I had the dexa and then the rems scan. I prefer the rems scan since there is no radiation and because the machines do not need to be recalibrated like the dexa scans ( which sadly they don't do much) and there is no potential error in the area of the person giving the scan....rems is far more accurate. Also if you do a deep dive you will find that the major share holders of dexa are the SAME pharmaceutical companies that make the meds for osteoporosis. Hmmmmmm now we know there could be no influenece there on these scans making thing look worse I am sure!!!!!! Do you also know when they do the bone scans they are compared to the bones of a 30 year old!!! Really? Who in their 70's has bones like a 30 year old. I am a big believer in strength training, supplements, red onions, and prunes to help bone density and NOT a fan of the meds unless the numbers are through the roof. Make sure if you get a DExa you only get the one with TBS (a fragility score) which is very important. You doctor won't even know what that is unless they really know their stuff. AND there are very few places that offer it but it is covered by insurance and no additional radiation.