Asia Ocean J Nucl Med Biol
January 2016
Objectives: Considering the fact that the standardized uptake value (SUV) of a normal lung tissue is expressed as ±, +3× could be considered as the threshold value to outline the internal tumor volume (ITV) of a lung neoplasm.
Methods: Three hollow models were filled with 55.0 kBq/mL fluorine-18 fluorodeoxyglucose (F-FDG) to represent tumors.
Objective: A scheme, named SUV_Shape, for the gross tumor volume (GTV) delineation on positron emission tomography (PET) images was designed by a numerical approximation method, and evaluated during this study.
Methods: Twenty-one vacuous plastic balls of different shapes and sizes, their volumes ranged from 0.56 to 179.