Welcome to the Body Composition Analysis Center and DXA Lab at Tufts University

thigh ct scanThe Body Composition Analysis Center (BCAC) of the Tufts University Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy offers an unmatched combination of scientific expertise and cutting-edge computer technology for the analysis of bone density and body composition. Associated with the world-class research laboratories for the study of aging, nutrition, and physiology at Tufts, the Body Composition Analysis Center is a leading referral center in meeting the complex data analysis needs of other laboratories, health-care facilities, and research organizations.

The expertise of Tufts researchers, who are recognized as national leaders in their field, make the Body Composition Analysis Center an unparalleled resource for:

  • Analysis of CT scans of visceral and subcutaneous fat for multi-center trials; analysis of CT scans for muscle & fat regional cross-sectional areas.
  • Analysis of DXA scans for soft tissue as well as bone components.
  • Development and application of bioelectrical impedance equations for population studies.

Dual-energy x-ray absorptiometry (DXA) is a useful measurement primarily used to assess bone mineral density, total body composition, and body fat content with a high degree of accuracy. DXA bone density testing has proven to be the most accurate method available in the diagnosis of osteoporosis and is also considered an accurate estimator of fracture risk. DXA is a widely used and effective method for research, as it is quick, convenient, and non-invasive. Moreover, radiation exposure to patient subjects is extremely minimal- less than one-tenth the dose of a standard chest x-ray.

The Body Composition Analysis DXA Laboratory at Tufts University is equipped with a Hologic Discovery A scanner, which performs total body, lumbar spine, femur, and forearm scans. The lab maintained and operated by a fully trained and certified scan technologist.

Please note that DXA scans are conducted exclusively on applicable research participants. For a list of current Tufts studies involving DXA, please visit the HNRCA volunteer website or contact volunteer services at 1-800-738-7555

Roger A. Fielding, PhD
Director, BCAC