X-ray Absorptiometry (DEXA) examinations estimate
the amount of bone mineral content in specific
areas of your body. DEXA exams measure the amount of
x-rays that are absorbed by the bones in your body.
Two x-ray energies allow the radiologist to tell
between bone and soft tissue, giving a very accurate
estimation of bone density. Often confused with a nuclear
medicine bone scan, a bone density scan is faster and
does not require a radionuclide injection.
What Should I Expect?
You will be asked to lie very still on the scan
table and you will be able to breathe normally
procedure. A scanner arm will pass over the area
of interest, for example, your lower spine or hip.
A dual energy beam
of x-ray passes through your body and is measured
by a detector in the scanner arm. An exam usually
of a spine and a single scan of the hip. On average,
it will take about 20 minutes for the entire exam.
Should I Prepare?
You will need to avoid taking any form of calcium
supplementation for two hours prior to your exam.
Otherwise you can perform
normal daily activities and eat normally on the
day of the exam. Wear comfortable clothing on the
that is free of any type of metal such as zippers
Do I Get the Results?
After your study is over, a radiologist will review
and evaluate your exam. Both a preliminary and
will be sent to your doctor, who can then discuss
the results with you in detail. Often, for more
immediate situations, our radiologists will speak
your referring physician to discuss the result
of the imaging procedure.
At any time before or after your procedure, our
radiologists are happy to provide one-on-one