Dual-energy X-ray absorptiometry–based body volume measurement for 4-compartment body composition

Total body volume (TBV), with the exclusion of internal air voids, is necessary to quantify body composition in Lohman's 4-compartment (4C) model.This investigation sought to derive a novel, TBV measure with the use of only dual-energy X-ray absorptiometry (DXA) attenuation values for use in Lohman's 4C body composition model.Pixel-specific masses and volumes were calculated from low- and high-energy attenuation values with the use of first...