Founded in 1941, the American Scientific Affiliation (ASA) is a national
organization of Christians in science. In October 2002, RITA again became the first
company to receive specific FDA clearance , this time, for the
palliation of pain associated with metastatic lesions involving bone.

scholarly archivist

, The American Scientific
Affiliation announces the appointment of Dr." The plenary sessions will
include "Engineering for the Developing World," by Dr.

Riccardo Lencioni and colleagues performed radiofrequency
ablation using RITA Medical Systems radiofrequency electrodes on 187
early-stage liver cancer patients with cirrhosis who were not
candidates for surgery. People with cirrhosis or Hepatitis B or C
virus infections are at increased risk of developing liver cancer.

quarterly etcetera

in solid-state physics at the University of Illinois at Urbana-
Champaign. The Company's oncology product lines
include implantable ports, some of which feature its proprietary
Vortex(R) technology; tunneled central venous catheters; safety
infusion sets and peripherally inserted central catheters used
primarily in cancer treatment protocols.

kumar archivist

(Nasdaq:RITA) today announced that the
Radiological Society of America (RSNA) has issued a press release
highlighting a clinical study of radiofrequency ablation (RFA)
treatment for liver cancer in the March 2005 issue of the
peer-reviewed journal Radiology.

scholarly suzanne

rivard paola

Donald W. The press release is entitled,
"Radiologists Offer Non-Surgical Treatment for Early-Stage Liver
Cancer.

RITA Medical Systems develops, manufactures and markets innovative
products for cancer patients including radiofrequency ablation (RFA)
systems for treating cancerous tumors as well as percutaneous vascular
and spinal access systems.

rivard archivist

ASA will hold its 2005 Annual Meeting on the campus of Messiah College,
Grantham, PA, August 5-8.

rivard vol

The article, "Early-Stage Hepatocellular Carcinoma in
Patients with Cirrhosis: Long-term Results of Percutaneous
Image-guided Radiofrequency Ablation," reports that RFA provided
long-term (5 year data) survival rates for liver cancer patients who
are not surgical candidates that are comparable to results obtained
with surgical resection in this type of patient.com

The statements in this news release related to the results of
studies and the use of the Company's technology are forward-looking
statements involving risks and uncertainties that could cause actual
results to differ materially from those in such forward-looking
statements.

kumar talbot

paola kuldeep

Isaac Named Executive Director of the American Scientific Affiliation

asa3.org/pr/target.org/.
Dr.
97% percent of the patients survived one year, 71% survived three
years, and 48% survived five years, which is comparable to results
obtained with surgical resection in this type of patient.ritamedical.

misq scholarly

IPSWICH, Mass. (Randy) Isaac as its
Executive Director.

comment quarterly

Randall D.cfm?ID=238 and the article
abstract is available on the Radiology website,
http: //radiology.

managerial prepublication

Its web site at http://www.

MORE INFORMATION

The peer reviewed publication (available February 16, 2005)
reports findings indicating that RFA offers an effective first-line
treatment for some liver cancer patients who were excluded from
surgery.

scholarly prepublication

rsna.

rivard reviewing

Isaac was VP of Development Alliances for IBM Systems
Technology Group in East Fishkill, NY. The primary focus will be "Alternate Energy
Resources, Conservation and the Environment.

WHAT: RSNA press release highlights RFA liver cancer study in
March 2005 journal Radiology. The results
also indicate that radiofrequency ablation patient survival is
dependent on the type of cirrhosis and the number of tumors present.

kumar kuldeep

ASA provides a forum for dialog across a spectrum of perspectives that adhere
to orthodox Christian creeds and to integrity in science.

About RITA Medical Systems, Inc .

paola suzanne

S. The proprietary RITA system
uses radiofrequency energy to heat tissue to a high enough temperature
to ablate it or cause cell death. In March 2000, RITA became the first
RFA Company to receive specific FDA clearance for unresectable liver
lesions in addition to its previous general FDA clearance for the
ablation of soft tissue.

talbot kuldeep

Its nearly 2,000 members span the
professional spectrum of science professors, researchers, and engineers as
well as theologians and pastors interested in science.

Bernard Amadei, Founder
and Director of Engineers without Borders.
Fewer than 5 percent of liver -cancer patients with cirrhosis qualify
for surgical liver resection, and the liver donor shortage limits
transplant availability.

announcing roadmap

managerial rationality

Isaac is retiring from IBM after 28 years of service, including 7 years as
Vice President of Systems, Science, and Technology at the IBM Thomas J.

kumar barki

Watson
Research Center. in physics from Wheaton College (IL) and
a Ph.

managerial talbot

The organization
publishes the quarterly peer-reviewed journal Perspectives on Science and
Christian Faith and the ASA Newsletter.D.

Radiology Society of North America Issues Press Release Announcing Publication of Study of Treatment for Liver Cancer Using RITA Medical Systems Radiofrequency

subscribing etcetera

org is
a repository for research in matters relating to science and Christian faith.
The RITA Medical Systems website is at www.

This category is a directory of sites that are
related to MISQ
Central, 'an electronic production of the
peer reviewed scholarly journal, MIS Quarterly
(MISQ).

'.

subscribing archivist

He succeeds retiring executive director
Dr.

Business Editors/Health/Medical Writers

MOUNTAIN VIEW, Calif.----

March Issue of Radiology Publishes Article: "Early-Stage
Hepatocellular Carcinoma in Patients with Cirrhosis: Long-term Results
of Percutaneous Image-guided Radiofrequency Ablation"

RITA Medical Systems, Inc.rsnajnls.

keyword announcing

Munro who held the position for ten years. He received his B."

WHEN: February 16, 2005

WHERE: The RSNA press release is available at
http://www2. Information regarding these risks is included in the
Company's filings with the Securities and Exchange Commission .