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ARS Home » Northeast Area » Boston, Massachusetts » Jean Mayer Human Nutrition Research Center On Aging » Research » Publications at this Location » Publication #153431
Title: COMPARISON OF WHOLE AND REGIONAL BODY COMPOSITION MEASURED BY HOLOGIC QDR-200 AND LUNAR DPX-L DUAL-ENERGY X-RAY ABSORPTIOMETRY (DXA)

Author
item BAIROS, LYNN - HNRCA
item DAWSON-HUGHES, BESS - HNRCA
item ROUBENOFF, RONENN - HNRCA

Submitted to: International Journal of Body Composition Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/1/2002
Publication Date: 1/1/2003
Citation: BAIROS, L.M., DAWSON-HUGHES, B., ROUBENOFF, R. COMPARISON OF WHOLE AND REGIONAL BODY COMPOSITION MEASURED BY HOLOGIC QDR-200 AND LUNAR DPX-L DUAL-ENERGY X-RAY ABSORPTIOMETRY (DXA). International Journal of Body Composition Research. 2003;1:1-6.

Interpretive Summary: Dual energy x-ray absorptiometry (DXA) scanners have become the standard instruments for measuring whole and regional body composition. In multicenter clinical trials, both Lunar and Hologic instruments are often intermixed. However, little is known about the differences between these instruments and the potential errors that such practice may cause. Therefore, we assessed the degree of agreement between Hologic QDR-2000 (fan-beam) and Lunar DPX-L (pencil-beam) absorptiometers. Seventy nine healthy volunteers were recruited, 41 women and 38 men, and underwent two DXA scans on the same day to compare lean, fat, and bone mineral density in whole body, appendages, and trunk. There were significant differences between the scanners for women and men in whole body lean, fat, bone, and percent body fat; leg lean, fat, and bone; and arm lean and fat (all p

Technical Abstract: Dual energy x-ray absorptiometry (DXA) scanners have become the standard instruments for measuring whole and regional body composition. In multicenter clinical trials, both Lunar and Hologic instruments are often intermixed. However, little is known about the differences between these instruments and the potential errors that such practice may cause. Therefore, we assessed the degree of agreement between Hologic QDR-2000 (fan-beam) and Lunar DPX-L (pencil-beam) absorptiometers. Seventy nine healthy volunteers were recruited, 41 women and 38 men, and underwent two DXA scans on the same day to compare lean, fat, and bone mineral density in whole body, appendages, and trunk. There were significant differences between the scanners for women and men in whole body lean, fat, bone, and percent body fat; leg lean, fat, and bone; and arm lean and fat (all p