Precision error in dual-photon absorptiometry related to source age.
An average, variable precision error of up to 6% related to source age was observed for dual-photon absorptiometry of the spine in a longitudinal study of bone mineral content involving 393 women. Application of a software correction for source decay compensated for only a portion of this error. The authors conclude that measurement of bone-loss rates using serial dual-photon bone mineral measurements must be interpreted with caution.
Ross
P D
PD
Kuakini Osteoporosis Study, Honolulu, HI 96817.
Wasnich
R D
RD
Vogel
J M
JM
D000328:Adult; D000368:Aged; D001842:Bone and Bones / Q000032:analysis; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D008903:Minerals / Q000032:analysis; D008961:Models, Structural; D010024:Osteoporosis / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging / Q000592:standards*; D012984:Software
D008903:Minerals