How do you think radiologists get paid? For the practice paying you, you need to do enough work (i.e., RVU production) to justify your cost.
Let's say you are going to get $2500 for the "day". You need to do enough work to justify that.
Currently, Medicare pays about $36 for each professional RVU. This covers the labor cost.
$2500/$36 = 69 RVU
69 RVU is a doable day of work. What does this translate to?
-CXRs are worth 0.22 RVU for the professional component. So this is about 313 CXRs. If you are working 10 hrs for the day without breaks, it's 31 CXR/hour, or 1 every 2 minutes...for 10 hours straight. Doable.
-CT abd/pelvis is 1.82 RVU. So this is about 38 abd/pelvis CTs in the 10 hour day, or 3.8/hour. Doable.
The thing is, the place paying would only be making money on the technical stuff--basically giving you everything for the professional stuff, and you don't have to bill, collect, etc.
If practices found "cheap labor" (locums willing to "take less"), then no practice would be hiring anyone other than locums.