X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1997-03-05
1998-04-28
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 54, G06F15900
Patent
active
057455449
ABSTRACT:
A dual energy densitometer includes a solid state linear x-ray detector which may be swept across the patient with the movement of a poly-energetic fan beam of x-rays to produce a digital bone density image. A broad spectrum film plate interposed between the detector and the patient simultaneously provides a full spectrum radiographic image of high resolution and low parallax such as may be used for morphometric studies. Intervertebral spaces may be used to measure vertebrae heights which may be statistically combined to provide a standard against which crush fractures may be detected.
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The Assessment of Vertebral Deformity: A method for Use in Population Studies and Clinical Trials by E. V. McCloskey et al., Osteoporosis International (1993) 3: 138-147 no month.
Normal Vertebral Dimensions and Normal Variation in Serial Measurements of Vertebrae, K. Michael Davies et al., Journal of Bone and Mineral Research, vol. 4, No. 3, 1989. No month.
Verteebral morphometry: normative data, J. C. Gallagher et al., Bone and Mineral, 4, (1988) 189-196. No month.
Lunar Corporation
Porta David P.
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