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Determining the precision of dual energy x-ray absorptiometry and bioelectric impedance spectroscopy in the assessment of breast cancer-related lymphedema.

Identifieur interne : 001B80 ( PubMed/Checkpoint ); précédent : 001B79; suivant : 001B81

Determining the precision of dual energy x-ray absorptiometry and bioelectric impedance spectroscopy in the assessment of breast cancer-related lymphedema.

Auteurs : Anne L. Newman [Canada] ; Leonard Rosenthall ; Anna Towers ; Pamela Hodgson ; Carol A. Shay ; Dorit Tidhar ; Antonio Vigano ; Robert D. Kilgour

Source :

RBID : pubmed:23772720

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English descriptors

Abstract

The composition of breast cancer-related lymphedema (BCRL) has been shown to evolve from the initial accumulation of fluid to the development of fibrotic lesions and abnormal fat deposition. Therefore, precise and reliable assessments of BCRL are required to develop accurate staging and management. Although dual energy x-ray absorptiometry (DXA) and bioelectric impedance spectroscopy (BIS) have been used to assess BCRL, no study has evaluated the precision of these two modalities in the same cohort.

DOI: 10.1089/lrb.2012.0020
PubMed: 23772720


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pubmed:23772720

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<term>Absorptiometry, Photon (methods)</term>
<term>Adult</term>
<term>Aged</term>
<term>Breast Neoplasms (complications)</term>
<term>Breast Neoplasms (diagnostic imaging)</term>
<term>Breast Neoplasms (physiopathology)</term>
<term>Electric Impedance</term>
<term>Female</term>
<term>Humans</term>
<term>Lymphedema (complications)</term>
<term>Lymphedema (diagnostic imaging)</term>
<term>Lymphedema (physiopathology)</term>
<term>Middle Aged</term>
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<term>Absorptiométrie photonique ()</term>
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<term>Adulte d'âge moyen</term>
<term>Femelle</term>
<term>Humains</term>
<term>Impédance électrique</term>
<term>Lymphoedème ()</term>
<term>Lymphoedème (imagerie diagnostique)</term>
<term>Lymphoedème (physiopathologie)</term>
<term>Reproductibilité des résultats</term>
<term>Sujet âgé</term>
<term>Tumeurs du sein ()</term>
<term>Tumeurs du sein (imagerie diagnostique)</term>
<term>Tumeurs du sein (physiopathologie)</term>
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<term>Breast Neoplasms</term>
<term>Lymphedema</term>
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<term>Breast Neoplasms</term>
<term>Lymphedema</term>
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<term>Lymphoedème</term>
<term>Tumeurs du sein</term>
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<term>Tumeurs du sein</term>
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<term>Breast Neoplasms</term>
<term>Lymphedema</term>
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<term>Aged</term>
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<front>
<div type="abstract" xml:lang="en">The composition of breast cancer-related lymphedema (BCRL) has been shown to evolve from the initial accumulation of fluid to the development of fibrotic lesions and abnormal fat deposition. Therefore, precise and reliable assessments of BCRL are required to develop accurate staging and management. Although dual energy x-ray absorptiometry (DXA) and bioelectric impedance spectroscopy (BIS) have been used to assess BCRL, no study has evaluated the precision of these two modalities in the same cohort.</div>
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<Month>Jun</Month>
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<Title>Lymphatic research and biology</Title>
<ISOAbbreviation>Lymphat Res Biol</ISOAbbreviation>
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<ArticleTitle>Determining the precision of dual energy x-ray absorptiometry and bioelectric impedance spectroscopy in the assessment of breast cancer-related lymphedema.</ArticleTitle>
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<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">The composition of breast cancer-related lymphedema (BCRL) has been shown to evolve from the initial accumulation of fluid to the development of fibrotic lesions and abnormal fat deposition. Therefore, precise and reliable assessments of BCRL are required to develop accurate staging and management. Although dual energy x-ray absorptiometry (DXA) and bioelectric impedance spectroscopy (BIS) have been used to assess BCRL, no study has evaluated the precision of these two modalities in the same cohort.</AbstractText>
<AbstractText Label="METHODS AND RESULTS" NlmCategory="RESULTS">We determined the precision of DXA and BIS in lymphedematous (LE) and nonaffected (NA) arms of 24 women with Stage II unilateral BCRL. Precision was calculated from the results of paired bilateral arm measurements obtained from DXA scans measuring fat, lean, and bone mineral masses, BIS measuring extracellular fluid (ECF) and total fluid volume, and circumferential tape measurements (CM) of the arms to calculate the anatomic volume. Precision error was expressed as the root mean square (RMS) of the coefficients of variation (%CV) and standard deviations (SD).</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">The precisions of DXA and BIS varied from 1.16% (DXA measurements of LE arm total volume) to 1.86% (BIS LE arm total fluid volume) and from 0.95% (DXA lean mass of NA arm) to 1.72% (DXA BMC of NA arm). Precision of CM measures of arm volume were 1.71% CV for LE arm and 2.51% CV for NA arm. The fat and lean masses of the LE arm exceeded the NA arm by about 15% (p<0.0001). ECF and total fluid volume of LE arm was 22.6% and 19% greater than the NA arm (p<0.0001), respectively.</AbstractText>
<AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">For BCRL, these findings suggest that DXA and BIS are two measurement instruments that provide acceptable levels of precision for the measurement of arm lean mass, fat mass and ECF volume, respectively.</AbstractText>
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