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Published in: Molecular Imaging and Biology 1/2019

Open Access 01-02-2019 | Research Article

Performance Evaluation of a Semi-automated Method for [18F]FDG Uptake in Abdominal Visceral Adipose Tissue

Authors: Stefanie A. de Boer, Daan S. Spoor, Riemer H. J. A. Slart, Douwe J. Mulder, Melanie Reijrink, Ronald J. H. Borra, Gerbrand M. Kramer, Otto S. Hoekstra, Ronald Boellaard, Marcel J. Greuter

Published in: Molecular Imaging and Biology | Issue 1/2019

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Abstract

Purpose

Severity of abdominal obesity and possibly levels of metabolic activity of abdominal visceral adipose tissue (VAT) are associated with an increased risk for cardiovascular disease (CVD). In this context, the purpose of the current study was to evaluate the reproducibility and repeatability of a semi-automated method for assessment of the metabolic activity of VAT using 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) positron emission tomography (PET)/x-ray computed tomography (CT).

Procedures

Ten patients with lung cancer who underwent two baseline whole-body [18F]FDG PET/low-dose (LD) CT scans within 1 week were included. Abdominal VAT was automatically segmented using CT between levels L1–L5. The initial CT-based segmentation was further optimized using PET data with a standardized uptake value (SUV) threshold approach (range 1.0–2.5) and morphological erosion (range 0–5 pixels). The [18F]FDG uptake in SUV that was measured by the automated method was compared with manual analysis. The reproducibility and repeatability were quantified using intraclass correlation coefficients (ICCs).

Results

The metabolic assessment of VAT on [18F]FDG PET/LDCT scans expressed as SUVmean, using an automated method showed high inter and intra observer (all ICCs > 0.99) and overall repeatability (ICC = 0.98). The manual method showed reproducible inter observer (all ICCs > 0.92), but less intra observer (ICC = 0.57) and less overall repeatability (ICC = 0.78) compared with the automated method.

Conclusions

Our proposed semi-automated method provided reproducible and repeatable quantitative analysis of [18F]FDG uptake in VAT. We expect this method to aid future research regarding the role of VAT in development of CVD.
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Metadata
Title
Performance Evaluation of a Semi-automated Method for [18F]FDG Uptake in Abdominal Visceral Adipose Tissue
Authors
Stefanie A. de Boer
Daan S. Spoor
Riemer H. J. A. Slart
Douwe J. Mulder
Melanie Reijrink
Ronald J. H. Borra
Gerbrand M. Kramer
Otto S. Hoekstra
Ronald Boellaard
Marcel J. Greuter
Publication date
01-02-2019
Publisher
Springer International Publishing
Published in
Molecular Imaging and Biology / Issue 1/2019
Print ISSN: 1536-1632
Electronic ISSN: 1860-2002
DOI
https://doi.org/10.1007/s11307-018-1211-1

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