For
information, visit http://www.

Vitrea(R) is a registered trademark of Vital Images, Inc.
Vital Images disclaims any proprietary interest in the marks and names of
others.

Other software is just for the static case: do polyhedra collide; if so, by how much do they penetrate; and if not, how far away from each other are they?
Much of the software supports general 'polygon soups': an arbitrary set of polygons in 3-D (typically triangles) with no connectivity information required.

convex algorithm

Moreover, the clip is
easily visualized in the jaw during the ligation process , allowing for
accurate tissue placement.gyrx.
"The Vital Images installed base of more than 1,900 licenses provides a
ready market for this attractive package," said Jay D.

collision photon

While also used in GYN and urological
procedures, the clip's technology allows its ligation force to remain
constant , especially on shrinking tissue. The companies will jointly sell R2 Technology's ImageChecker(R) CT
Lung CAD software integrated into Vital Images' recently released CT Lung
visualization option .

robust canny

"
Vital Images developed the CT Lung visualization option and recently
introduced it in Vitrea (R) 2, Version 3.

About ImageChecker CT Lung
R2 Technology's ImageChecker CT Lung CAD application combines innovative
lung nodule detection algorithms with a variety of measurement and display
tools for more efficient and accurate analysis.

collisions algorithm

The company has developed scaleable ligation clip technology that will
improve surgical outcomes.endoxllc. This application can play an
important role in lung cancer diagnosis, monitoring and treatment follow-up
comparisons.
R2 Technology is the only company to receive FDA approval for the use of
CAD in improving the detection of actionable lung nodules during review of
multi-detector CT chest exams. As a medical software company, R2 Technology is developing CAD
systems for a variety of imaging modalities and disease states.r2tech.

coldet detection

JACKSONVILLE , Fla.
Visu-Loc is used in general surgery to ligate the cystic duct during
laparoscopic cholestectomy procedures. The clip's ligation force is developed by
the coil in the rear of the clip, allowing the clip to be placed onto tissue
without being dependant on the applier's jaw force. Vital
Images cost effectively brings 3D visualization and analysis into the day-to-
day practice of medicine.

detection collide

The clip is pre-formed in a closed state allowing the legs
to be under tension or pre -load. Lauderdale, FL.Companies Will Co-Market R2 Technology's CT Lung CAD Software Integrated Into
Vitrea(R) 2's CT Lung Visualization Option

MINNEAPOLIS, Vital Images, Inc . "By pairing our CT Lung visualization
option with R2 Technology's innovative lung CAD capabilities , we are providing
customers the best of both worlds. By serving as the physician's
"second pair of eyes", the ImageChecker CT Lung CAD algorithm automatically
highlights potential actionable lung nodules and quickly computes reproducible
measurements of detected regions.
ImageChecker is a registered trademark of R2 Technology, Inc.

coldet triangles

introduction has been extremely well received and will
lead to our international product release next month. This new agreement will create a technology solution
that combines Vital Images' core competency of advanced visualization with
R2's core competency of CAD.
"We are proud of our ImageChecker CT Lung CAD software's ability to
improve nodule detection and physician productivity.

arbitrary algorithm

"This U. Today, finding lung cancer at an early,
more treatable stage is the exception rather than the rule.

About R2 Technology, Inc.

Except for the historical information contained herein, the matters
discussed in this news release are forward-looking statements within the
meaning of the Private Securities Litigation Reform Act of 1995 that involve
risks and uncertainties which could cause results to differ materially from
those projected, including dependence on market growth, the timely
availability and acceptance of new products, the impact of competitive
products and pricing, dependence on major customers, fluctuations in quarterly
results, third-party reimbursement, the availability of capital and other
risks detailed from time to time in Vital Images' SEC reports, including its
most recent report on Form 10-K for the year ended December 31, 2004.

hierarchies canny

The disposable multi-fire
applier contains 20 clips.
(Nasdaq: VTAL), a leading provider of enterprise-wide advanced visualization
solutions, and R2 Technology , Inc.

triangles detection

, headquartered in Sunnyvale, Calif., is a recognized
leader in the development and commercialization of computer-aided detection
(CAD), an innovative technology that assists radiologists in the earlier
detection of breast cancer and in improving the detection of actionable lung
nodules.

Most of the software provide complete collision detection, allowing objects to move dynamically while detecting collisions among them.

aligned coldet

From the surgeons' point of view, the Visu-
Loc clip easily ligates the most robust cystic duct.

About Vitrea 2
Vitrea 2 software is Vital Images' advanced medical imaging software for
diagnostic evaluation of computed tomography (CT) and magnetic resonance (MR )
image data. Press releases, examples of 3D medical imaging and
other corporate information are available on Vital Images' Web site at
http://www.

keerthi polygons

Since the clip is pre-
formed, the clip is delivered through a 5mm trocar port while offering a 13%
longer clip compared to clips from 10mm devices.vitalimages.

collision penetrate

The Visu-Loc will be exhibited at the Society of American Gastrointestinal
Endoscopic Surgeons (SAGES) meeting April 13-16 in Ft.7. An R2 Technology research
study demonstrated that use of the ImageChecker CT Lung CAD system can
increase the detection of actionable lung nodules by calling attention to
potential abnormalities. The
company's technology utilizes high-speed volume visualization and analysis, as
well as network communications based on DICOM and Internet protocols.com .

convex collide

Each applier is packaged at six per box. For further information, visit the website at
http://www.com .

collide canny

S. CAD algorithms examine a CT chest study and
automatically mark areas warranting further examination, thereby increasing
diagnostic accuracy and physician productivity. Vitrea 2 software features real-time navigation of 3D volume
data, permitting the user to create two and three -dimensional views of human
anatomy, and to interactively navigate within these images to better visualize
and understand internal structures and disease conditions.

triangles collisions

"
The Visu-Loc patent-pending titanium clip is a leading breakthrough in
clip technology.

arbitrary collision

Miller, Vital Images
president and chief executive officer.

hierarchies coldet

Endox LLC Announces the U.S. Release of Its Visu-Loc 5mm Endoscopic Clip Applier

S.

About Gyrx LLC:
Gyrx, headquartered in Jacksonville, Florida, was established in 2003 with
a mission to develop and manufacture innovative medical devices for worldwide
use .

Software for detecting collisions among geometric objects.

Other software exploits the structure of special objects, such as convex polyhedra.

canny collide

obb canny

We look forward to
working with Vital Images to broaden distribution of this unique combination
of CAD and advanced visualization solutions," said John Pavlidis , president
and chief executive officer of R2 Technology.

penetrate polygon

For investor relations, please contact:

Bill Dennis
President/CEO
(904) 641 2599

About Endox LLC:
Endox was established to market and sell leading endoscopic products
worldwide.

Vital Images and R2 Technology Sign Joint Sales and Marketing Agreement

R2 was given
the 2004 Frost and Sullivan Product of the Year award for its innovative CAD
product for lung nodule detection for chest Multi -Detector CT exams.

interference penetrate

, Gyrx LLC and Endox LLC, its
wholly owned endoscopic subsidiary, announced the U. Therefore, we are
seeing growing interest among radiologists and oncologists in advanced
visualization and CAD solutions.
R2 Technology, Inc. In addition,
Vitrea 2 software utilizes an intuitive clinical workflow and automatic
settings to improve speed and simplicity over other visualization techniques.

arbitrary polytopes

release of its Visu-Loc
5mm endoscopic clip applier.
The Gyrx research and development team spent two years, with global
surgeon input, designing Visu-Loc. For further information, visit the website
http://www.com ., the market leader in computer-aided
detection (CAD) technology, have signed a three-year sales and marketing
agreement. Additionally, the new agreement will allow for
closer collaboration with sales and marketing.com .

convex noncommercial

"The many special features and benefits of both our clip and its delivery
system offer surgeons a compelling product alternative while improving patient
outcomes such as better cosmesis and less pain," said Sharon Dennis, Endox's
president .

About Vital Images
Vital Images, headquartered in Minneapolis, Minnesota, is a leading
provider of enterprise-wide advanced visualization solutions for use in
disease screening applications , clinical diagnosis and therapy planning.