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Towards visceral fat estimation at population scale: correlation of visceral adipose tissue assessment using three-dimensional cross-sectional imaging with BIA, DXA, and single-slice CT

Frontiers in endocrinology (Lausanne), 2023-07, Vol.14, p.1211696-1211696 [Peer Reviewed Journal]

Copyright © 2023 Chan, Yu, Huang and Vardhanabhuti. ;Copyright © 2023 Chan, Yu, Huang and Vardhanabhuti 2023 Chan, Yu, Huang and Vardhanabhuti ;ISSN: 1664-2392 ;EISSN: 1664-2392 ;DOI: 10.3389/fendo.2023.1211696 ;PMID: 37497346

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  • Title:
    Towards visceral fat estimation at population scale: correlation of visceral adipose tissue assessment using three-dimensional cross-sectional imaging with BIA, DXA, and single-slice CT
  • Author: Chan, Benjamin ; Yu, Yan ; Huang, Fan ; Vardhanabhuti, Varut
  • Subjects: computed tomography ; correlation ; DXA (dual-energy x-ray absorptiometry) ; Endocrinology ; MRI ; visceral adipose tissue
  • Is Part Of: Frontiers in endocrinology (Lausanne), 2023-07, Vol.14, p.1211696-1211696
  • Description: In terms of assessing obesity-associated risk, quantification of visceral adipose tissue (VAT) has become increasingly important in risk assessment for cardiovascular and metabolic diseases. However, differences exist in the accuracy of various modalities, with a lack of up-to-date comparison with three-dimensional whole volume assessment. Using CT or MRI three-dimensional whole volume VAT as a reference, we evaluated the correlation of various commonly used modalities and techniques namely body impedance analysis (BIA), dual-energy x-ray absorptiometry (DXA) as well as single slice CT to establish how these methods compare. We designed the study in two parts. First, we performed an intra-individual comparison of the 4558 participants from the UK Biobank cohorts with matching data of MRI abdominal body composition, DXA with VAT estimation, and BIA. Second, we evaluated 174 CT scans from the publicly available dataset to assess the correlation of the commonly used single-slice technique compared to three-dimensional VAT volume. Across the UK Biobank cohort, the DXA-derived VAT measurement correlated better (R 0.94, p<0.0001) than BIA (R 0.49, p<0.0001) with reference three-dimensional volume on MRI. However, DXA-derived VAT correlation was worse for participants with a BMI of < 20 (R = 0.62, p=0.0013). A commonly used single slice method on CT demonstrated a modest correlation (R between 0.51 - 0.64), with best values at L3- and L4 (R L3 = 0.63, p<0.0001; L4 = 0.64, p<0.0001) compared to reference three-dimensional volume. Combining multiple slices yielded a better correlation, with a strong correlation when L2-L3 levels were combined (R = 0.92, p<0.0001). When deployed at scale, DXA-derived VAT volume measurement shows excellent correlation with three-dimensional volume on MRI based on the UK Biobank cohort. Whereas a single slice CT technique demonstrated moderate correlation with three-dimensional volume on CT, with a stronger correlation achieved when multiple levels were combined.
  • Publisher: Switzerland: Frontiers Media S.A
  • Language: English
  • Identifier: ISSN: 1664-2392
    EISSN: 1664-2392
    DOI: 10.3389/fendo.2023.1211696
    PMID: 37497346
  • Source: Directory of Open Access Scholarly Resources (ROAD)
    Geneva Foundation Free Medical Journals at publisher websites
    PubMed Central
    DOAJ Directory of Open Access Journals
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