Ultrasound-measured visceral adipose tissue thickness showed a strong correlation with MRI (r = 0.82) and fair diagnostic accuracy for prediabetes in women (AUC = 0.71).
Cross-Sectional (n=113)
Does ultrasound accurately measure abdominal fat distribution compared to MRI and associate with metabolic conditions in adults with abdominal obesity?
Ultrasound is a useful and accurate screening tool for evaluating visceral adipose tissue thickness, which correlates with MRI and is associated with prediabetes and metabolic syndrome in women.
Effect estimate: r = 0.82
AIMS: To evaluate the accuracy of abdominal fat distribution of subcutaneous (SAT) and visceral adipose tissue (VAT) assessed by ultrasound (US) compared to magnetic resonance imaging (MRI), as the gold standard technique. Additionally, to assess the association between abdominal fat distribution measured by US and metabolic conditions in adults with abdominal obesity. MATERIALS AND METHODS: A cross-sectional study (ClinicalTrials.gov: NCT05882149) included 113 individuals (65.5% women) with waist circumference ≥102 cm for men and ≥88 cm for women. VAT and SAT were measured by both US and MRI. Diagnostic performance was evaluated using ROC curve analysis. RESULTS: Participants were (mean ± SD) 52.8 ± 10.9 years old. VAT thickness measured by US showed a strong correlation with MRI (r = 0.82). For prediabetes, US-measured VAT thickness showed fair diagnostic accuracy in women (AUC = 0.71) with a proposed cut-off of 5.87 cm. For metabolic syndrome, US-measured VAT thickness showed poor diagnostic accuracy in women (AUC = 0.69), with a proposed cut-off of 4.83 cm. Also, VAT/SAT ratio (thickness) measured by US showed fair diagnostic accuracy for prediabetes in women (AUC = 0.72), with a proposed cut-off of 3.04, and poor diagnostic accuracy for metabolic syndrome in women (AUC = 0.69), with a proposed cut-off of 2.52. CONCLUSIONS: Ultrasound represents a useful screening tool for VAT thickness evaluation with an easy translation to clinical practice. Particularly, VAT thickness and VAT/SAT ratio (thickness) are positively associated with prediabetes and metabolic syndrome, especially in women.
Hoevel et al. (Wed,) conducted a cross-sectional in abdominal obesity (n=113). Ultrasound assessment of abdominal fat distribution vs. Magnetic resonance imaging (MRI) was evaluated on Correlation of VAT thickness measured by ultrasound with MRI (r = 0.82). Ultrasound-measured visceral adipose tissue thickness showed a strong correlation with MRI (r = 0.82) and fair diagnostic accuracy for prediabetes in women (AUC = 0.71).
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