele-Immersive Environment Co-PI Mary Rasmussen, Ray Evenhouse, Sean Prokasy Greg Blew, Fred Dech, Zhuming Ai, PhD, J.J. KempinersDomain (Colorectal, Otolaryngology, and General Surgery) Russell K. Pearl, MD Theodore Mason, MD W. Scott Helton, MDEvaluation and Medical Education

Marcia Edison, PhDPrincipal and Co-Principal Investigator Jonathan C. Silverstein, MD, MS, Walter B. Panko, PhD



Department of Otolaryngology - Head and Neck Surgery

Virtual Temporal Bone

Collaborators:

Dept. of Otolaryngology - Head and Neck Surgery

Dept. of Surgery, UICUniversiteit Utrecht, Nederland


Temporal Bone Anatomy

• Highly complex• Critical to understanding common problems• Surgeon’s conceptual visualization difficult to

achieve with 2D illustrations or photos• Cadaver dissection even difficult

– many repeated attempts to learn

• Few local experts in any region



• Histologic sections digitized• Structures segmented by hand drawing around

structures by medical artists with domain experts• 3-Dimensional surface geometry files generated

– IsoView (Metro-Web), Cosmo Worlds (SGI)

– VRML 2.0 files displayed in Performer (SGI)

• Displayed in Networked ImmersaDesks using CAVERNsoft (Tele-Immersive Virtual Reality)

Temporal Bone Methods



Dept. of Otolaryngology - Head and Neck Surgery,


Browser Demonstration Version of Virtual Temporal Bone







Virtual Pelvic Floor

Collaborators:

Division of Colon and Rectal Surgery,

Cook County Hospital, Chicago, IL

Dept. of Surgery, UIC

Division of Colon and Rectal Surgery, Cook County Hospital, Chicago





Virtual Pelvic Floor Video - Internet2 Members














Virtual Cranioplasty

Tele-Immersive environments for surgery

• Cranial defects due to disease or trauma

• Virtual Reality and virtual prototyping











Virtual Cranioplasty

Expected Results•Improved Appearance•Improved Protection•Surgery time cut to 1/3•Hospital stay from 7 to 2 days

Unexpected Results•Increased blood flow to brain•Increased cerebrospinal fluid (CSF) pressure•Increased cognitive function


Eye Diseases in Virtual Reality

Collaborators:

Dept. Of Ophthalmology and Visual Sciences, UIC

Electronic Visualization Lab, UIC















Content expert: Balaji K. Gupta MD1

Production/direction: Mary Rasmussen2

VR software/programming: Zhuming Ai2

Modeling: Ja Lu Lin3

1. Dept. of Ophthalmology and Visual Sciences, UIC

2. VRMedLab, UIC

3. Electronic Visualization Lab, UIC


Radiological Tele-Immersion for Next Generation Networks

Collaborators:

Dept. of Radiology, UIC

Electronic Visualization Lab, UIC

Distributed, collaborative,

stereoscopic visualization

and manipulation

of three-dimensional

radiological image data



Radiological Tele-Immersion

VR software/programming: Zhuming Ai, PhD, Fred Dech

Content expert: Jonathan Silverstein M.D.

This project has been funded in part with Federal funds from the National Library of Medicine, National Institutes of Health, under Contract No. N01-LM-9-3543 and Grant R01-LM-06756-01.


Virtual Reality: The Future has Arrived

3-Dimensional Education

Simulations

Pre-Treatment planning

CAVE, Immersadesk, and NGI technologies




Barriers yet to conquer

• BarrCost

Ubiquitous high-performance networking (1GB >=)

Cultural change


Barriers yet to conquer

• BarrCost – trends are in right direction

Ubiquitous high-performance networking (1GB >=)

Cultural change – may be hardest part

Fit In?

Quality of Service (QoS) Issues

Where Does


QoS

• Basic Types– Resource reservation– Prioritization

• Need?– More traffic– More demanding applications

• In healthcare, applications demand more frequent.


Tele-Immersion QoS Requirements

• Bandwidth needs: High

• Priority: High

• Multicast

• Guaranteed bandwidth


Remote Surgery or Simulation QoS Requirements

• Bandwidth needs: Moderate

• Priority: Highest

• Low Latency

• Guaranteed bandwidth


Distributed Anatomy Lab QoS Requirements

• Bandwidth needs: Low-moderate

• Priority: Low-medium

• Low Latency

• Guaranteed bandwidth: Not needed


Compared to other domains, the need for “big pipe” is not as

important.

Caveat



www.internet2.edu

TM

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