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lüll A portable real-time ultrasonic bone densitometer Kaufman JJ; Luo G; Siffert RSUltrasound Med Biol 2007[Sep]; 33 (9): 1445-52The objectives of this study were to develop a novel ultrasound device to estimate bone mineral density (BMD) at the calcaneus. The device is entirely self-contained, portable (or=0.9), effectively making the former parameter a proxy for the latter. In conclusion, although X-ray methods are effective in bone mass assessment, osteoporosis remains one of the largest undiagnosed and under-diagnosed diseases in the world today. The research described here, in conjunction with the fact that the devices are designed to be manufactured at very low cost (approximately $400 USD), should enable the significant expansion of diagnosis and monitoring of osteoporosis.|*Ultrasonics[MESH]|Absorptiometry, Photon[MESH]|Adult[MESH]|Age Factors[MESH]|Aged[MESH]|Aged, 80 and over[MESH]|Algorithms[MESH]|Biomechanical Phenomena/instrumentation[MESH]|Bone Density/*physiology[MESH]|Calcaneus/*physiology[MESH]|Computer Simulation[MESH]|Equipment Design[MESH]|Female[MESH]|Humans[MESH]|Middle Aged[MESH]|Time Factors[MESH] |