Meet the New
 Physician’s
 Assistants

 New York-based BioDigital Systems uses CG
 animation to create accurate medical simulations.
 by Evelyn Jacobson

On a typical Friday Aaron Oliker is
often in one of the operating
rooms at New York University’s
medical school, standing alongside a sur-
geon observing intently as a knee re-
placement is started or as a heart sur-
gery is completed. Oliker witnesses pro-
cedures performed by some of the coun-
try’s most talented physicians as part of
his research for creating some of the
most anatomically accurate 3D medical
simulations available.
   “To be able to do the animations, you
have to know the surgeries just as well as
the doctor,” says Oliker, technical director
of 3D simulations and partner in BioDigi-
tal Systems, a New York city-based com-
pany that specializes in creating every-
thing from 3D simulated surgical training
port real date from Computed Tomogra-
phy CT) scans that allowed him to come
up with and accurate surgical model for
the CD-ROM, which is now considered one
of the foremost training tools for the sur-
gery.
   Seven years later, Oliker is using his
skills and combining his abilities with
those of partners John Qualter, a medical
animator who heads BioDigital Systems’
animation division, and Frank Sculli, a bio-
medical engineer who leads the compa-
ny’s informatics department (who gath-
ers and plugs the data into the programs),
to create peer-reviewed products that
are on the cutting edge of technology for
a range of clients that include hospitals,
pharmaceutical and medical device com-
panies and medical schools.
   
accurate come from
medical centers the
company partners with,
like Memorial Sloan-Ket-
tering Cancer Center
and St. Luke’s Hospital's
Image Reading Center.
To create a stem cell
animation that explains
how using stem cells af-
fects the brain for Stem
Cell Therapeutics, a
small Canadian biotech
firm, the team used real
data from Magnetic
Resonance Imaging
(MRI) scans to create
the animated brain.
   

Aaron Oliker


Frank Sculli


John Qualter
“The more people see these animations, the more
people will see the value of 3D medical visualization
and how it can be used to educate, plan surgeries
or create new procedures.”
                          —Aaron Oliker, partner and tech director
                          of 3D simulations at BioDigital Systems
tools to animations that show how drugs
work to databases for cancer institutes.
“You have to see it, and when you create
it, it has to be right because [these ani-
mations are] what people will be using to
train with.”
   Oliker began observing procedures while
working on a training DVD that launched
his career in 3D medical visualization. In
1999, he became involved with
SmileTrain a charitable organization that
provides free cleft palate surgeries to
children who would otherwise not receive
care. Working with Dr. Court Cutting, he
developed an animated CD-ROM to show
doctors in Third World countries how to
perform the surgeries. He created Maya
plug-ins to im-
   To create their nonfiction 3D visualiza-
tions, Oliker, Qualter and their respective
teams use the same tools as a Hollywood
animator: After Effects and Combustion
for compositing; Mental Ray for rendering
and Photoshop for texturing. Maya is the,
backbone for the firms’s 3D animations,but
they’ve created plug-ins specifically for
medical animation, as well as proprietary
technology and techniques that are used to
import real-time data and accelerate
processes. The datasets that allow their work to be anatomically
   The company’s prod-
ucts take anywhere
from two weeks to sev-
eral months to create
and can cost $10,000
and up depending on the
length of the project, and
exactly what's involved.
Often, for medical centers
and teaching hospitals, the
company works with
money from grants used to
develop these tools. Qualter
is currently working on a
project with New York
University School of
Medicine called Web
Initiative for Surgical
Education (WISE-MD)
where he is creating
76 November  2006 ANIMATION MAGAZINE www.animationmagazine.net


library of medical animations used to give third-year medical students an overview of different surgical procedures. “We have video footage of surgeries, and we create animations of surgeries and sync the animations to the video,” explains Qualter, who also often observes surgeries in order to animate them. “Students can log on the night before to see a particular proprocedure so everything is clear to them. [They’re looking] at a bloodless field, it’s colorful and we label the structures they’re seeing, so when they look over the shoulder of a doctor, they’re not so lost.”
   Originally created as a teaching tool for NYU, the project has gained national interest and educators are looking at ways to incorporate digital learning into curricula.
   With consistently improving technologies in such as nascent field, applications are constantly developing, even outside the scope of medicine and into related fields like law and criminal justice. Re-

cently BioDigital Systems helped the Boston Police Department digitally recreate the head of a murder victim. “That’s a potential new market that's evolving,” says Qualter. “This could be a whole new way of doing sketches for police departments around the world.”    Long term, the company is part of what they call the race to develop the complete virtual patient a digital human model where all systems work and can be manipulated to respond to different stimuli. BioDigital Systems has already developed a beating heart simulation where once data is imported can behave differ
ently according to what’s plugged think of it as internal motion capture. It’s been used in a simulation that shows cardiothoracic surgeons how a device for heart surgery works.
   But for now the biggest challenge is educating their future clients physicians, hospitals and other health care providers about what these 3D visualizations can do, especially in an industry that is slow to adapt to technology. “When people read something, it’s an effective training tool, but to see something it’s a much better learning device,” says Oliker. “The more people see these animations, the more people will see the value of 3D medical visualization and how it can be used to educate, plan surgeries or create new procedures.
  For more info, visit www.biodigitalsystems.com
Evelyn Jacobson is a Los Angeles-based journalist who specializes in entertainment.
 
www.animationmagazine.net ANIMATION MAGAZINE November  2006 77