1) I personally like the DEXA machine, as it is accurate, although it is really expensive to have a scan. It scans you from the head to tail, meaning nothing is missed out on. This ensures accurate diagnosis of any medical conditions, so that proper treatment can be applied. It has low radiation levels. One beam is high energy while the other is low energy. The amount of X-rays passing through the bone is measured for each beam. Due to difference between the two beams, the bone density can be measured.
Poon Wai Kit (23)