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ABSTRACT: Background and aims
Computed tomography, which uses ionizing radiation and expensive software packages for analysis of scans, can be used to quantify abdominal fat. The objective of this study is to measure abdominal fat with 3T MRI using free software for image analysis and to correlate these findings with anthropometric and laboratory parameters in adolescents.Methods
This prospective observational study included 24 overweight/obese and 33 healthy adolescents (mean age 16.55 years). All participants underwent abdominal MRI exams. Visceral and subcutaneous fat area and percentage were correlated with anthropometric parameters, lipid profile, glucose metabolism, and insulin resistance. Student's t test and Mann-Whitney's test was applied. Pearson's chi-square test was used to compare proportions. To determine associations Pearson's linear correlation or Spearman's correlation were used.Results
In both groups, waist circumference (WC) was associated with visceral fat area (P = 0.001 and P = 0.01 respectively), and triglycerides were associated with fat percentage (P = 0.046 and P = 0.071 respectively). In obese individuals, total cholesterol/HDL ratio was associated with visceral fat area (P = 0.03) and percentage (P = 0.09), and insulin and HOMA-IR were associated with visceral fat area (P = 0.001) and percentage (P = 0.005).Conclusions
3T MRI can provide reliable and good quality images for quantification of visceral and subcutaneous fat by using a free software package. The results demonstrate that WC is a good predictor of visceral fat in obese adolescents and visceral fat area is associated with total cholesterol/HDL ratio, insulin and HOMA-IR.
SUBMITTER: Eloi JC
PROVIDER: S-EPMC5271344 | biostudies-literature | 2017
REPOSITORIES: biostudies-literature
Eloi Juliana Cristina JC Epifanio Matias M de Gonçalves Marília Maia MM Pellicioli Augusto A Vieira Patricia Froelich Giora PF Dias Henrique Bregolin HB Bruscato Neide N Soder Ricardo Bernardi RB Santana João Carlos Batista JC Mouzaki Marialena M Baldisserotto Matteo M
PloS one 20170127 1
<h4>Background and aims</h4>Computed tomography, which uses ionizing radiation and expensive software packages for analysis of scans, can be used to quantify abdominal fat. The objective of this study is to measure abdominal fat with 3T MRI using free software for image analysis and to correlate these findings with anthropometric and laboratory parameters in adolescents.<h4>Methods</h4>This prospective observational study included 24 overweight/obese and 33 healthy adolescents (mean age 16.55 ye ...[more]