I.e. the CAG was carried out via the right radial artery as the LIMA (more usually LITA) had not been specified (to be used):

e.g.

"Typically, the left internal thoracic artery (LITA) (previously referred to as left internal mammary artery or LIMA) and right internal thoracic artery are used for bypass. If additional bypasses are required the great saphenous vein from the leg or the radial artery from the forearm are frequently used."

ref. http://en.wikipedia.org/wiki/Heart_bypass