telemedicine. Various scans and X-rays transmitted from site to a doctor by satellite for a remote diagnosis.

Telemedicine is more generic, Stales. Refers to general medical consultations irrespective of specialisations, primarily developed for remote area medical accesss and second opinions. Teleradiology would refer specifically to the transmission of radiologic data such as X-rays, CT and MR scans and the like, for the same purposes.
Incidentally, my introduction to this board was with a rant on the rapid commercialisation of these fields.