AMERICAN SHARED HOSPITAL SERVICES REPORTS 2008 FIRST QUARTER RESULTS San Francisco, CA

AMERICAN SHARED HOSPITAL SERVICES

REPORTS 2008 FIRST QUARTER RESULTS

San Francisco, CA, May 1, 2008 AMERICAN SHARED HOSPITAL SERVICES (AMEX:AMS), a leading provider

of turnkey technology solutions for advanced radiosurgical and radiation therapy services, today

announced financial results for the first quarter of 2008.

First Quarter Results

For the three months ended March 31, 2008, revenue was $4,725,000, essentially unchanged when

compared to revenue of $4,749,000 for the first quarter of 2007. Net income for the first quarter

of 2008 was $156,000, or $0.03 per diluted share. This compares to net income for the first

quarter of 2007 of $225,000, or $0.04 per diluted share.

We sustained our revenue and profitability in this year s first quarter even as we continued the

significant transition in our portfolio of radiosurgical and radiation therapy assets that is the

planned consequence of our long-term growth strategy. As anticipated, we had 19 Gamma Knife

systems in operation during the first quarter, two fewer than a year earlier, but this was offset

by the contribution of the IGRT and related equipment and services AMS began supplying a customer

in September 2007, recent upgrades to several existing Gamma Knife units, and the impact of the

installation of two advanced Leksell Gamma Knife PerfexionTM systems that began treating

patients in last year s fourth quarter and this year s first quarter, respectively. Our

performance for this year s first quarter is especially noteworthy in view of the significant

downtime associated with the Gamma Knife upgrades and installation of the Perfexion systems, and

the increased depreciation and interest expense associated with these investments.

With one additional Leksell Gamma Knife Perfexion system upgrade scheduled to come on line in the

second quarter, one new Perfexion customer scheduled to come on line in the second half of 2008,

and the progress we are making in the development of additional contracts for radiosurgery,

radiation therapy and PBRT systems, we are optimistic about our performance in the months ahead,

said Chairman and Chief Executive Officer Ernest A. Bates, M.D.

Dr. Bates added, Next-generation devices for radiation oncology delivery, including proton beam

radiation therapy (PBRT) systems, Leksell Gamma Knife Perfexion systems, IGRT systems and others,

have the potential to dramatically improve patient outcomes in the treatment of many formerly

intractable cancers and other life-threatening conditions. By making these new systems available

and affordable to clinical partners who might otherwise be unable to offer these advanced treatment

modalities to their patients, our creative financing solutions position AMS to be a major

participant in this long-term growth opportunity.

Balance Sheet Highlights

At March 31, 2008, AMS reported cash, cash equivalents, and short and long-term securities of

$9,462,000. March 31, 2007, AMS reported cash, cash equivalents, and short and long-term

securities of $8,916,000. Shareholders equity at March 31, 2008 was $19,730,000, or $3.93 per

outstanding share. This compares to shareholders equity at March 31, 2007 of $19,010,000, or

$3.78 per outstanding share.

Earnings Conference Call

American Shared has scheduled a conference call at 11:00 a.m. PT (2:00 p.m. ET) today. To

participate in the live call, dial (800) 580-9496 at least 5 minutes prior to the scheduled start

time. A simultaneous WebCast of the call may be accessed through the Company s website,

www.ashs.com, or through CCBN, www.earnings.com (individual investors) or

www.streetevents.com (institutional investors). A replay will be available for 30 days at

these same internet addresses, or by calling (888) 843-8996, pass code 21546804.

American Shared Hospital Services provides turnkey technology solutions for advanced radiosurgical

and radiation therapy services. AMS is the world leader in providing Gamma Knife radiosurgery

services, a non-invasive treatment for malignant and benign brain tumors, vascular malformations

and trigeminal neuralgia (facial pain). The Company also offers the latest IGRT and IMRT systems,

as well as its proprietary Operating Room for the 21st Century concept. Through its

preferred stock investment in Still River Systems, AMS also plans to complement these services with

the Monarch 250TM proton beam radiation therapy (PBRT) system, which has not yet been

approved by the FDA.

Safe Harbor Statement

This press release may be deemed to contain certain forward-looking statements with respect to the

financial condition, results of operations and future plans of American Shared Hospital Services,

which involve risks and uncertainties including, but not limited to, the risks of the Gamma Knife

and radiation therapy businesses, the risks of developing The Operating Room for the 21st Century

program, and the risks of investing in a development-stage company, Still River Systems, Inc.,

without a proven product. Further information on potential factors that could affect the financial

condition, results of operations and future plans of American Shared Hospital Services is included

in the filings of the Company with the Securities and Exchange Commission, including the Company s

Annual Report on Form 10-K for the year ended December 31, 2007 and the definitive Proxy Statement

for the Annual Meeting of Shareholders to be held on June 20, 2008.

AMERICAN SHARED HOSPITAL SERVICES

Selected Financial Data