![]() In general, there was no significant difference among the three scan types with respect to short-term precision of BMD and only slight differences in the precision of BMC. ![]() Precision values (% coefficient of variation, %CV) were calculated for whole-body and regional bone mineral content (BMC), bone mineral density (BMD), fat mass, lean mass, %fat and total mass. The following combinations of scan modes and analysis software were used: pencil-beam scans analyzed with Hologic's standard whole-body software (PB scans) the same pencil-beam analyzed with Hologic's newer "enhanced" software (EPB scans) and array scans analyzed with the enhanced software (EA scans). A group of 21 normal, healthy volunteers (11 male and 10 female) were scanned six times, receiving one pencil-beam and one array whole-body scan on three occasions approximately 1 week apart. This study reports on the short-term in vivo precision and absolute measurements of three combinations of whole-body scan modes and analysis software using a Hologic QDR 2000 dual-energy X-ray densitometer. Hologic QDR 2000 whole-body scans: a comparison of three combinations of scan modes and analysis software
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