Body Composition (DEXA)
DEXA Body Composition Analysis precisely measures the amount of fat, lean muscle and bone in your body, giving you and your health care professional, or trainer, a more complete picture of your health. It’s fast, painless, noninvasive and safe.
How does DEXA work?
DEXA is an advanced, X-ray-based imaging exam that uses a very low radiation dose – so low that the technologist stays at the console right next to you during the exam. The results are highly accurate and presented in both graphic and numeric formats. We also compare your result to a very large database of individuals so you can see how your results compare to people of the same age and sex.
The importance of knowing your Fat Mass Index (FMI)
Knowing your weight and body mass index (BMI) doesn’t necessarily tell the whole story about your proportion of body fat and your risks for problems like heart disease, stroke and Type 2 diabetes. A DEXA Body Composition Analysis also estimates the amount of “visceral fat,” or fat inside your abdominal cavity, which is a factor for disease risk. Unlike BMI, which uses your total weight (fat, muscle and bone mass combined), Princeton Radiology goes further to calculate a Fat Mass Index (FMI), a more meaningful index that takes into account your body fat percentage in relation to your height. DEXA’s ability to measure the body’s bone content also makes the analysis more precise.
Who Needs DEXA Body Composition Analysis?
Physicians and clinicians use DEXA Body Composition Analysis to help assess and manage obesity. It’s also helpful in assessing age-related muscle loss, neuromuscular changes, and growth disorders. Knowing your FMI can help your clinician plan and monitor interventions for excessive body fat, and track the progress of physical training regimens. DEXA Body Composition Analysis may also benefit people who are:
- Candidates for bariatric surgery or receiving follow-up care after a procedure
- Suffering from sarcopenia (degenerative muscle loss)
- Currently involved in a weight management program
- Fitness enthusiasts
What will the exam be like?
The DEXA scan is fast and easy. The exam takes only 3 to 5 minutes, and in most cases, no special preparation is necessary.
You can obtain this highly accurate information about your body composition from our board-certified radiologists for a surprisingly low fee. Currently, this procedure is not covered by insurance plans.