Cross-Calibration of GE Healthcare Lunar Prodigy and iDXA Dual-Energy X-Ray Densitometers for Bone Mineral Measurements
Joint Authors
Kroger, Heikki
Honkanen, Risto
Tuppurainen, Marjo T.
Saarelainen, J.
Hakulinen, M.
Rikkonen, T.
Koivumaa-Honkanen, H.
Hujo, M.
Jurvelin, Jukka S.
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In long-term prospective studies, dual-energy X-ray absorptiometry (DXA) devices need to be inevitably changed.
It is essential to assess whether systematic differences will exist between measurements with the new and old device.
A group of female volunteers (21–72 years) underwent anteroposterior lumbar spine L2–L4 ( n = 72 ), proximal femur ( n = 72 ), and total body ( n = 62 ) measurements with the Prodigy and the iDXA scanners at the same visit.
The bone mineral density (BMD) measurements with these two scanners showed a high linear association at all tested sites ( r = 0.962 – 0.995 ; p < 0.0001 ).
The average iDXA BMD values were 1.5%, 0.5%, and 0.9% higher than those of Prodigy for lumbar spine (L2–L4) ( p < 0.0001 ), femoral neck ( p = 0.048 ), and total hip ( p < 0.0001 ), respectively.
Total body BMD values measured with the iDXA were −1.3% lower ( p < 0.0001 ) than those measured with the Prodigy.
For total body, lumbar spine, and femoral neck, the BMD differences as measured with these two devices were independent of subject height and weight.
Linear correction equations were developed to ensure comparability of BMD measurements obtained with both DXA scanners.
Importantly, use of equations from previous studies would have increased the discrepancy between these particular DXA scanners, especially at hip and at spine.
American Psychological Association (APA)
Saarelainen, J.& Hakulinen, M.& Rikkonen, T.& Kroger, Heikki& Tuppurainen, Marjo T.& Koivumaa-Honkanen, H.…[et al.]. 2016. Cross-Calibration of GE Healthcare Lunar Prodigy and iDXA Dual-Energy X-Ray Densitometers for Bone Mineral Measurements. Journal of Osteoporosis،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1110157
Modern Language Association (MLA)
Saarelainen, J.…[et al.]. Cross-Calibration of GE Healthcare Lunar Prodigy and iDXA Dual-Energy X-Ray Densitometers for Bone Mineral Measurements. Journal of Osteoporosis No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1110157
American Medical Association (AMA)
Saarelainen, J.& Hakulinen, M.& Rikkonen, T.& Kroger, Heikki& Tuppurainen, Marjo T.& Koivumaa-Honkanen, H.…[et al.]. Cross-Calibration of GE Healthcare Lunar Prodigy and iDXA Dual-Energy X-Ray Densitometers for Bone Mineral Measurements. Journal of Osteoporosis. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1110157
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110157