That's true, but I don't see that as necessarily decisive. If 1 doctor and 1 engineer can achieve the bandwidth of 10 (more?) doctors on some specific scan, we're still talking about less intellectual capital and less training requirements overall.

Also I don't think we're talking about special hardware here. Couldn't we just have a software package produced by someone (university, company in a wealthier country) that is used by docs everywhere? Could be done without the need of a dedicated local engineer? Perhaps the WHO could approve certain software packages for universal use in very specific cases.