Image-enabling the Enterprise: Filling the gap for EMR systems and optimizing PACS performance

Image-enabling the enterprise
Filling the gap for EMR systems and optimizing PACS performance
ABSTRACT
The future of medical imaging and the welfare of
patients dictate that patient images are
exchanged easily and rapidly across the
enterprise. Ideally, patient images are part of the
electronic medical record, but certainly this
exchange must be effective within and among
PACS, as well as RIS, HIS and other information
systems. Installed PACS, however, may not be
up to this task. Yet replacing a PACS system
can be very expensive and disruptive.
Carestream Vue can serve as the one and only
PACS for a facility. Or it can work with an
existing PACS, conserving resources at the
facility that uses a legacy system as an archive
for already stored studies.
When images are stored on several PACS, and
efficiency requires these systems to work
together, an integrator can be installed to create
a global imaging worklist. Carestream Vue for
Enterprise Workflow, powered by SuperPACS™
Architecture, can synchronize multiple worklists
on disparate PACS into such a worklist,
revealing information on installed PACS and
applying intelligent rules to balance workload at
multiple sites.
The best solution to prevent incompatibility in
the future is for sites to begin installing neutral
solutions. Carestream Vue for Vendor Neutral
Archiving provides this neutrality, lowering the
total cost of ownership of healthcare information
systems by replacing multiple outdated archives
and eliminating the future need to purchase
application-specific archives. Another
expression of neutrality is our Vue for Cloud-
Based Services, a Software-as-a-Service
(SaaS), which allows PACS and archiving to be
purchased on a predictable fee-per-use basis.
Extending the EMR to include images can be
done with a zero-footprint viewer, so named
because it requires no software to be
downloaded. Carestream’s Vue Motion viewer
can be embedded in EMR and HIS portals to
access images contained in a PACS. The result
is an image-enabled enterprise and EMR with
access to images through virtually any browser-
enabled device, running on various operating
systems on Macintosh or PC-based systems.
WORDS WITHOUT PIXELS
Billions of medical images are captured in the
U.S. each year. According to the market
research firm IMV Medical Information Division
in Des Plaines, IL, about 70 million CT and 30
million MRI procedures are performed annually,
each generating hundreds if not thousands of
individual images. In a year, Americans undergo
16 million nuclear medicine procedures, another
1.5 million PET scans, 37 million mammograms
and 183 million X-rays. Countless more patient
images result annually from cardiac cath,
angiography and ultrasound procedures.
Yet, few electronic medical records include
patient images, despite their obvious importance
in screening for disease, making diagnosis, and
determining the effects of therapy. They may not
even be available within enterprises, particularly
ones formed recently through the consolidation
of multiple facilities using different PACS.
Images provide the context for understanding
radiological interpretations. They add visual
detail that makes written conclusions easier to
understand and more complete. Consequently,
their absence hobbles collaboration among
radiologists and specialists, as it impairs
communications among radiologists, referring
physicians and their patients. Images can help
referring physicians home in on a patient’s
condition, demonstrating subtle findings that are
best appreciated visually. These same images
can serve as communications tools, helping the
physician convey information to patients about
their conditions.

Image-enabling the enterprise page 2
Given that images are a critical part of the
healthcare process and the means to make
them widely available is at hand, it stands to
reason that they should be easily accessible
throughout the enterprise, as well as an integral
part of the electronic medical record.
The problem with PACS. For the most part,
images are sequestered in PACS, where they
may be accessed by collaborators or referring
physicians only through labor-intensive efforts,
particularly when enterprises use more than one
PACS.
Even when enterprise-wide access is supported,
all images may not be immediately available.
The extraordinary volume of images generated
by today’s CT and MR systems can overwhelm
an outdated PACS, just as the rising demand for
rapid access to images can drag down its
performance and functionality. Underlying this
vulnerability is the dependence of legacy PACS
on dedicated high-end networks, complex
hardware configurations, and antiquated
archiving technology. Downtimes get longer and
delays happen more frequently due to failing
hardware. Such failures may necessitate
expensive upgrades or platform changes.
Operations at facilities undergoing such changes
can be seriously impaired, as this transition is
accomplished at the expense of efficiency.
Facilities may even experience long-term
problems, if the data are not properly transferred
to the enhanced or new PACS. For example, if
large datasets remain outside the PACS, they
might be accessed only through inefficient
interfaces.
Such inefficiencies may also occur when adding
a standalone workstation or thin-client system in
order to perform advanced visualization
techniques, such as 3D. Alternatively, they may
result when healthcare facilities consolidate.
Efforts aimed at reducing costs may actually
incur new ones through inefficiencies created
when trying to link multiple disparate PACS.
Similar problems may crop up when facilities link
the many data islands created by “ologies”
outside the mainstream of medical imaging.
Physicians in these circumstances may depend
on slow and costly methods to track down and
obtain patient images, printing films or burning
CDs and DVDs, wasting extraordinary amounts
of time and money, ironically when these
become ever more precious. This inefficiency
drives up the cost of patient care. But the
alternatives are worse.
Not having patient images can lead to
duplicative exams. This adds even more cost,
and in the case of imaging exams such as CTs,
radiography and nuclear medicine, additional
exams expose patients unnecessarily to
additional radiation. Not having critical images is
worst of all, as it introduces the potential for
error, raising the specter of missed diagnoses,
patient morbidity, and even avoidable death.
An avalanche of data. Installing and using
healthcare information systems that provide
ready access to patient data, including images,
is the answer. This was, in fact, the reason
PACS and RIS were among the first information
systems to be embraced by the medical
community. Their early adoption, however, has
led in some instances to a medical Tower of
Babel. Enterprises with multiple disparate PACS
may not be able to share data efficiently, as their
information systems are not compatible, existing
as islands of digital data.
Complicating matters is the increasing demand
for timely patient data, particularly among
multiple sites in expanding enterprises. This has
the cumulative effect of degrading the
performance and functionality of information
systems. This is happening just as the volume of
data is growing at an unprecedented rate in the
wake of modern developments in CT, MR and
digital radiography. Advanced visualization,
including 3D reconstructions and the fusion of
data sets from several modalities, have added
more pressure, as well the pending use of
breast tomosynthesis with its dozen or more
exposures per exam.
The end result threatens to overwhelm the ability
of legacy PACS to process, distribute and
archive images and other patient data.

Complicating matters for these legacy PACS is
their reliance on antiquated, dedicated networks
that in recent years have been made obsolete
by wired, wireless and Wi-Fi networks.
In an effort to link these systems with each
other, sites have constructed complex server
and client hardware configurations prone to
inefficiencies and failure. In the meantime, the
archive technology underlying these systems
has been left in the dust by massive leaps in
memory.
Underscoring the shortcomings of legacy PACS
is their lack of post-processing capabilities,
particularly advanced visualization techniques,
which are becoming increasingly common
elements of modern PACS.
But just as outdated PACS struggle to keep up,
challenges in data migration, including the
expense in time and money to do so, are
delaying the transition of sites to more advanced
PACS. Often the replacement process is
complex and time consuming. Early PACS
adopters are learning that DICOM compliance
does not guarantee easy data migration from
one system to another.
A big problem is that vendors typically have their
own ways of storing data. These may include
proprietary data management and compression
schemes. They may even involve multitier
storage technologies, including various digital
storage arrays, jukeboxes, and different types of
media that use different types of retrieval
technologies.
Under these circumstances, changing from one
PACS to another may not only be challenging
but highly disruptive to clinical operations,
impeding the usual diagnostic process by
slowing access to prior images during the
transition to the new system. This can reduce
productivity throughout the enterprise until the
migration is done.
Government Funding Accelerating IT
adoption. Adding a sense of urgency to the
upgrading of image-enabled IT systems is a
federal mandate on the U.S. medical community
to convert from paper to electronic records. This
mandate, defined by the American Recovery
and Reinvestment Act of 2009, offers a near-
term carrot in the form of added reimbursement
for the adoption of electronic medical records
through 2015 and a long-term stick poised to
exact penalties for noncompliance in the years
after.
Where exactly radiology fits in is not certain.
Radiology was not specifically included in the
first of three stages of meaningful use criteria
required to qualify for the earliest of the added
reimbursements. Those for stage 2, which may
yet have a role for radiology, are still in
development.
Radiology may get some traction in meaningful
use by utilizing RIS/PACS and enterprise image
access technologies. Through the modern
integration of RIS/PACS, radiologists could
potentially meet several key criteria. One
requires the implementation and tracking of
clinical decision support rules. Others call for
providing patients with electronic access to
health information, possibly in the form of
radiology reports; patient-specific educational
resources; and a summary of care records. An
easy-to-deploy image viewer, embedded in the
EMR, may be interpreted as addressing the
need to test the exchange of key clinical
information, as in images that illustrate an illness
or other patient condition supporting a diagnosis.
FILLING THE INFORMATION GAP
Regardless of what happens with the
government stimulus plan and meaningful use,
the future of medical imaging and the welfare of
patients dictate that patient images be
exchanged easily and rapidly across the
enterprise. Ideally this exchange will be as part
of the EMR but certainly within and among
PACS and health archive solutions, as well as
RIS, HIS and other information systems that
shape these records. Patient images should also
be available for viewing outside the enterprise.
Solutions are already at hand to meet these

challenges, supporting the upgrade of PACS
and RIS and the query of multiple information
systems, just as standard Internet connections
simplify their worldwide distribution.
Upgrading the PACS. When a currently
installed PACS is not up to current demands, a
decision must be made whether to augment or
replace it. Often the choice is to install a new
PACS integrated with RIS capability. The RIS
may be tailored to support the EMR, as well as
the construction of reports containing images.
An enterprise viewer might be installed to
enhance this capability. Such a viewer might be
optimized to work specifically with the new
PACS. Or, it may be compatible with a broad
spectrum of technologies, thereby offering
access to images throughout and even outside
the enterprise.
But a new PACS is not always an easy choice.
Replacing a legacy PACS can be very complex,
expending money and time, while disrupting
daily routines. Data migration is often the
biggest challenge. Its problems can be
mitigated, however, by installing a new-
generation PACS that can leverage
infrastructure from the legacy system until the
transition is complete. For example, some
vendors are offering metadata take-over tools
that allow the legacy PACS to become an
archive, making the data available as an integral
part of the new PACS workflow.
A single connector. Over the years myriad
PACS may have been installed at facilities that
are now part of an enterprise. In order to
improve the quality of patient care, while
simultaneously boosting productivity and
resource utilization, radiology operations at
these multiple sites must be streamlined and the
work coordinated. Replacing several PACS,
however, may not be practical due to the cost in
time and money to do so. A cost-effective
alternative is a variation on the theme of turning
old PACS into archives. In this case, an
integrator is installed to synchronize individual
worklists into a global imaging patient record for
diagnosis and review. This global imaging
record allows users from multiple sites to access
patient images easily and efficiently so as to
collaborate and balance workloads.
Staying neutral. The best solution to prevent
incompatibility in the future is to install vendor-
neutral solutions from this point onward. One
that immediately fits the bill is the vendor-neutral
archive. Because of its neutrality, this archive
accepts data from platforms developed by
different vendors. Serving as a centralized
storehouse of radiological as well as
cardiological images, for example, as well as lab
reports and video files, it reduces future costs
because the enterprise need not buy
application-specific archives. Similarly, it cuts
operating expense by reducing personnel
management tasks and equipment
maintenance. It also boosts efficiency by
creating a common workflow across multiple
locations and establishing a single point of
access to patient information, allowing this
information to be shared easily among
authorized users.
A viewer with the light stuff. An image viewer
that does not require software download (zero-
footprint) neatly fills the need to provide broad
access to patient images, a tough but critically
important consideration in any EMR. Zero
footprint offers many benefits. Like a web
browser, it requires no software to be
downloaded. It boots up instantly, ready to
search out and display images contained in the
RIS report.
It can be embedded inside an EMR system or
any routinely used information system.
Consequently, it allows the convenience of
single sign-in, eliminating the need for repeated
re-entry of passwords. Also, by embedding the
viewer in a commonly used information system,
users do not have to quit what they are doing in
order to see images.
Especially attractive is that such Web-based
viewers are not confined to a single system or
facility. Because they have a zero footprint, they
are compatible with just about any platform from
Windows- and Macintosh-based devices. Thus,

they provide secure access to images across
and beyond the enterprise for physicians and
patients alike.
With the viewer’s reach to all clinical
communities, providing diverse exposure to IT
while an intuitive design requires little or no
training for the end user, this technology can
free up implementation time and resources.
Because a zero-footprint viewer may have to
work in low-bandwidth environment, it does not
necessarily require the transfer of large volumes
of data over the Web. Instead most solutions
depend on the server to do the vast majority of
the rendering, thereby significantly reducing the
volume of data to be transmitted. And, because
the rendering is done on the server side, there
are no data storage requirements on the zero-
footprint side.
These viewers, therefore, can be easily
deployed, as the software upon which they
depend is loaded on the server. Consequently,
they are a snap to upgrade, as software
enhancements are done on the server. One
caveat is that the server must be powerful
enough to handle the large number of
concurrent users that may seek simultaneous
access to patient images.
SOLUTIONS BY CARESTREAM
Carestream Vue is a comprehensive solution
that covers every aspect of image augmentation
in the electronic medical record and across the
healthcare enterprise from display to data
archive, workflow to distribution. These can be
achieved with or without data migration and the
replacement of legacy systems.
To migrate or not to migrate. Carestream Vue
PACS can serve as the one enterprise PACS for
a facility. Or it can work in tandem with an
existing PACS, conserving the facility’s
resources to use this legacy system as an
archive for studies already stored on it.
For those who want to replace their legacy
system, we employ data migration technologies
that streamline the process and minimize
problems. We begin by taking a snapshot of the
legacy PACS. This snapshot populates the
registry to allow access to priors during data
migration and while new studies are being
stored on the new database. As a result, data
migration can run in the background throughout
the week, even during regular working hours.
Alternatively, response time on the database
can be maximized by migrating data only after
hours and on weekends.
Facilities may avoid data migration altogether by
using their legacy PACS as archives for prior
studies. These PACS can then be queried by
the newly installed Vue PACS. In this, an
external DICOM tier, called E-SIR, takes control
from the legacy PACS, turning it into an archive
and providing Vue PACS with access to the
legacy data.
The process begins with Vue for Enterprise
Workflow that works in concert with Vue PACS.
Vue Connect can scout all the studies contained
in the existing PACS, creating metadata in the
Vue PACS that describe each one. These
metadata serve as pointers to studies stored on
the legacy PACS, making all its study
information visible through the Vue PACS
worklist. When queries about these prior studies
are made using the Vue PACS, the pointers
guide the retrieval of their data. In this way we
make data migration optional.
Boosting workflow throughout the
enterprise. A similar process can be used to
conserve the resources of an enterprise that has
several legacy PACS, a process that not only
extends the value of these PACS but of their
accompanying storage devices. For this, Vue
Connect, powered by our unique SuperPACS™
Architecture, can synchronize multiple worklists
on disparate PACS into a global worklist. This
worklist reveals the information contained on
these legacy PACS and applies intelligent rules
to balance workload at multiple sites served by
these PACS, thereby boosting productivity.

Any exam captured anywhere in the enterprise
can be read by radiologists in any on-site or off-
site location. The global worklist defines how
these studies are routed to specialists and
supports multiple patient identification numbers
using IHE profiles.
Utilizing the unique SuperPACS™ Architecture,
patient images and other information are
securely shared among locations, while
radiologists at those locations have access to
powerful diagnostic tools. Vue Connect also
works with vendor-neutral archives to manage
multiple PACS at different facilities.
Staying neutral. Because vendor-neutral
archives provide a single point of access to
patient information, they facilitate data sharing
among multiple users in different locations. They
work independently of the PACS, storing data
from multiple systems in nonproprietary formats.
And they provide context management to allow
information to be transferred seamlessly among
different information systems.
Carestream Vue for Vendor Neutral Archiving is
a complete solution with archive and viewer,
lowering the total cost of ownership of
healthcare information systems by replacing
multiple archives and eliminating the future need
to purchase application-specific archives. It can
collect and store a variety of data, including
medical images, lab and pathology data, video
files and JPEGs to create a cohesive patient
portfolio. Scalable across multiple installations,
Vue Archive can be easily expanded. The
archive nodes that allow this expansion can be
configured to serve as backups for each other,
providing redundancy and assurance against
catastrophic failure. The Vue Archive also
protects against undue expense in the future,
supporting the cost-free migration of data to a
new PACS if, or when, required. This puts the
burden on vendors to earn their customers’
Site A
Site B
Site C
Site D
Metadata
Data
Center
Vue Connect: Enterprise Workflow

business rather than keeping it by holding
patient data hostage.
As an integral part of our RIS/PACS/reporting
offerings – Vue for Radiology and Vue for
Cardiology – Vue Archive acts as an IHE-XDS
(Integrating the Healthcare Enterprise-Cross
Document Sharing) to access medical images
throughout the enterprise. Utilizing the XDS
framework, our Vue Archive functions as a
registry, communicating with other systems such
as the RIS or HIS, which are enabled through
their support for DICOM, HL7, and other IT
standards. The result is a centralized repository,
archiving data from multiple information systems
across the enterprise.
Additional features include a master patient
index and DICOM tag morphing, which
standardizes data presentation throughout the
enterprise. Vue Archive manages patient IDs
from different sites and resolves metadata
discrepancies. This user-friendly repository
stores diverse clinical data, thereby enhancing
the value of these data to the enterprise and,
ultimately, to referring physicians and their
patients. This value is further enhanced through
a fully integrated viewer that can be easily
deployed to virtually any device running a web
browser or embedded into the EMR.
Enterprise access. Designed to distribute
images throughout and beyond the enterprise,
Vue Motion viewer works with virtually any
browser-enabled device to augment the
electronic medical record. This zero-footprint
viewer requires a minimum bandwidth despite
high performance and rapid access to images.
As an independent viewer, Vue Motion is PACS-
agnostic and can be integrated to other vendor’s
PACS, as well as DICOM archives and XDS
repositories. Because this viewer can be easily
integrated with diverse departmental systems,
clinicians and referring physicians gain fast and
easy access to patient data and images.
Particularly notable is its ability to be embedded
in EMR and HIS portals to access images
contained in a PACS, thereby image-enabling
the enterprise and the EMR. The viewer can be
launched without calling up a separate
application or logging into another system
integrated directly into an IS. Alternatively, it can
be launched in a separate window without
requiring a separate log-in, using a URL from
within the system.
Security and infinite scalability. As the
ultimate expression of neutrality, Vue for Cloud-
Based Services is a Service as a Solution
(SaaS), which allows PACS and archiving to be
purchased on a predictable fee-per-use basis.
This lowers the cost of ownership by reducing
investment in capital equipment and the need for
staff management personnel, as it eliminates the
risk of equipment obsolescence.
Our Vue for Cloud-Based Services approach
links affiliated hospitals, imaging centers, clinics
and other facilities through a global patient
worklist. This worklist enables providers to
balance their reading and reporting workload
among available radiologists, boosting
productivity, accelerating the reporting process,
and enhancing resource utilization.
Advanced reporting tools allow current and prior
exams to be automatically compared. Advanced
post-processing tools support analyses in such
studies as cardiac and coronary CT, vessel
segmentation, and PET/CT.
With deployment of ten data centers in five
countries throughout Europe and North America,
and with new centers planned for Japan and
Argentina, more than a billion images are
currently stored worldwide, representing more
than 500 terabytes of data securely managed by
Carestream using technology and services that
can be scaled to accommodate our customers’
growing needs.

What’s next. Your specific needs, in the context of your financial and IT resources, should determine
what you do and how you do it. You may need a new PACS, but you might want to operate your old and
new PACS together. You may want to link several PACS together or install a vendor-neutral archive as a
centralized repository, an SaaS, or a zero-footprint viewer.
MORE INFORMATION
Contact your Carestream Health representative, or visit http://www.carestream.com/healthIT
Carestream Health, Inc.
150 Verona Street
Rochester, NY 14608
© Carestream Health, Inc., 2011. CARESTREAM is a trademark of Carestream Health.
CAT 300 1002 2011-07-20
Vue Cloud: New Collaborative Workflow

Image-enabling the Enterprise: Filling the gap for EMR systems and optimizing PACS performance

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