The effect of extending femur scan length on BMD results on the Hologic Discovery-W scanner.A longer dual-energy X-ray absorptiometry scan field of the hip may be useful for the detection of atypical subtrochanteric femur fractures. 
Hologic Discovery-W
It has been demonstrated in a Prodigy GE/Lunar scanner that extending the scan length does not affect bone mineral density (BMD) results at the total hip or femoral neck. 
Prodigy GE/Lunar
The effect of extending femur scan length on BMD results on the Hologic Discovery-W scanner.A longer dual-energy X-ray absorptiometry scan field of the hip may be useful for the detection of atypical subtrochanteric femur fractures.  We hypothesized that extending the scan field on a Hologic Discovery scanner would also have no effect on BMD results at the hip. 
Hologic Discovery