The relationship between dual energy X-ray absorptiometry (DXA) and DXA with laser (DXL) measurements in children

Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry
Ann-Charlott SöderpalmD Swolin-Eide

Abstract

The present study was designed to examine the relationship between bone mineral density (BMD) measurements performed using conventional dual energy X-ray absorptiometry (DXA) in total body (TB), spine, and hip and the more recent technique of DXA with laser (DXL) in the calcaneus in a young population and to explore the diagnostic capacity of the heel DXL. One hundred and twelve persons, 2.2-20.6yr of age, were studied using the 2 techniques. Significant correlations were observed between the heel BMD and BMD values in TB (r=0.73, p<0.001), TB(head excluded(HE)) (r=0.83, p<0.001), spine (r=0.72, p<0.001), and hip (r=0.90, p<0.001). The relationships between DXA and DXL measurements with 95% tolerance intervals are presented. Using heel DXL measurements to predict the lowest DXA quartiles at all the other measured sites revealed sensitivity levels of 0.9 (TB, spine, hip) and 1.0 (TB(HE)) and specificity levels of 0.86 (TB), 0.94 (TB(HE)), 0.92 (spine), and 0.95 (hip). We conclude that BMD values obtained with DXA and DXL correlate well and that the DXA and DXL techniques effectively identify the same individuals with low BMD. The DXL, which is portable, easy to use and gives a low radiation dose, can be useful for assessing bone...Continue Reading

References

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Citations

Jan 25, 2013·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·C MuschitzH Resch
Dec 12, 2012·Journal of Bone and Mineral Metabolism·Diana Swolin-EidePer Magnusson
Jun 12, 2014·Revista da Associação Médica Brasileira·Roberta VanacorTânia W Furlanetto
Apr 23, 2009·The Journal of International Medical Research·A E YumruY T Ayanoglu
Jul 12, 2018·Pediatric Transplantation·Diana Swolin-EidePer Magnusson
Apr 3, 2012·Pediatric Physical Therapy : the Official Publication of the Section on Pediatrics of the American Physical Therapy Association·Eva SandstedtEva Beckung

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