RayStation® 4.0 released

RaySearch Laboratories AB announces that version 4.0 of RaySearch's RayStation®
treatment planning system has been released for clinical use in several European
countries, USA, Japan, Australia and New Zealand, and is scheduled for market
release in Canada, China, and South Korea.

The new version includes a wide range of new features and improvements. For
example, RayStation® contains a unique solution enabling a more efficient
treatment planning process called Multi-criteria optimization. This highly
intuitive tool lets the clinician evaluate the impact of changing different
treatment priorities in real-time, which has a large potential to speed up the
time-consuming treatment planning optimization process. With RayStation® 4.0 the
tool for Multi-criteria optimization is extended with support for creating VMAT
treatments in addition to IMRT. This means that the system stands out as the
most intuitive treatment planning system for creating all advanced radiation
treatments.

Another new feature in RayStation® 4.0 is Atlas-based segmentation in the
patient modeling module which is a complement to the existing Model-based
segmentation tool. Atlas-based segmentation utilizes a structure template
framework to create a versatile auto-segmentation tool. It allows the users to
create organ atlases from clinical cases and new patients can then be segmented
by automatic deformable registration of the best-matching atlas in the clinical
database. The geometries in each atlas can be manually contoured or generated
with model-based segmentation.

RayStation® 4.0 also contains numerous improvements and additions throughout the
system such as several added features in 3D-CRT planning including support for
static arcs. It offers even faster optimizations due to refined multithreading
and improved handling of GUI updates during optimization. In the electron beam
design module support has been added for all relevant collimators and the proton
beam design module now supports the Mevion S250 machine. For a full list of new
features please refer to the release notes.

RayStation® 4.0 will be demonstrated at the upcoming annual AAPM meeting which
will be held August 4-8 in Indianapolis, Indiana.

“I firmly believe RayStation® is by far the most efficient tool on the market to
create advanced radiation treatments of the highest quality and with version 4.0
we take another big leap forward in terms of speed and usability”, says Johan
Löf, CEO of RaySearch.

About RayStation®
RayStation® integrates all RaySearch’s advanced treatment planning solutions
into a flexible treatment planning system. It combines unique features such as
multi-criteria optimization tools with full support for 4D adaptive radiation
therapy. It also includes functionality such as RaySearch’s market-leading
algorithms for IMRT and VMAT optimization and highly accurate dose engines for
photon, electron and proton therapy. The system is built on the latest software
architecture and has a graphical user interface offering state-of-the-art
usability.

About RaySearch
RaySearch Laboratories is a medical technology company that develops advanced
software solutions for improved radiation therapy of cancer. RaySearch’s
products are mainly sold through license agreements with leading partners such
as Philips, Nucletron, IBA, Varian, Accuray and Brainlab. To date, 15 products
have been launched through partners and RaySearch’s software is used at over
2,000 clinics in more than 30 countries. In addition, RaySearch offers the
proprietary treatment planning system RayStation® directly to clinics. RaySearch
was founded in 2000 as a spin-off from Karolinska Institutet in Stockholm and
the company is listed in the Small Cap segment on NASDAQ OMX Stockholm.

For more information about RaySearch, visit www.raysearchlabs.com

For further information, please contact:
Johan Löf, President and CEO, RaySearch Laboratories AB
Telephone: +46 (0)8-545 061 30
johan.lof@raysearchlabs.com