Need for Cross-calibration of Body Composition Even with the Same Model of Dual-energy X-ray Absorptiometry
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objectives: The purpose of this study was to compare total body fat mass, lean mass, and bone mineral content in addition to regional fat measured by the same model of equipment installed in different places, and to determine the extent of agreement. Materials and Methods: Twenty seven healthy volunteers aged 20 years and over received two consecutive total body scans using the same dual-energy X-ray absorptiometry model of installed in different places. All scans were conducted on the same day. Results: Relatively good agreements were shown in fat mass, the percent of tissue fat, android fat, and gynoid fat. However, there were two outliers each in lean mass and bone mineral content based on the limits of agreement. Conclusions: These results indicate the need for cross-calibration even with the same model of equipment.
Abstract
Objectives: The purpose of this study was to compare total body fat mass, lean mass, and bone mineral content in addition to regional fat measured by the same model of equipment installed in different places, and to determine the extent of agreement. Materials and Methods: Twenty seven healthy volunteers aged 20 years and over received two consecutive total body scans using the same dual-energy X-ray absorptiometry model of installed in different places. All scans were conducted on the same day. Results: Relatively good agreements were shown in fat mass, the percent of tissue fat, android fat, and gynoid fat. However, there were two outliers each in lean mass and bone mineral content based on the limits of agreement. Conclusions: These results indicate the need for cross-calibration even with the same model of equipment.
참고문헌 (18)
- Kelly TL, "Quantitative digital radiography versus dual photon absorptiometry of the lumbar spine", J Clin Endocrinol Metab, 67, pp.839~844 (1988)
- Laskey MA, "Dual-energy X-ray absorptiometry and body composition", Nutrition, 12, pp.45~51 (1996)
- Soriano JM, "Pencil-beam vs fan-beam dual-energy X-ray absorptiometry comparisons across four systems: body composition and bone mineral", J Clin Densitom, 7, pp.281~289 (2004)
- Aasen G, "Body composition analysis by dual X-ray absorptiometry: in vivo and in vitro comparison of three different fan-beam instruments", Scand J Clin Lab Invest, 66, pp.659~666 (2006)
- Covey MK, "Regional body composition: cross-calibration of DXA scanners-- QDR4500W and Discovery Wi", Obesity (Silver Spring), 18, pp.632~637 (2010)
- Lantz H, "Differences in whole body measurements by DXA-scanning using two Lunar DPX-L machines", Int J Obes Relat Metab Disord, 23, pp.764~770 (1999)
- Ellis KJ, "Bone mineral and body composition measurements: cross-calibration of pencil-beam and fan-beam dual-energy X-ray absorptiometers", J Bone Miner Res, 13, pp.1613~1618 (1998)
- Bouyoucef SE, "Cross-calibration of a fan-beam X-ray densitometer with a pencilbeam system", Br J Radiol, 69, pp.522~531 (1996)
- Choi YJ, "Crosscalibration of iDXA and Prodigy on spine and femur scans in Korean adults", J Clin Densitom, 12, pp.450~455 (2009)
- Hull H, "iDXA, Prodigy, and DPXL dual-energy X-ray absorptiometry whole-body scans: a cross-calibration study", J Clin Densitom, 12, pp.95~102 (2009)
- Tremollieres FA, "Relative influence of age and menopause on total and regional body composition changes in postmenopausal women", Am J Obstet Gynecol, 175, pp.1594~1600 (1996)
- Bland JM, "Statistical methods for assessing agreement between two methods of clinical measurement", International journal of nursing studies, 47, pp.931~936 (2010)
- Bunce C, "Correlation, agreement, and Bland- Altman analysis: statistical analysis of method com parison studies", Am J Ophthalmol, 148, pp.4~6 (2009)
- Chatburn RL, "Evaluation of instrument error and method agreement", AANA J, 64, pp.261~268 (1996)
- Wang J, "Four commonly used dual-energy X-ray absorptiometry scanners do not identically classify subjects for osteopenia or osteoporosis by T-score in four bone regions BIz11.5", J Clin Densitom, 8, pp.191~198 (2005)
- Pearson D, "Cross calibration of Hologic QDR2000 and GE lunar prodigy for whole body bone mineral density and body composition measurements", J Clin Densitom, 14, pp.294~301 (2011)
- Economos CD, "A multi-center comparison of dual energy X-ray absorptiometers: in vivo and in vitro soft tissue measurement", Eur J Clin Nutr, 51, pp.312~317 (1997)
- Knapp KM, "Obesity Increases Precision Errors in Dual-Energy X-Ray Absorptiometry Measurements", J Clin Densitom, 15, pp.315~319 (2012)
