A reliable method for measuring proximal tibia and distal femur bone mineral density using dual-energy X-ray absorptiometry

A.J.T. Bakkum; T.W.J. Janssen; M.P. Rolf; J.C. Roos; J. Burcksen; D.L. Knol; S. de Groot

doi:10.1016/j.medengphy.2013.08.010

A reliable method for measuring proximal tibia and distal femur bone mineral density using dual-energy X-ray absorptiometry

A.J.T. Bakkum, T.W.J. Janssen, M.P. Rolf, J.C. Roos, J. Burcksen, D.L. Knol, S. de Groot

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Purpose: To assess the intra- and inter-rater reliability of a standardized protocol for measuring proximal tibia and distal femur bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA). Methods: Ten able-bodied individuals (7 males) participated in this study. During one measurement session, the knee of each participant was scanned twice by rater 1 using DXA. Both scans were analyzed twice by rater 1 as well as once by a second rater. Intraclass correlation coefficients (ICCs), standard error of measurements (SEMs) and smallest detectable differences (SDDs) were calculated for the outcome measures proximal tibia and distal femur BMD. A decision study was performed to determine the effect of study protocol adjustments (i.e. increasing the number of scan repetitions, or scan analyses by the same rater) on SEM and SDD values. Results: High intra- and inter-rater ICCs (0.97-0.98) were found for both proximal tibia and distal femur BMD. Low SEMs (0.017-0.028g/cm

Original language	English
Pages (from-to)	387-390
Journal	Medical Engineering and Physics
Volume	36
Issue number	3
DOIs	https://doi.org/10.1016/j.medengphy.2013.08.010
Publication status	Published - 2014

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10.1016/j.medengphy.2013.08.010

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title = "A reliable method for measuring proximal tibia and distal femur bone mineral density using dual-energy X-ray absorptiometry",

abstract = "Purpose: To assess the intra- and inter-rater reliability of a standardized protocol for measuring proximal tibia and distal femur bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA). Methods: Ten able-bodied individuals (7 males) participated in this study. During one measurement session, the knee of each participant was scanned twice by rater 1 using DXA. Both scans were analyzed twice by rater 1 as well as once by a second rater. Intraclass correlation coefficients (ICCs), standard error of measurements (SEMs) and smallest detectable differences (SDDs) were calculated for the outcome measures proximal tibia and distal femur BMD. A decision study was performed to determine the effect of study protocol adjustments (i.e. increasing the number of scan repetitions, or scan analyses by the same rater) on SEM and SDD values. Results: High intra- and inter-rater ICCs (0.97-0.98) were found for both proximal tibia and distal femur BMD. Low SEMs (0.017-0.028g/cm",

author = "A.J.T. Bakkum and T.W.J. Janssen and M.P. Rolf and J.C. Roos and J. Burcksen and D.L. Knol and {de Groot}, S.",

year = "2014",

doi = "10.1016/j.medengphy.2013.08.010",

language = "English",

volume = "36",

pages = "387--390",

journal = "Medical Engineering and Physics",

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T1 - A reliable method for measuring proximal tibia and distal femur bone mineral density using dual-energy X-ray absorptiometry

AU - Bakkum, A.J.T.

AU - Janssen, T.W.J.

AU - Rolf, M.P.

AU - Roos, J.C.

AU - Burcksen, J.

AU - Knol, D.L.

AU - de Groot, S.

PY - 2014

Y1 - 2014

N2 - Purpose: To assess the intra- and inter-rater reliability of a standardized protocol for measuring proximal tibia and distal femur bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA). Methods: Ten able-bodied individuals (7 males) participated in this study. During one measurement session, the knee of each participant was scanned twice by rater 1 using DXA. Both scans were analyzed twice by rater 1 as well as once by a second rater. Intraclass correlation coefficients (ICCs), standard error of measurements (SEMs) and smallest detectable differences (SDDs) were calculated for the outcome measures proximal tibia and distal femur BMD. A decision study was performed to determine the effect of study protocol adjustments (i.e. increasing the number of scan repetitions, or scan analyses by the same rater) on SEM and SDD values. Results: High intra- and inter-rater ICCs (0.97-0.98) were found for both proximal tibia and distal femur BMD. Low SEMs (0.017-0.028g/cm

AB - Purpose: To assess the intra- and inter-rater reliability of a standardized protocol for measuring proximal tibia and distal femur bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA). Methods: Ten able-bodied individuals (7 males) participated in this study. During one measurement session, the knee of each participant was scanned twice by rater 1 using DXA. Both scans were analyzed twice by rater 1 as well as once by a second rater. Intraclass correlation coefficients (ICCs), standard error of measurements (SEMs) and smallest detectable differences (SDDs) were calculated for the outcome measures proximal tibia and distal femur BMD. A decision study was performed to determine the effect of study protocol adjustments (i.e. increasing the number of scan repetitions, or scan analyses by the same rater) on SEM and SDD values. Results: High intra- and inter-rater ICCs (0.97-0.98) were found for both proximal tibia and distal femur BMD. Low SEMs (0.017-0.028g/cm

U2 - 10.1016/j.medengphy.2013.08.010

DO - 10.1016/j.medengphy.2013.08.010

M3 - Article

SN - 1350-4533

VL - 36

SP - 387

EP - 390

JO - Medical Engineering and Physics

JF - Medical Engineering and Physics

IS - 3

ER -

A reliable method for measuring proximal tibia and distal femur bone mineral density using dual-energy X-ray absorptiometry

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