5
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Accuracy in body composition scanning by adult half-body DXA scanning Translated title: Precisión en la exploración de la composición corporal mediante DXA de medio cuerpo en adultos

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Abstract Introduction: dual-energy X-ray absorptiometry (DXA) is the gold standard method, although one limitation is the size of the scan area. Objective: the objective was to verify the accuracy of body composition (BC) scanning through half-body DXA scanning compared to standard total body scanning. Methods: a study was conducted on 145 volunteers. Weight and height were assessed. Body mass index (BMI) was calculated. DXA was used for whole-body scan (WBS) and half-body scan (HBS). WBS was used as the reference method and the following indicators were extracted: bone mineral content (BMC), fat mass (FM), lean soft tissue (LST) and percentage fat mass (%FM). Results: no differences were observed in the body composition indicators (BMC, FM, LST and %FM) when compared between the reference WBS scanner and the HBS scanner. The predictive power between both scans ranged in both sexes between R2 = 0.94 and 0.98. The DRI desirable reproducibility index values defining the degree of agreement between both scans ranged from 0.97 to 0.99, and the values for precision (0.97 to 0.99) and accuracy (0.99) were high. Conclusion: HBS scanning by DXA evidenced agreement, and high values of accuracy and precision to assess body composition indicators (BMC, FM, LST and %FM).

          Translated abstract

          Resumen Introducción: la absorciometría de rayos X de doble energía (DXA) es el método de referencia, aunque una limitación es el tamaño del área de exploración. Objetivo: el objetivo fue verificar la precisión de la exploración de la CB mediante la exploración DXA de medio cuerpo en comparación con la exploración estándar de todo el cuerpo. Métodos: se realizó un estudio con 145 voluntarios. Se evaluaron el peso y la altura. Se calculó el índice de masa corporal (IMC). Se utilizó la DXA para la exploración de cuerpo entero (WBS) y la exploración de medio cuerpo (HBS). Se utilizó la PEP como método de referencia y se extrajeron los siguientes indicadores: contenido mineral óseo (CMO), masa grasa (MG), tejido blando magro (TBL) y porcentaje de masa grasa (%MG). Resultados: no se observaron diferencias en los indicadores de composición corporal (BMC, FM, LST y %FM) cuando se compararon entre el escáner WBS de referencia y el escáner HBS. El poder predictivo entre ambos escáneres osciló en ambos sexos entre R2 = 0,94 y 0,98. Los valores del índice de reproducibilidad deseable DRI que definen el grado de acuerdo entre ambas exploraciones oscilaron entre 0,97 y 0,99, y los valores de precisión (0,97 a 0,99) y exactitud (0,99) fueron altos. Conclusión: la exploración de HBS mediante DXA evidenció concordancia y altos valores de exactitud y precisión para evaluar los indicadores de composición corporal (BMC, FM, LST y %FM).

          Related collections

          Most cited references23

          • Record: found
          • Abstract: not found
          • Article: not found

          A Concordance Correlation Coefficient to Evaluate Reproducibility

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Aging and Imaging Assessment of Body Composition: From Fat to Facts

            The aging process is characterized by the chronic inflammatory status called “inflammaging”, which shares major molecular and cellular features with the metabolism-induced inflammation called “metaflammation.” Metaflammation is mainly driven by overnutrition and nutrient excess, but other contributing factors are metabolic modifications related to the specific body composition (BC) changes occurring with age. The aging process is indeed characterized by an increase in body total fat mass and a concomitant decrease in lean mass and bone density, that are independent from general and physiological fluctuations in weight and body mass index (BMI). Body adiposity is also re-distributed with age, resulting in a general increase in trunk fat (mainly abdominal fat) and a reduction in appendicular fat (mainly subcutaneous fat). Moreover, the accumulation of fat infiltration in organs such as liver and muscles also increases in elderly, while subcutaneous fat mass tends to decrease. These specific variations in BC are considered risk factors for the major age-related diseases, such as cardiovascular diseases, type 2 diabetes, sarcopenia and osteoporosis, and can predispose to disabilities. Thus, the maintenance of a balance rate of fat, muscle and bone is crucial to preserve metabolic homeostasis and a health status, positively contributing to a successful aging. For this reason, a detailed assessment of BC in elderly is critical and could be an additional preventive personalized strategy for age-related diseases. Despite BMI and other clinical measures, such as waist circumference measurement, waist-hip ratio, underwater weighing and bioelectrical impedance, are widely used as a surrogate measure for body adiposity, they barely reflect the distribution of body fat. Because of the great advantages offered by imaging tools in research and clinics, the attention of clinicians is now moving to powerful imaging techniques such as computed tomography, magnetic resonance imaging, dual-energy X-ray absorptiometry and ultrasound to obtain a more accurate estimation of BC. The aim of this review is to present the state of the art of the imaging techniques that are currently available to measure BC and that can be applied to the study of BC changes in the elderly, outlining advantages and disadvantages of each technique.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Prevalence of sarcopenia and its association with osteoporosis in 313 older women following a hip fracture.

              Changes in body composition, including a decrease in muscle and bone mass, accompany aging. Our aim was to assess the prevalence of sarcopenia and its association with osteoporosis in hip-fracture women. We performed a Dual-Energy X-Ray Absorptiometry (DXA) scan in 313 of 340 women, 20.9 ± 6.5 (mean ± S.D.) days after hip-fracture occurrence. To adjust appendicular lean mass for body size we divided it by height squared in each woman. A total of 180 of the 313 women (58%) were sarcopenic, whereas 230 (74%) were osteoporotic. After adjustment for age and interval between fracture and DXA scan we found a significant association between sarcopenia and osteoporosis (p=0.026). For a sarcopenic woman the adjusted odds ratio (OR) for osteoporosis was 1.80 (95%CI=1.07-3.02). Our data shows the high prevalence of sarcopenia and its significant association with osteoporosis in a large sample of hip-fracture women. Data supports a research approach on preventive and treatment strategies for osteoporosis and sarcopenia targeting both bone and muscle tissue. Furthermore, data should be considered when the economic burden of sarcopenia is estimated, given the high proportion of sarcopenic women with bone fragility. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
                Bookmark

                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                April 2023
                : 40
                : 2
                : 362-367
                Affiliations
                [1] Talca Maule orgnameUniversidad Católica del Maule Chile
                [2] Santiago orgnameUniversidad Católica Silva Henriquez Chile
                [6] Arequipa Arequipa orgnameUniversidad Católica de Santa María Peru
                [4] Chillán orgnameUniversidad del Bío Bío Chile
                [5] Santiago Araucanía orgnameUniversidad Autónoma de Chile Chile
                [3] Sao Paulo São Paulo orgnameUniversidade Estadual de Campinas Brazil
                Article
                S0212-16112023000300018 S0212-1611(23)04000200018
                10.20960/nh.04416
                36926940
                b27084a6-acec-4f09-9932-6c4e458cec41

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 28 August 2022
                : 11 December 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 24, Pages: 6
                Product

                SciELO Spain

                Categories
                Original Papers

                Adult,Adulto,Precisión,Composición corporal,DXA,Accuracy,Body composition

                Comments

                Comment on this article