H.R.4879 - Federal Government - To amend title XVIII of the Social Security Act to include screening computed tomography colonography as a colorectal screening test for purposes of coverage under the Medicare Program, and for other purposes.

Virtual Screening for Cancer Act of 2007 - Amends title XVIII (Medicare) of the Social Security Act to: (1) provide Medicare coverage for screening computed tomography as a colorectal screening test; and (2) exclude screening computed tomography colonography from the meaning of "imaging services" for which there is a special rule regarding outpatient services department (OPD) fee schedule payments.