The heady days of computed tomography (CT) — when 64-slice scanners drove sales to an all-time high — seems like ancient history. Hard to believe it was less than 10 years ago. Since then demand has fallen. The installed base, predictably, has grown old.
It used to be that once every four to five years, providers would turn out their old CTs in favor of new ones. Lately they have been holding on. The average lifespan of individual systems has grown, in some cases to eight, nine, even 10 years. And it could get longer.