Italian to English Medical Medical (general) Angiography of the abdominal aorta

Angiography of the abdominal aorta

Dear colleagues,

What could *Tc* mean in the following context:

-Angio *Tc* aorta addominale, vasi iliaci e degli arti inferiori,
nelle more si aggiunge :
Dromos 500 cpr.
1 cpr. 2 volte al di

Any help will be much appreciated, thank you!