This is not the first time Dish customers have lost access to channels because of stalled negotiations. In October, channels such as CNN, Cartoon Network and Turner Classic Movies were blacked out for a month as Dish negotiated with Turner Broadcasting.his is not the first time Dish customers have lost access to channels because of stalled negotiations. In October, channels such as CNN, Cartoon Network and Turner Classic Movies were blacked out for a month as Dish negotiated with Turner Broadcasting.
A DEXA scan is a special type of X-ray that measures bone mineral density (BMD). DEXA stands for dual energy X-ray absorptiometry.This type of scan is also often known as DXA, or dual X-ray absorptiometry.It's also sometimes referred to as a bone density scan or a bone densitometry scan. DEXA scans are often used to diagnose osteoporosis (when the bones become weak and fragile, and are more likely to break). DEXA scan is a special type of X-ray that measures bone mineral density (BMD). DEXA stands for dual energy X-ray absorptiometry.
Bone Density. Guide. A bone density test measures the density of minerals (such as calcium) in your bones using a special X-ray. This information is used to estimate the strength of your bones. We all lose some bone mass as we age. DXA can measure as little as 2% of bone loss per year. 2  It is fast and uses very low doses of radiation. 3  Single-energy X-ray absorptiometry (SXA) may be used to measure heel and forearm bone density, but SXA is not used as often as DXA. 4  Peripheral dual-energy X-ray absorptiometry (P-DXA). 5  P-DXA is a type of DXA test.