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. 2015 Dec 2;27(2):e15. doi: 10.3802/jgo.2016.27.e15

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Copyright © 2016. Asian Society of Gynecologic Oncology, Korean Society of Gynecologic Oncology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Positron emission tomography/computed tomography (PET/CT) (A), CT (B), PET (C) images, and three-dimensional (3D)-VOI based standardized uptake value (SUV)-histogram (D) for measurement of intratumoral [¹⁸F]fluorodeoxyglucose (FDG) heterogeneity (IFH) using a SUV-based automated contouring program in a 49-year-old female patient. Transaxial PET/CT image (A-C) shows a mass lesion in the pelvic cavity (arrow); axial PET image (C) shows a heterogeneous distribution of FDG. 3D-VOI based SUV-histogram of this single tumor (D) shows heterogeneous FDG uptake. Thus, the coefficient of variation (CV) of this mass is 0.185 as following the calculation of standard deviation (SD) of SUVs (2.32) divided by SUV_avg (12.54).