@loplady TBS is software that can be added to the leading DXA devices. All these sites have to do is pay for the software. But the financial incentive is not there unfortunately.
My previous doctor had a DXA machine with TBS in his office. If I wanted a scan less than a year from my previous scan which I did a couple of times, he charged $75 per scan site. So on those two occasions I just had lumbar spine and one hip done for $150. I believe TBS was thrown in.