<ARTICLE> 5 <CIK> 0001013606 <NAME> RADIANCE MEDICAL SYSTEMS INC. <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> SEP-30-2000 <EXCHANGE-RATE> 1 <CASH> 1,361 <SECURITIES> 17,273 <RECEIVABLES> 770 <ALLOWANCES> 126 <INVENTORY> 1,075 <CURRENT-ASSETS> 22,243 <PP&E> 2,498 <DEPRECIATION> 1,697 <TOTAL-ASSETS> 26,601 <CURRENT-LIABILITIES> 3,256 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 12 <OTHER-SE> 22,750 <TOTAL-LIABILITY-AND-EQUITY> 26,601 <SALES> 1,730 <TOTAL-REVENUES> 6,780 <CGS> 1,377 <TOTAL-COSTS> 1,377 <OTHER-EXPENSES> 11,481 <LOSS-PROVISION> 25 <INTEREST-EXPENSE> (20) <INCOME-PRETAX> (4,544) <INCOME-TAX> 0 <INCOME-CONTINUING> (4,544) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (4,544) <EPS-BASIC> (0.40) <EPS-DILUTED> (0.40)