EXHIBIT 32.1


CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002,
18 U.S.C. SECTION 1350

      In connection with this Annual Report on Form 10-K of AMICAS, Inc. (the
"Company") for the year ended December 31, 2005 (the "Report"), the
undersigned, Stephen N. Kahane, M.D., M.S., Chief Executive Officer of the
Company, and Joseph D. Hill, Chief Financial Officer of the Company, each
hereby certifies, pursuant to 18 U.S.C. Section 1350, that to his knowledge:

      (1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

      (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.

                          /s/ Stephen N. Kahane, M.D., M.S.       March 29, 2006
                          Stephen N. Kahane, M.D., M.S.                     Date
                          Chief Executive Officer


                          /s/ Joseph D. Hill                      March 29, 2006
                          Joseph D. Hill                                    Date
                          Chief Financial Officer